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SKU: 134-3601 | UPC: 672036001742
ARP Cylinder Head Bolt Kit for Chevrolet 23° Cast Iron OEM, Gen III Vortec/Truck, Most Edelbrock, LT-AFR 1987-2002
This ARP cylinder head bolt kit delivers secure clamping force for Chevrolet small block engines equipped with 23° cast iron OEM heads, Gen III Vortec or truck heads, most Edelbrock heads, and LT-AFR heads. Rated at 180,000 PSI tensile strength, these bolts outperform Grade 8 fasteners by 15% to handle high-compression builds and boost power safely. Kits include hardened washers for even load distribution and precise torque retention.
Key Features
- Material: 8740 chromoly steel construction provides exceptional fatigue resistance for high-rpm endurance racing or street performance
- Strength: 180,000 PSI rating ensures reliable head gasket sealing under extreme cylinder pressures
- Head Design: Wide-area flanged heads with reduced hex or 12-point allow retorquing without removing rocker arms or valvetrain
- Washers Included: Hardened parallel-ground washers promote uniform clamping and prevent galling
- Finish: Black oxide coating resists corrosion in harsh engine environments
Product Notes
- Complete kit with all bolts and washers for one cylinder head pair installation
- Ideal for rebuilds, performance upgrades, or stock refreshes on compatible heads
- Securely packaged to prevent damage during transit
Installation Notes
- Professional installation recommended.
- Apply ARP Ultra-Torque fastener lubricant to threads and under heads for accurate torque
- Torque in three steps per ARP instructions: 45 ft-lbs initial, 65 ft-lbs second, 80-90 ft-lbs final depending on application
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1987-1995 | Chevrolet | Small Block Chevy (SBC) | 350 23° Cast Iron Heads |
| 1992-1997 | Chevrolet | Camaro | Z28, LT1 5.7L |
| 1992-1997 | Chevrolet | Corvette | LT1 5.7L |
| 1996-2002 | Chevrolet | C/K 1500/2500/3500 Pickup | 5.7L Vortec L31 |
| 1996-2002 | Chevrolet | Express Van 1500/2500/3500 | 5.7L Vortec |
| 1996-2002 | GMC | C/K 1500/2500/3500 Pickup | 5.7L Vortec |
| 1958-2004 | Chevrolet | Small Block Gen I/II (262-400cid) | Edelbrock, LT-AFR 23° Heads |
Why Choose ARP?
- Decades of motorsports heritage supplying Pro Stock and NASCAR teams
- Every bolt precision-forged and thread-rolled for consistent performance
- Made in USA with rigorous quality controls for engine builder confidence
Frequently Asked Questions
-
Q: Which Chevrolet engines and heads does this kit fit?
A: Designed for 23° cast iron OEM heads on SBC 350, Gen III Vortec/Truck 5.7L heads (1996-2002), most Edelbrock 23° heads, and Airflow Research LT heads on 1987-2002 small blocks -
Q: What material and finish are used?
A: 8740 chromoly steel heat-treated to 180,000 PSI with black oxide finish for durability and rust protection -
Q: Does it include torque specs or warranty?
A: Kit includes detailed instructions with torque sequence. ARP provides manufacturer defect coverage when installed per guidelines
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Compact protective box measuring 7 x 5 x 2 inches
- Weight: 1.6 lbs
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