Howards Dual Valve Spring Kit - 413 lb. - 1.100 in Coil Bind - 1.500 in OD - Locks / Chromoly Retainers WIL140-11401-DR Length listed is overall length

Length listed is overall length

Smaller Housing With Improved Efficiency

Increased velocity by 5-10% for impact testing on the 2nd hit across all shell sizes

Fel-Pro performance intake manifold gaskets and Fel-Pro solid-core intake manifold gaskets

This single tube design helps operating temperatures stay cooler under extreme conditions

Howards Dual Valve Spring Kit - 413 lb. - 1.100 in Coil Bind - 1.500 in OD - Locks / Chromoly Retainers WIL140-11401-DR Length listed is overall lengthProduct Description: Valve Spring Kit Dual Spring 413 lb in Spring Rate 1. 100 in Coil Bind 1. 500 in OD Locks Chromoly Retainers From the humble beginnings of Howards to an industry leader today, Howards Cams has not forgotten the customer from the novice to the most sophisticated race teams. Howards Cams main objective is to produce the highest quality product at a reasonable price. The name Howards Cams has been synonymous with high performance