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PAC Racing - LSX Solid Roller Dual Valve Springs (1238X)
The PAC Racing 1238X is the "big daddy" extreme duty valve spring designed for solid roller camshaft requiring lightweight LSx style valvetrain. This spring is used in very high lift, upper range RPM or forced induction engines. Direct replacement for the other round wire 120x series springs but with more spring rate than even the 1208X for camshafts that have some "big lobes" on them. Will fit most aftermarket cylinder heads with small 1.300" diameter dual spring packages but check the rest of your hardware to be sure. Round wire construction.
DIMENSIONS:1.274” Outside Diameter 0.900" Inside Diameter 0.630" Inside DiameterNo Damper
SPECS: 250# at 1.800” 700# at 1.050” .750” Max Lift Coil Bind: 0.985" 94 grams
PAC 1238x Springs
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NO SEALS ARE INCLUDED IN THIS KIT
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