ARP Chevrolet LSA 12pt Head Stud Kit

This ARP performance fastener, stud, bolt, tool, or assembly is the Chevrolet LSA 12pt Head Stud Kit for 2009-2015 Cadillac CTS. Confirm the exact engine or vehicle application, thread size, length, material, strength series, included quantity, installation lubricant, tightening sequence, and current ARP torque specification before ordering.

Key Features

• 8740 Chromoly Construction: Heat-treated steel provides 190,000 PSI strength for extreme boost and cylinder pressures.
• 12-Point Nuts and Hardened Washers: Included matched hardware simplifies installation and secures even load.
• Forged 8740 chromoly steel heat-treated to 190,000 PSI with rolled threads for fatigue resistance.
• Stud Design: Minimizes block thread damage while delivering repeatable torque values across heat cycles.
• Pro Series Engineering: Built for high-horsepower LSA applications in drag racing and daily driving.
• 8740 alloy steel exceeds factory bolt strength by 25 percent.

Fitment

Specifications

What’s Included

One new ARP head stud & bolt kit in the exact configuration and quantity identified by this listing. Brackets, wiring, air lines, fittings, switches, fasteners, fitting kits, fluids, covers, and accessories are included only when expressly stated for this exact part.

About ARP

Automotive Racing Products manufactures high-performance studs, bolts, nuts, washers, wheel hardware, assembly tools, and installation lubricants for engine, drivetrain, chassis, and racing applications. Thread dimensions, material, preload method, lubricant, torque, and included quantity remain exact-part specific.

Important Disclosures

• California Proposition 65 warning applies. Review the current manufacturer warning before handling or installation.

Related Parts

• Shop all ARP products
• ARP SB Chevy GEN III/IV LSX 12pt Head Stud Kit
• ARP SB Chevy LS 03 and Earlier Head Stud Kit
• ARP SB Chevy LS1/LS6 5.7L/6.8L Hex Head Bolt Kit

Frequently Asked Questions

How do I confirm the Chevrolet LSA 12pt Head Stud Kit fits my application?
Match the exact engine family or vehicle, component location, thread diameter and pitch, under-head length, material, strength series, and every current ARP application note.

Can I reuse the factory torque value with this ARP hardware?
Not automatically. Use ARP’s current instructions for the exact part, material, lubricant, tightening sequence, and preload method. Factory torque values may be based on different hardware and friction.

What is included with this ARP kit?
Only the studs, bolts, nuts, washers, lubricant, and tools expressly listed for this exact part number are included. Verify the required quantity before disassembly.

Installation Instructions

1. Confirm ARP part number 234-4346, the complete application, and every required supporting component before beginning work.
2. Clean and inspect all mating threads and components, then verify thread engagement, length, washers, nuts, lubricant, and required preparation before assembly.
3. Follow ARP’s current tightening sequence, lubricant instructions, torque or stretch method, and any retorque procedure for this exact part.
4. Verify clearance, preload, fastener seating, and normal component operation before returning the vehicle or engine to service.