All orders ship Free UPS ground
Orders placed before 3PM CST M-F will be shipped same day.
UPS Red & 2 day available at checkout.
International orders shipped USPS priority mail.
All orders over 1200.00 are shipped signature required (new customers)
All orders with core charge, you must call before item ships.
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 200,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others.
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. Finally, there are factors of easier engine assembly and proper alignment of caps every time.
*Please Note – Head Studs and Main Studs are NOT the same*If you are not sure what you are looking for, please call us for assistance.
The warranty is Limited to one (1) year from the date of sale and
limited solely to the parts contained within the products kits. All
products that are in question of Warranty must be returned prepaid to
the Seller. Dorman products carry a lifetime warranty.
Under no circumstances will the Seller be liable for any labor charged
or travel time incurred in diagnosis for the defects, removal, or
re-installation of this product or any other contingent expenses.
All warranty returns must have an RGA#, YOU MUST CALL TO GET THIS (NO EXCEPTIONS)
No warranty or refund will be issued if unit is not returned to Pensacola Fuel Injection.
Warranty is ONLY valid to original purchaser.
All orders with a core, including PayPal, require that we have a credit card on file (you must call... we cannot get your credit card information from PayPal) on orders with a core value. The credit card on file will not be charged unless the core is not returned within 30 days.