LS1 GOLD RACE ALM. R/A'S 1.7 RATIO 3/8'' STUD
CRANE 144750A-16

LS1 GOLD RACE ALM. R/A'S 1.7 RATIO 3/8'' STUD

Gold Race Extruded Aluminum Roller Rocker Arms for LS1/LS6

These is the rocker arms only....

Crane Cams Gold-Race, full-roller aluminum rockers for the LS1/LS6 engine family add up to 20 horsepower over stock! These rockers were designed for quiet operation and do not trigger the stock GM "Knock Sensor", which retards spark advance and reduces power output! They feature the exclusive Crane "Quick-Lift" design, which moves the valve off its seat quicker, initiating flow into the combustion chamber earlier, thereby increasing port efficiency and horsepower output!