COMP Cams Valve Seals - Positive Stop Teflon - .530" Guide - 5/16" - (Set of 16) 28120BK Spring Cup O

Spring Cup O

1965-1991 Buick Riviera

Their optimized winding

Clutches / Bands / Filter / Gaskets / Seals

Reinforced Toe / Heel

COMP Cams Valve Seals - Positive Stop Teflon - .530" Guide - 5/16" - (Set of 16) 28120BK Spring Cup OCOMP's Positive Stop PTFE valve seals offer more clearance for dual springs with better sealing than O ring or umbrella seals. These 500 seals have a . 630" outer diameter and fit applications with 5 16" valves and . 530" OD valve guides. The COMP Cams philosophy has never changed: make the highest performing products possible and lead the industry in technological development. One thing COMP Cams has never forgotten: Performance is defined by what