When you’re pushing the limits of your 1JZ or 2JZ engine, factory main bolts can’t keep up with the increased stress from high RPM and horsepower. ARP’s Main Stud Kit for the Toyota Supra MKIV and compatible models delivers the strength and reliability needed for serious performance builds.
Crafted from 8740 chrome moly steel and heat-treated to a tensile strength of 190,000 psi, these studs eliminate main cap walk, reduce block thread wear, and ensure your crankshaft stays locked in place. Designed for easier and more consistent torquing than bolts, ARP main studs are the go-to upgrade for racers and tuners building bulletproof bottom ends. Whether you’re street driving or track racing, this kit gives your 2JZ the clamping force it deserves.
- 8740 chrome moly steel ensures extreme strength & durability
- Heat-treated to 190,000 psi tensile strength for max load
- J-form threads rolled after heat treatment for longer life
- Studs provide more consistent torque than factory bolts
- Prevents main cap walk and crankshaft movement at high
- RPM Protects engine block threads during engine builds & reuse
- Includes hardened washers and hex nuts for full installation
- Ideal for 1JZ/2JZ high-horsepower and high-revving engines
Specifications:
- Main Bolt Style: 2-bolt
- Fastener Style: Stud
- Fastener Nut Style: Standard hex
- Works with Windage Tray: No
- Fastener Tensile Strength (psi): 190,000 psi
- Nuts Included: Yes
- Washers Included: Yes
Included:
- (1) ARP Main Stud Kit
- 1993–1998 Toyota Supra TT MK4 (JZA80) 2JZ-GTE, 2JZ-GTE VVTi
- 1993–1998 Toyota Supra NT MK4 (JZA80) 2JZ-GE, 2JZ-GE VVTi
- 1992–2000 Lexus SC300 / Toyota Soarer (Z30) 1JZ-GTE, 1JZ-GTE VVTi, 2JZ-GE
- 2001–2005 Lexus IS300 (XE10) 2JZ-GE
- 1991–1997 Lexus GS300 / Toyota Aristo (S140) 2JZ-GE, 2JZ-GTE (Aristo)
- 1998–2005 Lexus GS300 / Toyota Aristo (S160) 2JZ-GE, 2JZ-GTE VVTi (Aristo)
- Lifetime Warranty
