Racing Dual Valve Springs

Insure against valve spring fatigue and breakage and stop that valve float with the best valve springs on the market! Hand checked and magnafluxed for top quality. The Outer spring is 1.246 diameter using .153 wire diameter and the Inner features .910 diameter using .113 wire diameter. Together they will lift .630 and more with coil bind at .800. Valve guide boss must be machined for all dual spring kits.

4037 Racing Dual Valve Springs, Set of 8