Howards Max Effort Dual Racing Valve Springs - O.D.: 1.470", I.D.: .800" 016438NRSI Provides Exceptional Performance

Provides Exceptional Performance

Aluminum Spool

Holley Aluminum V-bowls are offered in three different configurations

3 in Mandrel

higher flowing intake ports

Howards Max Effort Dual Racing Valve Springs - O.D.: 1.470", I.D.: .800" 016438NRSI Provides Exceptional PerformanceCoiled and heat treated in the finest facilities available. Howards research and development teams are constantly updating materials and manufacturing techniques, to provide the best possible valve springs. Howards Cams pioneered many valve spring developments since the 1950's, and are still working with the best engineers and race teams to be on the cutting edge of valve spring technology. The name Howards Cams has been synonymous with high