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INSTALLATION NOTE: Bare heads will have valve guides \u0026amp; seats installed, but will require final sizing \u0026amp; a valve job to match the valves you will be using. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3\/4\" reach with flat gasket seat. All Performer and Performer RPM Big-Block Chevy heads: Spark plug is closer to center of bore, will interfere with high-dome pistons for open chamber heads. Use pistons designed for our heads. Match with Edelbrock head gasket sets.","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241157816632,"sku":"EDE60547","price":835.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/280a8c7cf28492124616ec5afd2c2290.jpg?v=1671407591"},{"product_id":"edelbrock-cylinder-head-pontiac-performer-rpm-72cc-for-hydraulic-roller-cam-complete-ea","title":"Edelbrock Cylinder Head Pontiac Performer RPM 72cc for Hydraulic Roller Cam Complete (Ea)","description":"Cylinder Head Specifications:; Combustion chamber volume: 87cc; Intake runner volume: 215cc; Exhaust runner volume: 175cc; Intake valve diameter: 2.11\"; Exhaust valve diameter: 1.66\"; Valve stem diameter: 11\/32\"; Valve guides: Manganese bronze; Deck thickness: 5\/8\"; Valve spring diameter: 1.46\"; Valve spring maximum lift: .575\"; Rocker stud: 7\/16\"; Guideplate: Hardended steel; Pushrod diameter: 5\/16\"; Valve angle: 14°; Exhaust port location: Stock Ram Air IV; Spark plug fitment: 14mm x 3\/4 reach, gasket seat. These cylinder heads are designed for outstanding performance gains in 1962-79 389-455 c.i.d. Pontiac engines. They are patterned after the 1969-70 Ram Air IV Pontiac cylinder head. Performer heads #60579\/#60575 are 50-state emissions legal for 1965-79 vehicles. They feature 87cc combustion chambers designed to maximize performance while using less expensive, low-octane fuel with a streetable 9.5:1 compression ratio. Our Performer RPM heads with the 72cc combustion chamber are for higher compression engines. Performer RPM #60509 is semi-machined and must be finished by a professional cylinder head porter. They include valve guides and seats installed with no intake pushrod holes. Performer RPM #60587 is not port matched or bowl blended and is NHRA accepted for Stock \u0026amp; Super Stock. INSTALLATION NOTE: These heads require Ram Air IV (round port) style exhaust manifolds or headers and Edelbrock head bolt kit #8549. Deck thickness: 5\/8\", rocker stud diameter: 7\/16\", pushrod diameter: 5\/16\" (width of slot in guide plate).","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241158209848,"sku":"EDE60595","price":1503.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/3602278431b510f3f06e9a5b33d9d66a.jpg?v=1671407621"},{"product_id":"edelbrock-cylinder-head-bbc-performer-rpm-348-409ci-for-hydraulic-roller-cam-complete","title":"Edelbrock Cylinder Head BBC Performer RPM 348\/409Ci for Hydraulic Roller Cam Complete","description":"Cylinder Head Specifications; Combustion chamber volume: 16cc; Intake runner volume: 215cc; Exhaust runner volume: 115cc; Intake valve diameter: 2.19; Exhaust valve diameter: 1.72; Valve stem diameter: 11\/32; Valve guides: Manganese bronze; Deck thickness: 9\/16; Valve spring diameter: 1.55; Valve spring maximum lift: .600; Rocker stud: 7\/16; Guideplate: Hardended steel; Pushrod diameter: 3\/8; Valve angle: 0°; Exhaust port location: Stock; Spark plug fitment: 14mm x 3\/4 reach, gasket seat **  Use Edelbrock head gasket sets. May be used on 348 engines with valve lifts up to .550 only. Bare heads will have valve guides and seats installed, but will require final sizing and a valve job to match the valves you will be using. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3\/4 reach with flat gasket seat. These heads will only fit 1958-65 348 c.i.d. W engines if an Edelbrock #5409, #7159 or stock large port 409 c.i.d. manifold is used. Proper cylinder wall notching must be checked to ensure exhaust valve to cylinder clearance. Deck thickness: 9\/16, rocker stud diameter: 7\/16, pushrod diameter: 3\/8 (width of slot in guide plate).","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241158504760,"sku":"EDE60815","price":1727.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/04ddfa352895965290654723a4508271.jpg?v=1671407659"},{"product_id":"edelbrock-cyl-head-sbc-nhra-legal-64cc-straight-plug-bare-single","title":"Edelbrock Cyl Head SBC Nhra Legal 64cc Straight Plug Bare Single","description":"Cylinder Head Specifications: Combustion chamber volume: 65cc \/ 70cc; Intake runner volume: 185cc \u0026amp; 195cc; Exhaust runner volume: 65cc; Intake valve diameter: 2.02\"; Exhaust valve diameter: 1.60\"; Valve stem diameter: 11\/32\"; Valve guides: Maganese Bronze; Deck thickness: 9\/16\"; Valve spring diameter: 1.46\"; Valve spring maximum lift: .575\"; Rocker stud: 3\/8\"; Guideplate: Hardened steel; Pushrod diameter: 5\/16\"; Valve angle: 23°; Exhaust port location: Stock; Spark plug fitment: 14mm x .750 reach, gasket seat. * Performer RPM Cylinder Heads have all of the same great features as our Performer series heads, but are available with straight or angled spark plug configuration to fit a variety of exhaust applications. Available with a polished finish for a show quality look!  **  Match with Edelbrock head gasket sets. Bare heads will have valve guides and seats installed, but will require final sizing and a valve job to match the valves you will be using. To use stock rockers on small-block Chevy heads, .100\" longer than stock pushrods are required. Edelbrock pushrods #9629 are recommended. Use Head Bolt Kits for easy installation. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3\/4\" reach with flat gasket seat. S\/B Chevy heads may not be used on engines with less than 4\" bore (262, 265, 283, 305, 307 c.i.d.) except with cams having less than .450\" valve lift.","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241159684408,"sku":"EDE60887","price":826.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/111fea51257174ad5e905e2f3dacab71.jpg?v=1671407744"},{"product_id":"edelbrock-cylinder-head-sbc-performer-rpm-64cc-straight-spark-plug-for","title":"Edelbrock Cylinder Head SBC Performer RPM 64cc Straight Spark Plug for","description":"Cylinder Head Specifications: Combustion chamber volume: 65cc \/ 70cc; Intake runner volume: 185cc \u0026amp; 195cc; Exhaust runner volume: 65cc; Intake valve diameter: 2.02\"; Exhaust valve diameter: 1.60\"; Valve stem diameter: 11\/32\"; Valve guides: Maganese Bronze; Deck thickness: 9\/16\"; Valve spring diameter: 1.46\"; Valve spring maximum lift: .575\"; Rocker stud: 3\/8\"; Guideplate: Hardened steel; Pushrod diameter: 5\/16\"; Valve angle: 23°; Exhaust port location: Stock; Spark plug fitment: 14mm x .750 reach, gasket seat. * Performer RPM Cylinder Heads have all of the same great features as our Performer series heads, but are available with straight or angled spark plug configuration to fit a variety of exhaust applications. Available with a polished finish for a show quality look!  **  Match with Edelbrock head gasket sets. Bare heads will have valve guides and seats installed, but will require final sizing and a valve job to match the valves you will be using. To use stock rockers on small-block Chevy heads, .100\" longer than stock pushrods are required. Edelbrock pushrods #9629 are recommended. Use Head Bolt Kits for easy installation. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3\/4\" reach with flat gasket seat. S\/B Chevy heads may not be used on engines with less than 4\" bore (262, 265, 283, 305, 307 c.i.d.) except with cams having less than .450\" valve lift.","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241160208696,"sku":"EDE60895","price":1339.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/970e8a5516b27982121a938f304ef8f3.jpg?v=1671407786"},{"product_id":"edelbrock-cyl-head-sbc-nhra-legal-64cc-angled-plug-bare-single","title":"Edelbrock Cyl Head SBC Nhra Legal 64cc Angled Plug Bare Single","description":"Cylinder Head Specifications: Combustion chamber volume: 65cc \/ 70cc; Intake runner volume: 185cc \u0026amp; 195cc; Exhaust runner volume: 65cc; Intake valve diameter: 2.02\"; Exhaust valve diameter: 1.60\"; Valve stem diameter: 11\/32\"; Valve guides: Maganese Bronze; Deck thickness: 9\/16\"; Valve spring diameter: 1.46\"; Valve spring maximum lift: .575\"; Rocker stud: 3\/8\"; Guideplate: Hardened steel; Pushrod diameter: 5\/16\"; Valve angle: 23°; Exhaust port location: Stock; Spark plug fitment: 14mm x .750 reach, gasket seat. * Performer RPM Cylinder Heads have all of the same great features as our Performer series heads, but are available with straight or angled spark plug configuration to fit a variety of exhaust applications. Available with a polished finish for a show quality look!  **  Match with Edelbrock head gasket sets. Bare heads will have valve guides and seats installed, but will require final sizing and a valve job to match the valves you will be using. To use stock rockers on small-block Chevy heads, .100\" longer than stock pushrods are required. Edelbrock pushrods #9629 are recommended. Use Head Bolt Kits for easy installation. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3\/4\" reach with flat gasket seat. S\/B Chevy heads may not be used on engines with less than 4\" bore (262, 265, 283, 305, 307 c.i.d.) except with cams having less than .450\" valve lift.","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241161060664,"sku":"EDE60947","price":826.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/9af22c2242e3bdad457d075d8d2b121f.jpg?v=1671407860"},{"product_id":"edelbrock-cylinder-head-sb-chevrolet-performer-rpm-e-tec-200-for-hydraulic-roller-cam-complete-ea","title":"Edelbrock Cylinder Head SB Chevrolet Performer RPM E-Tec 200 for Hydraulic Roller Cam Complete (Ea)","description":"Cylinder Head Specifications: Combustion chamber vol: 64cc; Intake runner vol: 200cc; Exhaust runner vol: 80cc; Intake v. diameter: 2.02\"; Exhaust v. diameter: 1.60\"; V. stem diameter: 11\/32\"; V. guides: Maganese bronze; Deck thickness: 5\/8\"; V. spring diameter: 1.46\"; V. spring maximum lift: .575\"; Rocker stud: 3\/8\"; Guideplate: Hardened steel; Pushrod diameter: 5\/16\"; V. angle: 23°; Exh. port location: Stock; Spark plug fitment: 14mm x .750 reach, gasket seat.  