Chevy LS1 1.7 Ratio Aluminum Pedestal Mount Roller Rocker Arm Set Black Four corner water ports

Four corner water ports

The Speedmaster shift selector shaft is built with sturdy

Tough nylon fabric is then bonded to the tooth surface for greater wear resistance

They weigh only 2

Speedmaster EFI intake manifolds make it simple to convert competition engines to electronic fuel injection

Chevy LS1 1.7 Ratio Aluminum Pedestal Mount Roller Rocker Arm Set Black Four corner water portsSpeedmaster Aluminum Roller Rockers are extruded from 6061 T6 Aluminum. The larger needle bearing fulcrum can withstand valve spring loads up to 600lbs, while the extruded body has a tensile strength over 60,000 PSI. Ideally suited for use with Solid Mechanical flat tappet and Hydraulic Roller Cams. They feature very precise valve operation, horse power increase of 10 15, increases valve train life dramatically, acceleration is more responsive, oil