Howards Single Spring/Damper Valve Spring Kit - 348 lb/in Rate - 1.150" Coil Bind - 1.514" OD - Steel Cups/Locks/Retainers H763CB3M Original 6 bolt pattern

Original 6 bolt pattern

lightweight comfortable underwear

Supports up to 575 horsepower

The Momentum GT intake system outflowed the factory intake by 35% and produced 12 additional horsepower and 15 lbs

Howards Single Spring/Damper Valve Spring Kit - 348 lb/in Rate - 1.150" Coil Bind - 1.514" OD - Steel Cups/Locks/Retainers H763CB3M Original 6 bolt patternProduct Description: Valve Spring Kit Dual Spring Damper 348 lb in Rate 1. 150 in Coil Bind 1. 514 in OD Locks Chromoly Retainers 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