COMP Cams Valve Spring Locator - Inside - 0.060" Thick - 1.300" OD - 0.570" ID - 0.910" Spring ID - Steel (Set of 16) 4122BU which gives them about 1000%

which gives them about 1000% (that's ten times) better fatigue strength than those studs that are threaded prior to heat-treat (a very common industry practice)

AN-08 size with a 40 micron stainless steel element and black anodize finish

1986-1986 Ford LTD

track-proven inner and outer anti-fatigue Palm-Grip

COMP Cams Valve Spring Locator - Inside - 0.060" Thick - 1.300" OD - 0.570" ID - 0.910" Spring ID - Steel (Set of 16) 4122BU which gives them about 1000%Made from hardened steel, these locators use an inboard locating shoulder to center the seat and hold the spring in place. The 4677 seat's 1. 300" OD works well with our 7228 and 7230 conical springs in applications with a . 570" OD guide. Engine Valve Spring Seat Spring Seats, . 060 X . 570 X . 9 10 X 1. 300The COMP Cams philosophy has never changed: make the highest performing products possible and lead the industry in technological development. One