Chevy GM LS1 1.7 Ratio Stainless Steel Roller Rocker Arm Set Stud Mount These Speedmaster connecting rod bearings

These Speedmaster connecting rod bearings are just what you need to freshen up your engine

you can get 25 to 50 HP from these Proform main bodies

Failure or poor performance from a coil can result in a misfire

it permits the direct bolt-on of any 4

Chevy GM LS1 1.7 Ratio Stainless Steel Roller Rocker Arm Set Stud Mount These Speedmaster connecting rod bearingsSpeedmaster Stainless steel rollers are manufactured from heat treated stainless steel and alloy steel tip rollers. Speedmaster roller rockers are available in various ratios, so you are good to go. They feature greater strength and durability, capable of withstanding valve spring load up to 600lbs.