Edelbrock E-Tec Cylinder Heads are replacements for 302, 327, 350 \u0026amp; 400 c.i.d. S\/B Chevy engines with \"Vortec-style\" manifolds. They feature an LT1-style raised runner intake port design for increased air-flow and ultimate performance. A unique combustion chamber design positions the spark plug closer to the center of the cylinder, promoting a more efficient combustion resulting in more power. These heads include an adjustable rocker stud and guide plate set-up for use with adjustable rockers or washers to properly position the stud height to accommodate factory style self-aligning rocker arms. They have 20% more exhaust flow than cast iron Vortec heads, great performance up to 6000 rpm and can produce 9.5:1 compression with stock pistons in 350 cubic-inch engines. RPM E-Tec cylinder heads are dual-drilled and will accept 1987-95 centerbolt and\/or 1986 \u0026amp; prior perimeter flange mount valve covers and most stock exhaust manifolds. INSTALLATION NOTE: Bare heads will have valve guides and seats installed, but will require final sizing and a valve job to match the valves you will be using. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3\/4\" reach with flat gasket seat. To use stock rockers on small-block Chevy heads, .100\" longer than stock pushrods are required. Edelbrock pushrods #9629 are recommended. Use Head Bolt Kits for easy installation. S\/B Chevy heads may not be used on engines with less than 4\" bore (262, 265, 283, 305, 307 c.i.d.) except with cams having less than .450\" valve lift.","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241162305848,"sku":"EDE60985","price":1043.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/7d82ff6e7834baea5460635b193ad978.jpg?v=1671407892"},{"product_id":"edelbrock-cylinder-head-chrysler-hemi-gen-iii-performer-rpm-early-5-7l-chamber-size-83cc-complete","title":"Edelbrock Cylinder Head Chrysler HEMI (Gen III) Performer RPM Early 5.7L Chamber Size 83cc Complete","description":"Combustion chamber volume: 67cc \/ 73cc \/ 83cc; Intake runner volume: 202cc; Exhaust runner volume: 75cc; Intake valve diameter: 2.165\"; Exhaust valve diameter: 1.650\"; Valve stem diameter: 8mm; Valve guides: Manganese bronze; Deck thickness: N\/A; Valve spring diameter: 1.066\" \/ 1.300\"; Valve spring maximum lift: .630\"; Pushrod diameter: Stock; Valve angle: 18.8° (I) \/ 16.8° (E); Exhaust port location: Eagle; Spark plug fitment: Stock.  The Edelbrock Performer RPM is a bolt-on performance upgrade for 2003-Present Gen III HEMI(R) 5.7L, 6.1L, 6.2L and 6.4L engines. It's designed to fit with the stock intake manifold, exhaust manifold, valve cover, rockers, spark plugs and accessories, as well as Hellcat components. These cylinder heads have been machined to be used on either the driver or passenger side of the block. They are cast from A356 alum and heat treated to T6 specs, machined and assembled at Edelbrock's facility in Torrance, California for guaranteed quality. These cylinder heads feature fully CNC machined combustion chambers along with CNC profiled bowls and port entries\/exits for improved air flow. They also feature more material in the deck and reinforced combustion chambers for increased cylinder pressures. The rocker bosses have been reinforced for improved stability and strength. Extra material has been added around the intake and exhaust ports to allow for porting in racing applications. Both the intake and exhaust port flanges have remained in the factory location for use with OEM components. The intake and exhaust valves have been tipped away from bore wall to unshroud the larger valves, while maintaining factory geometry. The seat diameters have also been increased for improved heat transfer and durability over stock. Match with an Edelbrock Victor EFI #7179 intake manifold for the ultimate in Edelbrock Gen III HEMI performance. ** INSTALLATION NOTE: Incl. all factory accessory holes (Including Hellcat). Compatible with stock valve covers and coils","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241164468536,"sku":"EDE61099","price":1754.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/6a0610bac7e491f550693e300fb2d118.jpg?v=1671407973"},{"product_id":"edelbrock-cyl-head-chrysler-gen-iii-hemi-perf-rpm-2003-present-5-7l-6-4l-v8-73cc-complete","title":"Edelbrock Cyl Head Chrysler Gen III Hemi Perf RPM 2003-Present 5 7L-6 4L V8 73cc Complete","description":"The Edelbrock Performer RPM is a bolt-on performance upgrade for 2003-Present Gen III HEMI® 5.7L, 6.1L, 6.2L and 6.4L engines. Its designed to fit with the stock intake manifold, exhaust manifold, valve cover, rockers, spark plugs and accessories, as well as Hellcat components. These cylinder heads have been machined to be used on either the driver or passenger side of the block. They are cast from A356 aluminum and heat treated to T6 specifications, machined and assembled at Edelbrocks facility in Torrance, California for guaranteed quality. These cylinder heads feature fully CNC machined combustion chambers along with CNC profiled bowls and port entries\/exits for improved air flow. They also feature more material in the deck and reinforced combustion chambers for increased cylinder pressures. The rocker bosses have been reinforced for improved stability and strength. Extra material has been added around the intake and exhaust ports to allow for porting in racing applications. Both the intake and exhaust port flanges have remained in the factory location for use with OEM components. The intake and exhaust valves have been tipped away from bore wall to unshroud the larger valves, while maintaining factory geometry. The seat diameters have also been increased for improved heat transfer and durability over stock. Match with an Edelbrock Victor EFI #7179 intake manifold for the ultimate in Edelbrock Gen III HEMI performance.","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241167548728,"sku":"EDE61119","price":1724.