LS Compstar Forged Steel Crankshaft, AP&31Q-CS, 4.100 Stroke, Wet Sump

Compstar has developed the widest range of LS crankshafts available anywhere. Regardless if your application is road race, marine, circle track, or street/strip, Compstar has the configuration you need. Made from 4340 steel that is deep nitrided for strength and wear ability, every Compstar crank is intended for high output installation. Compstar LS crankshafts are counterweighted for enhanced bearing load distribution, which allows these shafts to withstand both high boost and high RPM applications. Machined with large journal radii, gun drilled with 8 mains, and fully lightened rod journals, the Compstar LSX crankshaft is truly built for performance.