Click to zoom in
SKU: 234-4314 | UPC: 672036040802
ARP 2004+ GM Cathedral Port 625+ 12pt Head Stud Kit
ARP 234-4314 head stud kit uses 625+ Inconel alloy for extreme cylinder pressures in LS cathedral port engines. Fits 2004-2007 Cadillac CTS-V and 2004-2006 Pontiac GTO plus compatible GM LS1 LS2 LS6 applications. Provides consistent torque retention and block protection under high boost or nitrous.
Key Features
- Genuine ARP Fasteners: 625+ Inconel construction handles 220,000 psi tensile strength for boosted and high-rpm reliability
- Stud Design: Reduces cylinder block thread damage versus bolts while ensuring even gasket compression
- 12-Point Nuts: Precision rolled threads offer better wrench grip and repeatable torque values
- Matched Hardware: Includes hard washers and lubricant instructions for complete easy assembly
- Versatile Use: Built for street daily drivers track days and drag strip punishment
Product Notes
- Inspect head and block threads before install for optimal performance
- Torque to ARP specs after 100 miles and recheck after heat cycles
- Securely boxed for protection during transit
Installation Notes
- Professional installation recommended.
- Clean all threads and apply ARP Ultra-Torque lubricant as specified
- Follow ARP torque sequence diagram M11 x 1.5 studs at 65-75 ft-lbs dry
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2004-2007 | Cadillac | CTS | V |
| 2004-2006 | Pontiac | GTO | Base |
| 1998-2002 | Chevrolet | Camaro | SS |
| 1998-2002 | Pontiac | Firebird | Trans Am |
| 1999-2007 | Chevrolet | Silverado 1500 | 5.3L |
Why Choose ARP?
- Decades of racing wins from NHRA to endurance series
- Proprietary heat treatment exceeds SAE standards
- Every kit tested for fatigue and pull-out strength
Frequently Asked Questions
-
Q: Does this fit 2006 Pontiac GTO LS2 engine?
A: Yes ARP 234-4314 fits all 2004-2006 GTO LS1 and LS2 cathedral port heads perfectly -
Q: What material are the studs made from?
A: ARP 625+ Inconel alloy rated for extreme boost over 50 psi and high cylinder pressures -
Q: Is there a warranty on this kit?
A: ARP offers limited lifetime warranty against manufacturing defects when installed per instructions
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: ARP branded box 12 x 10 x 2.5 inches
- Weight: 4.65 lbs
ARP Head Studs
ARP head stud kits for internal engine builds are stocked at Black Ops Auto Works. Shop ARP head stud and bolt kits, main stud kits, and rod bolt kits engineered for HEMI, Ford Modular and Coyote, GM LS, Subaru EJ, Honda K and B series, VW/Audi turbo four cylinders, Porsche, BMC, and Renault engines, along with the Ultra-Torque assembly lubricant every kit depends on. Every product is filterable by year, make, model, and engine platform so the correct fastener kit ships the first time. Black Ops Auto Works carries 812 ARP Head Studs SKUs across 8740 chromoly and ARP2000 alloy options. What This Collection Covers ARP head studs replace factory head bolts with precision-machined threaded studs that thread into the block and allow the nut to be torqued concentrically on a stationary fastener, producing more even and repeatable clamping force across the entire head gasket surface than a factory head bolt design. This collection focuses on the internal engine fasteners that hold the ...
View ARP Head Studs Products
Head Components
Cylinder head components and engine internals for performance builds and OE service are stocked at Black Ops Auto Works. Shop complete cylinder heads, head gaskets, head stud and bolt kits, rocker arms, lifters, camshaft and lifter kits, rotating assemblies, and main stud and bolt kits for LS, LT, HEMI 5.7/6.1/6.4, Coyote, Cummins, Powerstroke, VW/Audi turbo, Subaru, Nissan, and import platforms. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 972 Head Components SKUs across component type, engine platform, and bore or gasket specification. What This Collection Covers Head Components groups together the parts that live at and around the cylinder head, the area of the engine most affected by heat, combustion pressure, and clamping load. This includes complete heads, head gaskets, head studs and bolts, rocker arms, lifters, camshaft and lifter kits, main stud and bolt kits, and ro...
View Head Components Products
Head Stud & Bolt Kits
Head Stud and Bolt Kits for LS, Gen III Hemi, Coyote and Ford Modular, Toyota 2JZ, Nissan RB26, Subaru EJ, Honda K-series, Mitsubishi 4G63, VW 1.8T, and Power Stroke applications are stocked at Black Ops Auto Works. Shop ARP head studs, head bolts, L19 studs, Custom Age 625+ studs, Pro Series hardware, cylinder head fasteners, MLS gasket support, and boosted engine hardware for proven street, drag, road course, and high horsepower engine builds. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 199 head stud and bolt SKUs across the fitments and build levels enthusiasts actually use. What Head Stud and Bolt Kits Cover This collection includes cylinder head stud kits, head bolt kits, nuts, washers, and high-strength fastening solutions for stock rebuilds, boosted street engines, race engines, and diesel performance applications. The correct fastener supports reliable head gasket cl...
View Head Stud & Bolt Kits Products