Chevy SBC 350 to 427 CID Forged Short Block Assembled Engine Motor 1000+ HP Speedmaster pulley systems work with

Speedmaster pulley systems work with any type of cylinder head or manifold configuration

Designed for engines producing up to 500hp

The Speedmaster GM LS1/LS2/LS6 Modular Hi-Ram Intake Manifold is introduced as a cost effective alternative to fabricated sheet-metal for high-performance applications where induction system height is not limited

Intake manifold (Dual Plane)

Cast Aluminum Valve Covers

Chevy SBC 350 to 427 CID Forged Short Block Assembled Engine Motor 1000+ HP Speedmaster pulley systems work withSpeedmaster small block 427 c. i. d. short block engines are the solution to a hassle free power build! These combinations start with a reliable Speedmaster 9. 25 in. block for added strength.