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/482d229e903498660375ad440f8f3782.jpg?v=1671408007"},{"product_id":"edelbrock-cylinder-head-performer-rpm-2003-chrysler-gen-iii-hemi-5-7l-6-4l-v8-67cc-complete","title":"Edelbrock Cylinder Head Performer RPM 2003+ Chrysler Gen III Hemi 5.7L\/6.4L V8 67cc Complete","description":"Combustion chamber volume: 67cc \/ 73cc \/ 83cc; Intake runner volume: 202cc; Exhaust runner volume: 75cc; Intake valve diameter: 2.165\"; Exhaust valve diameter: 1.650\"; Valve stem diameter: 8mm; Valve guides: Manganese bronze; Deck thickness: N\/A; Valve spring diameter: 1.066\" \/ 1.300\"; Valve spring maximum lift: .630\"; Pushrod diameter: Stock; Valve angle: 18.8° (I) \/ 16.8° (E); Exhaust port location: Eagle; Spark plug fitment: Stock.  The Edelbrock Performer RPM is a bolt-on performance upgrade for 2003-Present Gen III HEMI(R) 5.7L, 6.1L, 6.2L and 6.4L engines. It's designed to fit with the stock intake manifold, exhaust manifold, valve cover, rockers, spark plugs and accessories, as well as Hellcat components. These cylinder heads have been machined to be used on either the driver or passenger side of the block. They are cast from A356 alum and heat treated to T6 specs, machined and assembled at Edelbrock's facility in Torrance, California for guaranteed quality. These cylinder heads feature fully CNC machined combustion chambers along with CNC profiled bowls and port entries\/exits for improved air flow. They also feature more material in the deck and reinforced combustion chambers for increased cylinder pressures. The rocker bosses have been reinforced for improved stability and strength. Extra material has been added around the intake and exhaust ports to allow for porting in racing applications. Both the intake and exhaust port flanges have remained in the factory location for use with OEM components. The intake and exhaust valves have been tipped away from bore wall to unshroud the larger valves, while maintaining factory geometry. The seat diameters have also been increased for improved heat transfer and durability over stock. Match with an Edelbrock Victor EFI #7179 intake manifold for the ultimate in Edelbrock Gen III HEMI performance. ** INSTALLATION NOTE: Incl. all factory accessory holes (Including Hellcat). Compatible with stock valve covers and coils","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241168171320,"sku":"EDE61159","price":1754.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/6324565f4b43dda69811ddd52d6b5366.jpg?v=1671408044"},{"product_id":"edelbrock-cylinder-head-chrysler-426-572-hemi-bare-single","title":"Edelbrock Cylinder Head Chrysler 426-572 Hemi Bare Single","description":"Cylinder Head Specifications: Combustion chamber volume: 170cc; Intake runner volume: 245cc; Exhaust runner volume: 105cc; Intake valve diameter: 2.32\"; Exhaust valve diameter: 1.94\"; Valve stem diameter: 5\/16\"; Valve guides: Maganese Bronze; Deck thickness: 5\/8\"; Valve spring diameter: 1.54\"; Valve spring maximum lift: .700\"; Rocker stud: N\/A; Guideplate: N\/A; Pushrod diameter: 5\/16\" or 3\/8\"; Valve angle: Int. (stock) \/ Exh. Tipped 1.5° - 21.5°; Exhaust port location: Stock; Spark plug fitment: 14mm x 3\/4 reach, gasket seat. * Our new Victor Jr. Cylinder Heads are designed for high output 650+ hp Chrysler 426-572 HEMI® engines. They feature fully CNC'd combustion chambers and CNC blended seats for optimal air flow performance. These cylinder heads also feature a revised exhaust valve angle to accommodate larger intake valves. They also feature brass tubes installed in exhaust pushrod holes to allow maximum clearance with minimal port intrusion.","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241168695608,"sku":"EDE61169","price":1395.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/02158f06a4623413077ab7f83eced75c.jpg?v=1671408087"},{"product_id":"edelbrock-cylinder-head-victor-jr-cnc-chrysler-426-572-ci-v8-complete-for-hydraulic-roller-camshaft","title":"Edelbrock Cylinder Head Victor Jr CNC Chrysler 426-572 CI V8 Complete for Hydraulic Roller Camshaft","description":"Cylinder Head Specifications: Combustion chamber volume: 170cc; Intake runner volume: 245cc; Exhaust runner volume: 105cc; Intake valve diameter: 2.32\"; Exhaust valve diameter: 1.94\"; Valve stem diameter: 5\/16\"; Valve guides: Maganese Bronze; Deck thickness: 5\/8\"; Valve spring diameter: 1.54\"; Valve spring maximum lift: .700\"; Rocker stud: N\/A; Guideplate: N\/A; Pushrod diameter: 5\/16\" or 3\/8\"; Valve angle: Int. (stock) \/ Exh. Tipped 1.5° - 21.5°; Exhaust port location: Stock; Spark plug fitment: 14mm x 3\/4 reach, gasket seat. * Our new Victor Jr. Cylinder Heads are designed for high output 650+ hp Chrysler 426-572 HEMI® engines. They feature fully CNC'd combustion chambers and CNC blended seats for optimal air flow performance. These cylinder heads also feature a revised exhaust valve angle to accommodate larger intake valves. They also feature brass tubes installed in exhaust pushrod holes to allow maximum clearance with minimal port intrusion.","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241169285432,"sku":"EDE61175","price":1819.