Part Number: ARP 208-5404
When rebuilding an engine, there are several stock parts you wont want to reuse. Stock main studs stretch over time, and even more so each time they are re-tightened. Each time they stretch, their clamping abiltiy decreases. If mainstuds stretch, bearings can spin, and possibly even worse. Mainstuds are a low cost item that can mean the difference between your engine lasting, or not. Use ARP mainstuds for your engine build.
