Description PN: TFS-31400510 Small Block Chevy Gen I Accurate valve timing is the key to making horsepower, and these Trick Flow® roller rockers will help you get it. They feature heat-treated CNC-machined bodies, premium needle-bearing fulcrums, roller tips, and a machined relief for improved valve spring clearance. These rockers also include polylocks. STANDARD FEATURES Rocker Arm Mounting Style — Stud Rocker Arm Ratio — 1.5 Rocker Arm Style — Full roller Stud Size — 3/8 in. Shims Included — No Rocker Arm Material — Aluminum Self-Aligning — No Rocker Arm Body Style — Standard Rocker Arm Nut Style — Polylock Slot Width (in) — 0.600 in. Maximum Spring Diameter (in) — 1.630 in. Rocker Arm Finish — Black anodized Quantity Sold as a set of 16.
