Loading... Please wait...These Pro series studs from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining and are rated at a whopping 190,000 psi. The Pro series kits are also available with 12-point nuts, and all kits come complete with hardened parallel washers for an even load distribution and accurate torque readings.
Great upgrade for your 4.0 or 4.6 as the stock head bolts are stretch bolts, made for one time use.
Work with your 3.5 3.9 4.0. 4.2 4.6 or 4.9
We use these on all our High performance motor builds. Good for any high compression builds also. Overkill for just a stock rebuild.
| Fastener Style | Stud | |
| Head Style | 12-point | |
| Fastener Material | 8740 chromemoly | |
| Fastener Finish | Black oxide | |
| Washers Included | Yes | |
| Cut to Fit | No | |
| Quantity | Sold as a kit. |
*Picture not depict actual item