Howards Zero Tolerance Single Racing Valve Springs w/ Damper - 1.265" O.D. - .878" I.D. RS00400306 result in crank rotation measurements

result in crank rotation measurements that are accurate to ┬╝ of a degree from 0 to 13

79 in Long

E40D / 4R100

while maintaining a mellow tone during Stealth mode

Howards Zero Tolerance Single Racing Valve Springs w/ Damper - 1.265" O.D. - .878" I.D. RS00400306 result in crank rotation measurementsEngineered 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