Complete Engine Build Kit for Serious 1.6T Gamma Builds
Everything you need to build a bulletproof 1.6 Gamma G4FJ engine in one complete kit. Designed and tested by KDM Tuners, this comprehensive package includes forged pistons, H-beam rods, bearings, ARP studs, and all gaskets - proven to support 360+ HP reliably with potential for 600 HP with sleeving.
🚀 Power Capabilities
- 360 HP capable - Proven reliable power level with this kit
- 600 HP potential - With block sleeving and upgraded fueling
- Track-tested components - Used on KDM Tuners' own race cars
- Perfect for big turbo builds - Pair with upgraded turbo for 350+ HP
✅ Complete Kit Includes
- Traum 9.5:1 Forged Pistons - Rated for 600 HP
- Molnar H-Beam Rods - 4340 billet with ARP2000 bolts
- Bearings of Choice - Select from 4 premium options
- Thrust Bearings - Complete bearing set
- OEM Gasket Rebuild Kit - All necessary gaskets
- Main Bolts/Studs - OEM or upgraded ARP 10mm studs
- ARP Head Studs - Custom drop-in kit for 1.6T
- Optional: Supertech Valve Springs - Beehive springs rated to 9K RPM
🎯 Why Build Your 1.6 Gamma?
- Stock internals limited to ~250 WHP safely
- Big turbo builds require forged internals
- E85 and high boost need stronger components
- Track use demands bulletproof reliability
- Future-proof for power upgrades
Component Details
🔩 Traum Forged Pistons
- Revised stock GDI dome design
- Maintains 9.5:1 compression ratio
- Full round forged aluminum construction
- Upgraded pins included
- Designed for 600 HP capability
🔩 Molnar H-Beam Rods
- Billet 4340 material construction
- Heat treated and shot peened
- Mag particle inspected
- Tightest tolerances in racing industry
- 3/8" ARP2000 bolts by ARP
🔩 Bearing Options (Choose One)
1. ACL Tri-Metal Bearings
- Designed for high RPM conditions
- High strength overlay plate
- Hardened steel backs on rod bearings
- Increased crush for better retention
- Improved heat transfer
- 3/4 grooved main bearings
- Tight wall tolerances
2. King Tri-Metal Bearings
- Very good fatigue strength
- Excellent seizure resistance
- Excellent embedability for dirt particles
- Excellent conformability for misalignments
- Lead-based overlay protection
- Note: More sensitive to misalignments than bi-metal
3. King Bi-Metal Bearings (Recommended)
- Homogeneous micro-structure
- Good fatigue strength
- Very good seizure resistance with cast iron cranks
- Good embedability for large particles
- Superior conformability vs tri-metal
- Good wear resistance
- Better handling of adverse conditions
- Ideal for rebuilt engines
4. OEM Bearings
- Factory replacement option
- Budget-friendly choice
🔩 ARP Upgraded Main Studs (Optional)
Why Upgrade? Stock 9mm bolts limited to ~380 HP before bearing issues occur.
- 10mm x 1.25 stud kit (borrowed from Genesis 2.0T)
- Handles unlimited power
- Proven solution for high-power builds
⚠️ Important: Requires professional machining - block must be drilled, fitted with Time-Serts, and align honed. Additional $400-600 in machining costs. NOT a drop-in option!
🔩 ARP Head Studs
- Custom drop-in kit for 1.6 Gamma
- 6" long ARP2000 studs
- Specialty nuts for HPFP and cam sensor clearance
- Holds unlimited power
- No machining required
🔩 Supertech Valve Springs (Optional)
- Beehive shaped design
- Lighter and stronger than previous options
- Rated to 9K RPM with no float
- Specific kit for 1.6T Gamma
✅ Compatibility
- 2019-2022 Hyundai Veloster 1.6T
- 2019-2022 Kia Forte 1.6T
- 2021+ Hyundai Elantra N-Line 1.6T
- 2021+ Kia K5 GT 1.6T
- All 1.6 Gamma G4FJ engines
🔧 Additional Services Available
Contact us for pricing on:
- Block sleeving (Golden Eagle or Darton sleeves)
- Complete engine builds
- Head porting
- Throttle body porting
- Turbo upgrades
- Turbo porting
All services performed in-house by KDM Tuners
💯 Why Choose KDM Tuners
- ✓ Designed and tested on our own race cars
- ✓ Proven on track and street
- ✓ All components rated for 600 HP
- ✓ Complete one-stop kit
- ✓ Expert technical support
- ✓ In-house machining and building services
❓ Frequently Asked Questions
Q: How much power can this kit handle?
A: 360 HP reliably with stock block. 600 HP potential with block sleeving and upgraded fueling.
Q: Do I need the ARP main studs?
A: Stock bolts work up to ~380 HP. For higher power or maximum reliability, upgrade to ARP studs (requires machining).
Q: Which bearings should I choose?
A: King Bi-Metal recommended for most builds. ACL Tri-Metal for high RPM racing. King Tri-Metal for ultimate protection. OEM for budget builds.
Q: Do I need valve springs?
A: Recommended for aggressive cams or high RPM use. Stock springs work for most street/track builds.
Q: Can I install this myself?
A: Professional installation strongly recommended. Engine building requires precision tools and experience.
Q: How long until I receive my kit?
A: In-stock kits ship immediately. If components need to be made, allow 4-8 weeks. We'll notify you of lead time at purchase.
⚠️ Important Information
- Lead Time: If parts not in stock, 4-8 weeks for manufacturing
- Small Market: Parts made in batches, not stocked at factories
- Professional Installation Required: Engine building is complex
- Contact Us: For lead time estimates before ordering
Hyundai 1.6 Gamma Engine G4FJ Engine Build Kit
- Regular price
- $1,950.99 USD
- Sale price
Pay over time
Financing may be available with Shop Pay Installments or Klarna at checkout. Eligibility and terms vary.
DROPSHIPPED ITEM, ETA VARIES
