COMP Cams Conical Valve Spring Kit - 519 lb/in Spring Rate - 1.175" Coil Bind - 1.332" OD - Chromoly Retainer - Mopar Gen III Hemi H76203FL In-Line / In-Tank

In-Line / In-Tank

which is made from 4130 chrome-moly with rolled threads

1961-1967 Dodge W300 Series

They're rated at 170

COMP Cams Conical Valve Spring Kit - 519 lb/in Spring Rate - 1.175" Coil Bind - 1.332" OD - Chromoly Retainer - Mopar Gen III Hemi H76203FL In-Line / In-TankProduct Description: Valve Spring Kit Conical Spring 519 lb in Spring Rate 1. 175 in Coil Bind 1. 332 in OD Chromoly Retainer Mopar Gen III Hemi 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 happens out on the race track. Because no matter what happens on a dyno or in a computer model,