Description
There are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place. The studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 190,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others.
STUDS vs. BOLTS
ARP recommends the use of main studs over bolts whenever possible for several key reasons. First is the ability to obtain more accurate torque readings because studs don’t “twist” into the block. All clamping forces are on one axis. By the same token, there is less force exerted on the block threads, which contributes to improved block life (very critical on aluminum blocks). Finally, there are factors of easier engine assembly and proper alignment of caps every time.
Fitment:
Lexus
93-97 Lexus GS300 3.0 2JZGE
98-05 Lexus GS300 3.0 2JZGE
01-05 Lexus IS300 3.0 2JZGE
92-00 Lexus SC300 3.0 2JZGE
Toyota
93-98 Toyota Supra Non-Turbo 3.0 2JZGE
93-98 Toyota Supra Twin-Turbo 3.0 2JZGTE
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