Howards Max Effort Dual Racing Valve Springs - O.D.: 1.470", I.D.: .800" 016438NRSI Installation kit includes a titanium

Installation kit includes a titanium pin kit and strap mounting hardware for quickly changing out a Jacobs Ladder

Black Huggers make performance and style easy for engine swaps

2001-2009 GMC Yukon

Provides Exceptional Performance

higher flowing intake ports

Howards Max Effort Dual Racing Valve Springs - O.D.: 1.470", I.D.: .800" 016438NRSI Installation kit includes a titaniumCoiled 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