ITEM NAME:fit for Small Block Chevy 5.7L 305 350 400 Crankshaft Turning Socket Tool V8 New fit for Small Block Chevy 5.7L 305 350 400 Crank Crankshaft Turning Socket Tool V8 SPECIFICATIONS.(Item included: 1 x Crankshaft Turning Socket Tool. 5) Rotates the crankshaft the proper way, when the balancer is off. 6) Fits 1. Compatible With: fit for Small Big Block Chevy Engines 1965-1992. 7) Use with Breaker Bar or Drive Ratchet.