ARC Racing
42# Dual Valve Spring Kit For 5.5mm Stemmed Valves
Designed for high-lift cams in high RPM engines using stainless steel valves. May be run with outer spring only.
These are extremely heavy duty springs for highly modified applications. Approximately 42lbs at .840 installed height and 80lbs at .275 lift(.620" install height). Will coil bind above .400 lift without spring pocket modification. WILL NOT WORK WITH STOCK VALVES
42# Dual Valve Spring Kit For 5.5mm Stemmed Valves
Designed for high-lift cams in high RPM engines using stainless steel valves. May be run with outer spring only.
These are extremely heavy duty springs for highly modified applications. Approximately 42lbs at .840 installed height and 80lbs at .275 lift(.620" install height). Will coil bind above .400 lift without spring pocket modification. WILL NOT WORK WITH STOCK VALVES