Stock-height basic engine is direct bolt in replacement for aging 80" H-D Evolution engines. Does not include carb or ignition; use stock or aftermarket carburetor and air cleaner. 508 cam. Forged rocker arms. 585 valve springs. Flat top cast pistons. S&S standard oil pump. S&S performance replacement heads. 3-1/2" bore x 4-1/4" stroke. 8.4:1 compression ratio. Wrinkle black finish.
