Valve Spring Kit - Evolution - Big Twin75081946Caracteristicas: Incorporate an interference double spring design with damper to control harmonics Engineered for maximum performance in severe applications such as high compression and big inch street motors . 600" spring sets are 1. 460" OD and have a pressure of 125 lb. when closed and 275 lb. at . 500" lift; installed height should be 1. 800"; coil bind occurs at 1. 150" Sold in a set of four springs (enough for one engine) Made in the U. S. A.
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product description
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Caracteristicas:
Incorporate an interference double-spring design with damper to control harmonics
Engineered for maximum performance in severe applications such as high compression and big-inch street motors
.600" spring sets are 1.460" OD and have a pressure of 125 lb. when closed and 275 lb. at .500" lift; installed height should be 1.800"; coil bind occurs at 1.150"
Sold in a set of four springs (enough for one engine)