For use on ALL Chevrolet LS and LT Series V8 Engines: 1997-Current (Gen 3/4/5 small block chevy engines) Including 99-current 4.8L, 5.3L, 6.0L, 6.2L Vortec Chevy Truck Engines
Compatible with ALL Chevrolet Gen 1 & 2 Small Block Engines 265, 283, 305, 307, 327, 350, 366, 383, 400
Compatible with ALL Chevrolet Big Block Engines 396, 402, 409, 427, 454, 472, 502
Includes 4x long bolts, 4x short bolts and 4x washers
Made of 10.9 grade zinc-coated hardened steel
Long bolt measures 3/8-16 x 3.94" - Short bolt measures 3/8-16 x 3.15" - Washers measure 0.15" thick x 1" wide