Aluminum Roller-Rocker Arms. Ford SB 1.6 Ratio 3/8 in Stud. Proform Engine Expansion Plug Kit With A 6-3/4 Inch Diameter

With A 6-3/4 Inch Diameter

For Use With a 3/8 inch Drill

Gold Iridite Finish

2-Piece Design

Upgrade your PROFORM or Holley carburetors

Aluminum Roller-Rocker Arms. Ford SB 1.6 Ratio 3/8 in Stud. Proform Engine Expansion Plug Kit With A 6-3/4 Inch DiameterRid your engine of internal friction with roller tipped rocker arms. The race proven full needle bearing, fulcrum and roller tip not only unleash horsepower, they also lengthen valve train component life and reduce wear and tear on valve stem tips. Precision machined to insure consistency and ratio accuracy. 16 extruded aluminum roller rockers and 16 poly locks. Sold as one set. Product Details: Engine Roller Rocker Arm Set 1. 6 Ratio With 3 8 Inch