Building or rebuilding a Ford 351 Windsor engine with 2-bolt main caps? Don't skimp on the fasteners holding your crankshaft in place. These ARP high-performance main bolts are what the pros use. They're a huge upgrade over stock bolts. Made from forged 8740 chrome moly steel, they're incredibly strong with a tensile strength rating of 180,000 psi – way stronger than standard Grade 8 hardware. A key feature is that the threads are rolled AFTER heat treatment. This process makes them about ten times more resistant to fatigue and failure compared to bolts threaded before heat treat. They also have a generous under-head radius for better stress distribution. The kit (part number 1545003) comes complete with all the necessary bolts and matching parallel-ground, hardened washers. If you're looking for reliability in a performance or high-stress application, these ARP bolts are the gold standard for peace of mind.
