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SKU: 234-4345 | UPC: 672036047696
ARP Cylinder Head Stud Kit for Chevrolet Small Block Chevy 2004 & Later
ARP Pro Series cylinder head stud kit 234-4345 provides strong clamping for Small Block Chevy engines 2004 and later including LS cathedral port applications in Chevrolet trucks cars and performance builds. These studs use 8740 chrome moly material heat-treated to 190000 PSI for dependable head sealing under high cylinder pressures. Professional engine builders choose this kit for its precision fit that allows gaskets and heads to align perfectly preventing leaks and gasket blowouts.
Key Features
- 8740 Chrome Moly Construction: Heat-treated to 190000 PSI tensile strength for consistent performance in demanding racing and street applications
- Centerless Ground Studs: Ensures concentricity and straightness so cylinder heads and gaskets slide into place without binding
- Post-Heat-Treat Thread Rolling: Delivers 2000% higher fatigue resistance compared to pre-heat-treat threading for long-term durability
- Undercut Stud Design: Equalizes stretch on shorter studs for uniform clamping force that handles head gasket compression
- Black Oxide Finish: Provides corrosion resistance and includes 12-point nuts for secure installation
Product Notes
- Verify engine block and cylinder head compatibility before installation
- Use ARP Ultra-Torque fastener lubricant for accurate torque values
- Packaged in protective ARP box to prevent damage during transit
Installation Notes
- Professional installation recommended.
- Torque studs in sequence to ARP specifications typically 65-75 ft-lbs depending on application
- Requires cathedral port LS heads compatible with stock GM hardware patterns
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2004-2006 | Chevrolet | Silverado 1500 | 4.8L LR4 5.3L LM7/LY5 6.0L LQ4/LQ9 |
| 2004-2006 | GMC | Sierra 1500 | 4.8L LR4 5.3L LM7/LY5 6.0L LQ4/LQ9 |
| 2004-2006 | Pontiac | GTO | 5.7L LS1 6.0L LS2 |
| 2005-2007 | Chevrolet | Corvette | 6.0L LS2 |
| 2007-2009 | Chevrolet | Silverado 1500 Classic | 5.3L LM7 6.0L LQ4/LQ9 |
| 2004-2007 | Chevrolet | Express 2500 | 6.0L LQ4 |
Why Choose ARP?
- Relied on by professional engine builders for all-out competition engines
- Made in USA with premium alloys and exacting manufacturing processes
- Studs feature ARP stamp as guarantee of precision and reliability
Frequently Asked Questions
-
Q: Will this kit fit 2004 and later Chevrolet Small Block Chevy LS engines?
A: Yes it fits 2004+ SB Chevy with cathedral port heads like 4.8L 5.3L 5.7L and 6.0L in Silverado Sierra GTO and Corvette models -
Q: What material and strength rating does it have?
A: Constructed from 8740 chrome moly alloy precisely heat-treated to 190000 PSI with black oxide finish for protection -
Q: What warranty is provided and are special tools needed?
A: ARP warrants against manufacturing defects includes 12-point nuts no special tools beyond torque wrench and ARP lube required
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: ARP box dimensions 7.25 x 7.25 x 2.25 inches
- Weight: 3.68 lbs
ARP
ARP (Automotive Racing Products) is the world’s premier manufacturer of high-strength engine and driveline fasteners—head studs and bolts, main studs, rod bolts, and more—engineered and manufactured in-house from start to finish for race-proven reliability. With vertically integrated processes that include cold heading, machining, heat-treating, thread rolling after heat treat, and rigorous QA, ARP maintains aerospace-level certifications (ISO 9001 and AS9100) and validates every part for repeatable clamp load and fatigue resistance. Signature alloys such as 8740 chromoly, ARP2000, L19, and Custom Age 625+ deliver ultimate tensile strengths up to the super-alloy range, while ARP Ultra-Torque fastener assembly lubricant helps achieve consistent pre-load during installation. From street performance builds to professional motorsport programs, ARP fasteners provide precise fitment, superior metallurgy, and the durability needed to keep engines together at elevated cylinder pressures and...
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