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/3b037cc3dc4c70f011fe169c27004471.jpg?v=1671408131"},{"product_id":"edelbrock-cylinder-head-victor-jr-cnc-chrysler-426-572-ci-v8-complete","title":"Edelbrock Cylinder Head Victor Jr CNC Chrysler 426-572 CI V8 Complete","description":"Cylinder Head Specifications: Combustion chamber volume: 170cc; Intake runner volume: 245cc; Exhaust runner volume: 105cc; Intake valve diameter: 2.32\"; Exhaust valve diameter: 1.94\"; Valve stem diameter: 5\/16\"; Valve guides: Maganese Bronze; Deck thickness: 5\/8\"; Valve spring diameter: 1.54\"; Valve spring maximum lift: .700\"; Rocker stud: N\/A; Guideplate: N\/A; Pushrod diameter: 5\/16\" or 3\/8\"; Valve angle: Int. (stock) \/ Exh. Tipped 1.5° - 21.5°; Exhaust port location: Stock; Spark plug fitment: 14mm x 3\/4 reach, gasket seat. * Our new Victor Jr. Cylinder Heads are designed for high output 650+ hp Chrysler 426-572 HEMI® engines. They feature fully CNC'd combustion chambers and CNC blended seats for optimal air flow performance. These cylinder heads also feature a revised exhaust valve angle to accommodate larger intake valves. They also feature brass tubes installed in exhaust pushrod holes to allow maximum clearance with minimal port intrusion.","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241172070712,"sku":"EDE61179","price":1773.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/827ae24df7607d206d88afabc6adc92e.jpg?v=1671408179"},{"product_id":"edelbrock-single-victor-jr-170cc-cnc-426-572-hemi-bare-head-w-valves","title":"Edelbrock Single Victor Jr 170cc CNC 426-572 Hemi Bare Head w\/ Valves","description":"Cylinder Head Specifications: Combustion chamber volume: 170cc; Intake runner volume: 245cc; Exhaust runner volume: 105cc; Intake valve diameter: 2.32\"; Exhaust valve diameter: 1.94\"; Valve stem diameter: 5\/16\"; Valve guides: Maganese Bronze; Deck thickness: 5\/8\"; Valve spring diameter: 1.54\"; Valve spring maximum lift: .700\"; Rocker stud: N\/A; Guideplate: N\/A; Pushrod diameter: 5\/16\" or 3\/8\"; Valve angle: Int. (stock) \/ Exh. Tipped 1.5° - 21.5°; Exhaust port location: Stock; Spark plug fitment: 14mm x 3\/4 reach, gasket seat. * Our new Victor Jr. Cylinder Heads are designed for high output 650+ hp Chrysler 426-572 HEMI(R) engines. They feature fully CNC'd combustion chambers and CNC blended seats for optimal air flow performance. These cylinder heads also feature a revised exhaust valve angle to accommodate larger intake valves. They also feature brass tubes installed in exhaust pushrod holes to allow maximum clearance with minimal port intrusion.","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241173086520,"sku":"EDE61189","price":1647.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/6918cca4a35e0963f8e02bbe0c07d0f6.jpg?v=1671408207"},{"product_id":"edelbrock-cylinder-head-victor-jr-sbc-23-deg-220cc-complete-for-hydraulic-roller-cam","title":"Edelbrock Cylinder Head Victor Jr SBC 23 Deg 220cc Complete for Hydraulic Roller Cam","description":"Edelbrock Part # 61255 Victor Jr. 23° 220 cylinder heads are designed for small-block Chevy Its 64cc combustion chamber yields around 10:1 compression ratio in a typical flat-top application and about 12.5:1 when used with some of the most common 12cc dome pistons. One of the key features of the Victor Jr. 23° 220 cylinder heads is the CNC machined chambers and bowls, which result in consistency and improved performance. They also feature angled spark plug holes and maintain the stock 23° valve angle as well as the intake flange bolt pattern for use with 1986 and earlier intake manifolds. All of this allows these cylinder heads to deliver 530-580 hp potential right-out-of-the-box, making them ideal for a budget minded engine build desiring a high quality cylinder head that still uses a stud and guide plate rocker system.Cylinder Head Specifications: • Finish: Satin • Designed for use with Hydraulic Roller camshafts • Combustion chamber volume: 64cc • Intake runner volume: 220cc • Exhaust runner volume: 85cc • Intake valve diameter: 2.10\" • Exhaust valve diameter: 1.60\" • Valve stem diameter: 5\/16\" • Valve guides: Manganese bronze • Deck thickness: 11\/16\" • Valve spring diameter: 1.55\" • Valve spring maximum lift: .630\" • Rocker stud: 7\/16\" • Guide plate: Hardened steel • Pushrod diameter: 5\/16\" • Valve angle: 23° • Exhaust port location: Raised .300\" • Spark plug fitment: 14mm x .750 reach, gasket seat","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241173905720,"sku":"EDE61255","price":1726.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/0438512340966fb92fc1ad122b021952.jpg?v=1671408241"},{"product_id":"edelbrock-cylinder-head-e-cnc-gm-gen-iii-iv-ls3-small-port-standard-block","title":"Edelbrock Cylinder Head E-Cnc GM Gen IIi\/IV LS3 Small Port Standard Block","description":"Cylinder Head Specifications: Combustion chamber volume: 69cc; Intake runner volume: 230cc; Exhaust runner volume: 80cc; Intake valve diameter: 2.135\"; Exhaust valve diameter: 1.55\"; Valve stem diameter: 8mm; Valve guides: Manganese bronze; Deck thickness: 5\/8\"; Valve spring diameter: 1.30\"; Valve spring maximum lift: .680\"; Rocker stud: N\/A; Guideplate: N\/A; Pushrod diameter: 5\/16\"; Valve angle: 13.25°; Exhaust port location: 0.125\" Raised Port; Spark plug fitment: 14mm x 3\/4 reach, gasket seat. * Our E-CNC LS3 Cylinder Heads are a great general-purpose high performance cylinder head for any street- strip LS engine. These cylinder heads have a high velocity port compared to stock LS3 cylinder heads, making them an ideal upgrade for any cathedral port or 3.89\" bore LS application. They feature an improved design and casting that gives cylinder head porters more material to work with compared to stock heads. Like all of our other E-CNC cylinder heads, these feature fully CNC'd intake ports, combustion chambers and exhaust ports for improved performance. Compatible with stock style rocker arms. * Match with Edelbrock head gasket sets. