1991 BUICK COMMERCIAL CHASSIS Brands

B&M Shift Improver Kits offer you a quick and affordable way to improve the performance on any stock automatic transmission. The kits eliminate shift overlap and excess wear on clutches and band. You will be able to chose between two stages to fit your individual needs: an RV/Towing stage and a Street/Strip stage.

Key Features:

• Street Warrior Intake Manifold
• Satin Finish
• Fits w/Gen 1 Small Block Chevy Iron Heads
• Power Band Idle-5500 RPM
• Square/Spread Bore
• Low Rise/Dual Plane