There are many important reasons to use ARP main stud kits for your 4AG/GZE engine build, 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.

Features

• Manufactured from 8740 chrome moly steel
• Heat-treated in-house to 200,000 psi tensile strength
• Precision J-form threads rolled after heat-treat to create a fastener that has threads 1000% stronger than others.
• Made in USA

Fitment

• 85-89 Toyota MR2 AW11
• Any 4A-GE or 4A-GZE engine

What is your return policy?

Midship Garage accepts returns of new products in unused, unopened condition within 15 days for a full refund minus 25% restocking fee and shipping fee.