Howards Performance Single Racing Valve Springs w/ Damper - 1.510" O.D. - 1.110" I.D. Cylinder Heads & Components 640" outside diameter and

640" outside diameter and

Heavy wall mounting tubes supporting the mount hardware

features our patented pending filter-to-housing interface

Whether you want to install a new inline fuel pump

Howards Performance Single Racing Valve Springs w/ Damper - 1.510" O.D. - 1.110" I.D. Cylinder Heads & Components 640" outside diameter andEngineered for racing use, springs are precisely coiled and undergo precision heat treating. Sold in sets of 16. The name Howards Cams has been synonymous with high performance camshafts since the 1950s. Howards Cams have always used on track experience to design the most powerful designs. This includes early Top Fuel favorites driven by Jack Chrisman and Larry Dixon Sr. Today we have even a greater group of experienced racers in Circle Track, Drag