Order 10 pcs for 20% discount. Discount refunded after purchase.

SIngle valve spring with 65 seat pounds, 130 pounds @ .500 max lift. For use with 33-28.5 stainless steel valves up to 7500 rpm or titanium 1.450-1.200 9500+ rpm. Springs are sold in sets of 4.

NOTE*** never use performance valve springs with stock valves. Stock valve failure is common. Always run a clearance of .060’’ between max lift and coil bind