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3\/4\" reach with flat gasket seat. IMPORTANT NOTES; E-CNC LS3 cylinder heads are a great general purpose high performance cylinder head for any street- strip LS engine. These cylinder heads have a high velocity port compared to stock LS3 cylinder heads, making them an ideal upgrade for any cathedral port or 3.89\" bore LS application. They feature an improved design and casting that gives cylinder head porters more material to work with compared to stock heads. Compatible with stock style rocker arms. Features an exhaust port that has been raised 0.125\" as well as raised spring pockets that have been machined 0.200\" for use with longer valves.","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241177968952,"sku":"EDE61319","price":1596.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/46951e1a7bbe8504835e989717c1210a.jpg?v=1671408281"},{"product_id":"edelbrock-cylinder-head-e-cnc-gm-gen-iii-iv-ls3-small-port-lsx-block","title":"Edelbrock Cylinder Head E-Cnc GM Gen IIi\/IV LS3 Small Port Lsx Block","description":"Cylinder Head Specifications: Combustion chamber volume: 69cc; Intake runner volume: 230cc; Exhaust runner volume: 80cc; Intake valve diameter: 2.135\"; Exhaust valve diameter: 1.55\"; Valve stem diameter: 8mm; Valve guides: Manganese bronze; Deck thickness: 5\/8\"; Valve spring diameter: 1.30\"; Valve spring maximum lift: .680\"; Rocker stud: N\/A; Guideplate: N\/A; Pushrod diameter: 5\/16\"; Valve angle: 13.25°; Exhaust port location: 0.125\" Raised Port; Spark plug fitment: 14mm x 3\/4 reach, gasket seat. * Our E-CNC LS3 Cylinder Heads are a great general-purpose high performance cylinder head for any street- strip LS engine. These cylinder heads have a high velocity port compared to stock LS3 cylinder heads, making them an ideal upgrade for any cathedral port or 3.89\" bore LS application. They feature an improved design and casting that gives cylinder head porters more material to work with compared to stock heads. Like all of our other E-CNC cylinder heads, these feature fully CNC'd intake ports, combustion chambers and exhaust ports for improved performance. Compatible with stock style rocker arms. * Match with Edelbrock head gasket sets. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3\/4\" reach with flat gasket seat. IMPORTANT NOTES; E-CNC LS3 cylinder heads are a great general purpose high performance cylinder head for any street- strip LS engine. These cylinder heads have a high velocity port compared to stock LS3 cylinder heads, making them an ideal upgrade for any cathedral port or 3.89\" bore LS application. They feature an improved design and casting that gives cylinder head porters more material to work with compared to stock heads. Compatible with stock style rocker arms. Features an exhaust port that has been raised 0.125\" as well as raised spring pockets that have been machined 0.200\" for use with longer valves.","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241178394936,"sku":"EDE61329","price":2074.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/34e74a06f3fe1bfca6b8d15f65c4d44a_6db14b17-6924-4599-9346-5c48edbbb8a6.jpg?v=1671408295"},{"product_id":"edelbrock-cylinder-head-victor-jr-ls3-gm-gen-iii-iv-4-bolt-flange-standard-block-complete","title":"Edelbrock Cylinder Head Victor Jr LS3 GM Gen III\/IV (4-Bolt Flange) Standard Block Complete","description":"The Edelbrock Victor Jr. LS3 cylinder heads are ideal for use in high performance street and competition engines that have reached their limit with a stock-style cylinder head design. Most aftermarket LS3 cylinder heads on the market today are simply stock head designs with larger ports. Our Victor Jr. LS3 cylinder heads are an all-new ground up design that incorporates subtle changes for improved flow and combustion. These changes were made to improve the limitations encountered in the stock cylinder heads when increasing the performance level of the engine. Changes include a 2.20+?G?-? diameter intake valve with a canted configuration similar to what is utilized in the GM LT1 Gen V engine. The intake valve change along with the unique port shape produce almost 400cfm peak flow. These cylinder heads also feature fully CNC+?G?G??d intake ports, combustion chambers and exhaust ports for consistency and improved performance. All of these changes make these cylinder heads capable of producing 600plus hp on an LS3 engine with stock rocker arms, intake manifold and exhaust manifolds. Installation Note: No.61339: Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28in H2O","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241178919224,"sku":"EDE61339","price":1754.