Howards Cams Valve Spring Kit - Single Spring/Damper - 348 lb./in. Rate - 1.150" Coil Bind - 1.514" OD - Steel Cups/Locks/Retainers Mobile Electronics 9:1 compression and lower gears

9:1 compression and lower gears

Shift Improver Kit for 65-87 TH400 Transmission

14mm Thread -

Slow idle speeds may result in severe cam and lifter wear

Howards Cams Valve Spring Kit - Single Spring/Damper - 348 lb./in. Rate - 1.150" Coil Bind - 1.514" OD - Steel Cups/Locks/Retainers Mobile Electronics 9:1 compression and lower gearsProduct 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