T&D Machine Chevy LS7 Shaft Rocker Arm Kit 1.80/1.80 Ratio R10002M RPM E-Tec heads are dual-drilled

RPM E-Tec heads are dual-drilled and will accept 1987-95 centerbolt and/or 1986 & prior perimeter flange mount valve covers and most stock exhaust manifolds

lifter trays

1977-1986 Chevrolet K20

Every model has easy to read computer etched timing marks

T&D Machine Chevy LS7 Shaft Rocker Arm Kit 1.80/1.80 Ratio R10002M RPM E-Tec heads are dual-drilledProduct Description: Rocker Arm Shaft Mount 1. 80 Ratio Full Roller Aluminum Natural LS7 GM LS Series T&D manufactures rocker arm systems for over 400 cylinder heads and its products have established a reputation for the highest levels of quality, performance and long term reliability. The company works closely with leading engine builders to maintain its position at the forefront of technology. Add to this the fact that unlike some competitors each