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/8e94a6c6d257c116a86d4e7b95fd9042.jpg?v=1671408335"},{"product_id":"edelbrock-cylinder-head-bbc-bv3-pro-port-hipd-11-deg-intake-valve-extended-exhaust-flange","title":"Edelbrock Cylinder Head BBC BV3 Pro Port Hipd 11 Deg Intake Valve Extended Exhaust Flange","description":"These unported versions of race-winning Edelbrock Victor Series CNC heads are designed specifically for the professional cylinder head porter and engine builder. Like all other Edelbrock Cylinder heads, Pro-Port cylinder heads are also cast in the USA at the state-of-the-art Edelbrock Foundry with extra-thick walls to allow for custom CNC porting. In most cases, seats and manganese-bronze valve guides are included, but not installed. Please note: These heads can not be used without professional head preparation. These heads can not be used without professional head preparation. With a true canted valve design (7.3° intake and 6.9° exhaust valve angles), these heads have maximum power potential. Extended intake flange and raised runners works with Yates-style manifolds.","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241179181368,"sku":"EDE613669","price":3194.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/34e74a06f3fe1bfca6b8d15f65c4d44a_9ef421d0-9dd2-4e4d-b83d-f290b605f062.jpg?v=1671408349"},{"product_id":"edelbrock-cyl-head-holden-vn-perf-rpm-single-bare","title":"Edelbrock Cyl Head Holden Vn Perf RPM Single Bare","description":"Cylinder Head Specifications: Combustion chamber volume: 62cc; Intake runner volume: 195cc \/ 200cc; Exhaust runner volume: 68cc; Intake valve diameter: 2.02; Exhaust valve diameter: 1.60; Valve stem diameter: 5\/16; Valve guides: Manganese bronze; Deck thickness: 11\/16 (extra thick); Valve spring diameter: 1.45 \/ 1.30; Valve spring maximum lift: .690 \/ .650; Rocker stud: 7\/16; Guideplate: Hardended steel; Pushrod diameter: 3\/8; Valve angle: 5°; Exhaust port location: Stock; Spark plug fitment: 14mm x 3\/4 reach, gasket seat. INSTALLATION NOTE: Bare heads will have valve guides and seats installed, but will require final sizing and a valve job to match the valves you will be using. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3\/4\" reach with flat gasket seat. Deck thickness: 11\/16\", rocker stud diameter: 7\/16\", pushrod diameter: 3\/8\" (width of slot in guide plate).","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241179935032,"sku":"EDE61379","price":1032.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/4d4f190444a3710052c77933efffbeac.jpg?v=1671408382"},{"product_id":"edelbrock-race-cyl-head-musi-cnc-bbc-victor-24deg-complete","title":"Edelbrock Race Cyl Head Musi CNC BBC Victor 24Deg Complete","description":"Edelbrock and Pat Musi Performance have combined efforts to produce the finest standard intake port location big-block Chevy head available. These cylinder heads feature an extra thick deck and extra material in the spring pockets for a heavy-duty casting that can be used with high-lift cam and heavy spring combinations. Edelbrock equips the complete cylinder heads with Manley dual-spring valve springs and titanium retainers good for up to .880 lift. The port designs are large oval (367 lh \/ 377 rh) that produce impressive flow - out-of-the-box. The exhaust port exits are raised .750 to greatly improve exhaust flow and power. Off the shelf large oval-port intakes are available through Edelbrock. INSTALLATION NOTE: Bare heads will have valve guides \u0026amp; seats installed, but will require final sizing \u0026amp; a valve job to match the valves you will be using. Deck thickness: 9\/16\", rocker stud diameter: 7\/16\", pushrod diameter: 3\/8\" (width of slot in guide plate).","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241180918072,"sku":"EDE61409","price":3138.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/1893c1c838af44b5657380226dfe3d28.jpg?v=1671408433"},{"product_id":"edelbrock-race-cyl-head-musi-cnc-bbc-victor-24deg-bare","title":"Edelbrock Race Cyl Head Musi CNC BBC Victor 24Deg Bare","description":"Edelbrock and Pat Musi Performance have combined efforts to produce the finest standard intake port location big-block Chevy head available. These cylinder heads feature an extra thick deck and extra material in the spring pockets for a heavy-duty casting that can be used with high-lift cam and heavy spring combinations. Edelbrock equips the complete cylinder heads with Manley dual-spring valve springs and titanium retainers good for up to .880 lift. The port designs are large oval (367 lh \/ 377 rh) that produce impressive flow - out-of-the-box. The exhaust port exits are raised .750 to greatly improve exhaust flow and power. Off the shelf large oval-port intakes are available through Edelbrock. INSTALLATION NOTE: Bare heads will have valve guides \u0026amp; seats installed, but will require final sizing \u0026amp; a valve job to match the valves you will be using. Deck thickness: 9\/16\", rocker stud diameter: 7\/16\", pushrod diameter: 3\/8\" (width of slot in guide plate).","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241181901112,"sku":"EDE61419","price":2231.