Chevy LS1 1.7 Ratio Aluminum Pedestal Mount Roller Rocker Arm Set Black They feature extra-thick steel that's

They feature extra-thick steel that's double-welded to the ring gear for added strength

Spacer can be reused if disassembly of the carrier is required

or larger wheels to clear them

Manufactured from cast aluminum

Speedmasterª EFI systems give you everything you need to add powerful and efficient fuel injection to your vehicle

Chevy LS1 1.7 Ratio Aluminum Pedestal Mount Roller Rocker Arm Set Black They feature extra-thick steel that'sSpeedmaster 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