For Chevy or Ford V8 engines. Easily attaches to the balancer. Useful when assembling an engine or degreeing the cam. Then the crankshaft can be rotated with a 1/2" breaker bar or a 1" socket and breaker barProform Great for Engine Assembly or Camshaft Degreeing 66782Specifications: Feature/Benefit For Chevy or Ford V8 engines. Applications Chevy & Ford Engines Category Rotation Adapter Make Ford Description_ABR Engine Tool Description_SHO Rotation Adapter Description_INV Engine Rotation Adapter Description_INV Chevy/Ford V8 Description_DEF Engine Builder Rotation Adapter Tool Description_ASC Engine Rotation Adapter Tool Description_ASC Fits Chevy/Ford V8 Engines Description_LAB Engine Rotation Adapter Tool Description_LAB Fits Chevy/Ford V8 Engines Description_DES Engine Rotation Adapter Tool Description_DES Fits Chevy/Ford V8 Engines Description_EXT Engine Rotation Adapter Tool Description_EXT For Chevy V8 and Ford V8 Engines Description_EXT Made from Stainless Steel Material Description_EXT Bolts to Harmonic Balancer Description_EXT Uses 1/2 Inch Breaker Bar or a 1 Inch Socket to Turn Crankshaft Description_EXT Great for Engine Assembly or Camshaft Degreeing Description_MKT For Chevy or Ford V8 engines. Easily attaches to the balancer. Useful when assembling an engine or degreeing the cam. Then the crankshaft can be rotated with a 1/2" breaker bar or a 1" socket and breaker bar