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/58a0e3f6ee2153314561e5ee0f0af070.jpg?v=1671408467"},{"product_id":"edelbrock-cylinder-head-bbc-bv3-pro-port-hipd-11-intake-valve","title":"Edelbrock Cylinder Head BBC BV3 Pro Port Hipd 11 Intake Valve","description":"Intended for high output, large cubic inch racing engines with 4.84\" bore spacing, this head is an improvement over existing 18° designs, such as the Big Chief \u0026amp; Big Duke. The casting is made from A-356 aluminum and is Hot Isostatic Pressing processed (HIP) for superior strength, durability, dimensional stability and exceptional finish quality. These cylinder heads feature CNC ported intake ports and a raised exhaust runner design for improved flow efficiency. Chambers are fully CNC ported and extra material is included in the deck to allow fine tuning of the combustion chamber design, if desired. Edelbrock and Pat Musi worked with Jesel to improve the valvetrain geometry, delivering Pro-Stock level technology on engines up to 10,000 rpm. Jesel's shaft-mounted system, #KPS-387154, is made from lightweight 7000 series aluminum and features a one-piece stand design that pairs the intake and exhaust stands for improved valvetrain stability. The intake features a 1.820\" long fulcrum and is available in 1.60:1 - 1.95:1 rocker ratios; the exhaust features a 2.000\" long fulcrum and available in 1.60:1 - 2.00:1 rocker ratios. Requires Edelbrock valve covers #4259. Match with Edelbrock Victor CNC Series manifolds #28003 and #28005. Pro-Port version available for custom porting.","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241182523704,"sku":"EDE614669","price":2469.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/2440d1019b7d6f1484629677a096318e.jpg?v=1671408512"},{"product_id":"edelbrock-cylinder-head-performer-rpm-cnc-pontiac-1962-1969-455-ci-c8-72-cc-combustion-chamber","title":"Edelbrock Cylinder Head Performer RPM CNC Pontiac 1962-1969 455 CI C8 72 cc Combustion Chamber","description":"Designed for street high performance use, and are interchangeable with original equipment cylinder heads. These heads retain an exhaust crossover passage and are street legal replacement parts.","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241183375672,"sku":"EDE61515","price":1616.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/aa65e3354732ec5e0d42d44427338513.jpg?v=1671408551"},{"product_id":"edelbrock-cylinder-head-performer-rpm-cnc-pontiac-1962-1969-455-ci-v8-87-cc-combustion-chamber","title":"Edelbrock Cylinder Head Performer RPM CNC Pontiac 1962-1969 455 CI V8 87 cc Combustion Chamber","description":"Designed for street high performance use, and are interchangeable with original equipment cylinder heads. These heads retain an exhaust crossover passage and are street legal replacement parts.","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241187111224,"sku":"EDE61529","price":1605.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/621d2f45e49a0b3e2100e598aad55c63.jpg?v=1671408591"},{"product_id":"edelbrock-cylinder-head-bbc-pro-port-victor-high-port-conventional-dr-17-hip-pro-port-raw","title":"Edelbrock Cylinder Head BBC Pro-Port Victor High Port Conventional Dr-17 Hip Pro-Port Raw","description":"The DR17 is the next evolution in Edelbrock conventional style big-block Chevy cylinder heads geared for the sportsman racer. They are designed to deliver consistent and reliable performance through the whole race season. These cylinder heads are based off our popular Victor 24° Gen II Pro-Port Raw design, but features a revised valve angle and location for improved flow and performance. The casting is Hot Isostatic Pressing (HIP) processed for superior strength, durability and exceptional finish quality. Requires the use of shaft rocker system. Tall-deck applications will require the use of spacers. INSTALLATION NOTES: Deck thickness: 9\/16\", rocker stud diameter: 7\/16\", pushrod diameter: 3\/8\" (width of slot in guide plate). Bare heads will have valve guides and seats installed, but will require final sizing and a valve job to match the valves you will be using.","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241187242296,"sku":"EDE615469","price":1931.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/8649b55058cd77114814e81c9046e9e2.jpg?v=1671408613"},{"product_id":"edelbrock-single-marine-bbc-rect-port-head-w-valves","title":"Edelbrock Single Marine BBC Rect Port Head w\/ Valves","description":"Cylinder Head Specifications: Combustion chamber volume: 110cc \/ 118cc; Intake runner volume: 290cc; Exhaust runner volume: 110cc; Intake valve diameter: 2.25\"; Exhaust valve diameter: 1.89\"; Valve stem; diameter: 11\/32\"; Valve guides: Manganese bronze; Deck thickness: 9\/16\"; Valve spring diameter: Hydraulic Roller (#61555); Valve spring maximum lift: N\/A; Rocker stud: 7\/16\"; Guideplate: Hardened steel; Pushrod diameter: 3\/8\"; Valve angle: 26°; Exhaust port location: Stock; Spark plug fitment: 14mm x 3\/4 reach, gasket seat. * Match with Edelbrock head gasket sets. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3\/4\" reach with flat gasket seat. Deck thickness: 9\/16\", rocker stud diameter: 7\/16\", pushrod diameter: 3\/8\" (width of slot in guide plate). INSTALLATION NOTE: Match with Edelbrock head gasket sets. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3\/4\" reach with flat gasket seat. Deck thickness: 9\/16\", rocker stud diameter: 7\/16\", pushrod diameter: 3\/8\" (width of slot in guide plate). All Performer and Performer RPM B\/B Chevy heads have spark plugs relocated closer to center of bore which will interfere with high-dome pistons for open chamber heads. Use pistons designed for our heads. Deck thickness: 3\/4\", pushrod diameter: 7\/16\". Replacement valve part numbers are for sets of 8.","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":44241187864888,"sku":"EDE61559","price":1696.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6611\/0008\/products\/000bf41da0af49058eb4d9d15807d4bd.jpg?v=1671408685"}],"url":"https:\/\/www.btrcarcustoms.com\/collections\/heads.oembed","provider":"BTRcarcustoms","version":"1.0","type":"link"}