Chevy SBC 350 Shaft 1.5 Ratio DNA® Aluminum Roller Rocker Arms Set Featuring thicker walls and more

Featuring thicker walls and more gusseting than any other manufacturer

These Speedmaster billet steel flywheels are fully CNC machined from a high tensile aircraft material billet steel

Switch out your weak and thin factory retainer plates with Speedmaster heavy-duty bearing retainer plates and make your ride a lot safer

Ideally suited for use with Solid / Mechanical flat tappet and Hydraulic Roller Cams

Dual distributor hold downs and Four corner water ports

Chevy SBC 350 Shaft 1.5 Ratio DNA® Aluminum Roller Rocker Arms Set Featuring thicker walls and moreSpeedmaster DNA roller rockers are the toughest and most innovative rockers we've ever made.