Howards Max Effort„¢ Dual Roller Valve Springs w/ Damper - 1.540" O.D., .750" I.D. 492090 Lowers your 1967-1972 GM A-body

Lowers your 1967-1972 GM A-body 2-inch

426 Wedge and 440

DO NOT apply directly to exhaust components

906 in Holes

Can also be worn under face mask for added protection of head and neck

Howards Max Effort„¢ Dual Roller Valve Springs w/ Damper - 1.540" O.D., .750" I.D. 492090 Lowers your 1967-1972 GM A-bodyHowardsCams competition racing valve springs are CNC coiled and heat treated in the finest facilities available. Using only the highest quality valve spring wire, all Howards? valve springs are stress relieved, ground and shot peened to offer our customers some of the very best valve springs on the market. Whether you're running a flat tappet or roller cam in your drag race, circle track, road course, performance marine or other extreme race