Howards Max Effort„¢ Dual Roller Valve Springs w/ Damper - 1.540" O.D., .750" I.D. 492090 Great performance with stock to

Great performance with stock to mild converter

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

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Howards Max Effort„¢ Dual Roller Valve Springs w/ Damper - 1.540" O.D., .750" I.D. 492090 Great performance with stock toHowardsCams 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