SKU: 134-3710 | UPC: 672036049232
ARP 2004 And Later Small Block Chevy GENIII LS 12pt Head Bolt Kit
Secure your engine build with the ARP 134-3710 head bolt kit designed for 2004 and later Small Block Chevy Gen III/IV LS engines featuring raised rail cylinder heads. This 12-point kit replaces stock bolts on LS2, L76, and similar cathedral-port applications in cars and trucks. Deliver consistent clamping force for boosted or high-compression setups.
Key Features
- ARP2000 Alloy Construction: Rated at 220,000 PSI tensile strength to handle extreme cylinder pressures in racing engines
- 12-Point Bolt Design: Ensures accurate torquing without socket slippage for repeatable installation results
- Complete Kit of 16 Bolts: Matches OEM quantity to fasten both cylinder heads with exact lengths for raised rail heads
- Black Oxide Finish: Provides corrosion resistance in harsh engine environments
- Proven Thread Strength: 10mm x 1.5 threads engineered for Gen III/IV LS blocks from 2004 onward
Product Notes
- Use ARP Ultra-Torque assembly lube on threads and under bolt heads during installation
- Inspect block threads and deck surface before assembly
- Ships in protective packaging weighing 3.25 lbs with dimensions 11 x 8.5 x 2.5 inches
Installation Notes
- Professional installation recommended.
- Torque in sequence to ARP specs: 70 ft-lbs initial, then angular steps up to 80 degrees
- Compatible with stock LS raised rail heads. not for early flat rail or rectangle port heads
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2005-2007 | Chevrolet | Corvette | Base LS2 6.0L |
| 2004-2006 | Pontiac | GTO | Base LS1/LS2 5.7L/6.0L |
| 2005-2006 | Chevrolet | SSR | Base LS2 6.0L |
| 2006-2009 | Chevrolet | TrailBlazer | SS L76 6.0L |
| 2005-2006 | Chevrolet | Colorado | Z71 5.3L |
| 2007 | Chevrolet | Silverado 1500 | LTZ 6.0L |
| 2005-2007 | GMC | Envoy | Denali LY6 6.0L |
| 2007-2009 | Chevrolet | Tahoe | LTZ L76 6.0L |
Why Choose ARP?
- Trusted by NHRA and NASCAR teams for decades
- Every bolt exceeds SAE specs for fatigue and tensile strength
- Precision rolled threads for maximum grip in aluminum heads
Frequently Asked Questions
- Q: Will this kit fit 1997-2003 LS1 engines?
A: No, this 134-3710 kit is for 2004+ raised rail heads only. use ARP 134-3603 for earlier flat rail heads - Q: What material and strength rating?
A: Forged ARP2000 chrome moly alloy with 220,000 PSI tensile strength and 130,000 PSI yield strength - Q: What is the torque spec and warranty?
A: Follow ARP instructions for multi-step torque plus angle. backed by ARP’s quality guarantee against manufacturing defects
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Secure plastic tray in cardboard box, 11 x 8.5 x 2.5 inches
- Weight: 3.25 lbs
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