Howards Performance Hydraulic Roller Dual Valve Springs - 300 lb/in - 1.437 OD H775C30XXL Centerforce brings together high-quality friction

Centerforce brings together high-quality friction materials and patented processes to give you top-of-the-line discs

plexiglass chamber sealing plate and complete instructions

Famed racers such as Bill "Grumpy" Jenkins

1967 Oldsmobile Cutlass Supreme CID 294 4

Howards Performance Hydraulic Roller Dual Valve Springs - 300 lb/in - 1.437 OD H775C30XXL Centerforce brings together high-quality frictionProduct Description: Valve Spring Dual Spring Damper 300 lb in Spring Rate 1. 125 in Coil Bind 1. 437 in OD Set 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,