Comp Cams 3/8 -.050, 10 Deg.Valve Lock w/ Resc. HEST High Quality Material: Nylon is

High Quality Material: Nylon is known for its exceptional strength

Made from Stainless Steel

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CEL reduction – integrated mini-cat spacers cut check-engine lights ≈ 95 % of the time†

Ranger XLT 1995 - 1996 Ford F-350 Special 1982 - 1997 Ford F-350 XL 1982 - 1983 Ford F-350 XLS 1983 - 1997 Ford F-350 XLT 1982 - 1992 Ford F-350 XLT Lariat 2009 - 2010 Ford F-350 Super Duty Cabela's 2008 - 2009 Ford F-350 Super Duty FX4 2004 - 2010 Ford F-350 Super Duty Harley-Davidson Edition 2003 - 2022 Ford F-350 Super Duty King Ranch 2018 - 2022 Ford F-350 Super Duty Limited 2013 - 2022 Ford F-350 Super Duty Platinum 2017 - 2020 Ford F-350 Super Duty XL Plus 1999 - 2022 Ford F-350 Super Duty XL

Comp Cams 3/8 -.050, 10 Deg.Valve Lock w/ Resc. HEST High Quality Material: Nylon isMost people believe that the tang inside a valve lock is what holds the valve spring retainer and spring in place while the engine is running, however tangs are not strong enough to withstand today's open spring loads of 1000+ pounds. The tang's sole purpose is to temporarily locate the lock, retainer, and spring relative to the valve until the taper of the retainer can nest around the outside surface of the lock. This creates the "collet effect" that