ARP Toyota 2JZGE/GTE CA625+ Head Stud Kit

This ARP performance fastener, stud, bolt, tool, or assembly is the Toyota 2JZGE/GTE CA625+ Head Stud Kit for 1993-2005 Lexus GS300. 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

• ARP2000 Alloy Construction: Forged from high-tensile 220,000 PSI material for extreme load handling without stretching.
• Stud-Style Design: Minimizes cylinder head rotation and thread wear in aluminum blocks during repeated torque cycles.
• Matched 12-Point Nuts/Washers: Hardened steel components resist galling and simplify precise installation.
• ARP2000 proprietary alloy steel heat-treated to 220,000 PSI tensile strength with black oxide finish for corrosion resistance.
• Precision-Rolled Threads: Ensures maximum thread engagement and accurate torque values for leak-free seals.
• Ships in protective ARP box dimensions 8.5 x 7 x 2.8 inches.

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 Lexus IS300 M12x1.5inch Wheel Studs Kit
• ARP 87-92 Supra MK3 Under Cut Head Stud Kit
• ARP 93-98 Supra/01-05 IS300 2JZGE Head Stud Kit

Frequently Asked Questions

How do I confirm the Toyota 2JZGE/GTE CA625+ 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 203-4301, 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.