Ferrea Single Valve Spring - 17-21 Honda Civic Type-R K20C1 - Set of 16 (Req Roller Rockers) - S10166 Valve Spring Locators 1987:Jeep:Cherokee:Limited

1987:Jeep:Cherokee:Limited

If you're refreshing your engine

2019:Arctic Cat:ZR 8000 Sno Pro ES 129:Base

Water/methanol injection for forced induction (turbocharged or supercharged) gas-powered race engines is a proven means for effectively reducing engine inlet air temperatures and suppressing harmful detonation

1993:Toyota:T100:SR5

Ferrea Single Valve Spring - 17-21 Honda Civic Type-R K20C1 - Set of 16 (Req Roller Rockers) - S10166 Valve Spring Locators 1987:Jeep:Cherokee:LimitedHarmonics or high frequency fatigue is present in all racing engines and will usually destroy the valvetrain if not controlled. Properly designed valve springs will control the dominant harmonics, provide the needed stability, and reduce valvetrain component wear. Ferrea valve springs are developed from high strength alloys, including premium grade chrome silicon steel. Our springs are heat treated and stress relieved, which dramatically increases the