These Proform 1.7 pedestal mount rocker arms for 5.8L Lightning require you to re-use your existing rocker channels.
Reduce friction and unleash horsepower
These Proform pedestal mount extruded aluminum roller rocker arms rid your engine of internal friction. Their race-proven full needle-bearing fulcrum and roller tip not only unleash horsepower, they also lengthen valvetrain component life, and reduce wear and tear on valve stem tips. They're precision-machined to ensure consistency and ratio accuracy.
Rocker Arm Mounting Style: Pedestal
Rocker Arm Ratio: 1.7
Rocker Arm Style: Full roller
Stud Size: 5/16 in.
Shims Included: No
Rocker Arm Material: Aluminum
Rocker Arm Body Style: Standard
Maximum Spring Diameter: 1.500 in.
Rocker Arm Finish: Blue anodized
Quantity: Sold as a set of 16.
Pedestal-mount roller rockers
Pedestal-mount roller rockers are what the 5.8L engine came with from the factory, and what many cam manufac-turers offer in roller form as easy valvetrain upgrades. Pedestal-mount rockers, roller or otherwise, fasten to the cylinder head resting on aluminum pedestals that form a base for the rocker arm to rest upon. The pedestals rest in a sheet metal channel that ties the rockers together in pairs and prevents excessive side-to-side movement of the rocker tip on valve. A long, 5/16-inch cap screw goes through the center of the rocker's fulcrum, through the pedestal, and into the boss on the cylinder head.
Bought my 2002 Lightning new. With exception of my installing a K&N cold air system, my truck remained bone stock for its first 10 years. At 90K miles of reliable driving, I decided to give my truck a...