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PAC-1218 Drop-In Beehive Valve Spring Kit for all LS Engines - .600" Lift Rated The pictures taken are real, and there will be some color aberration due to strong light, please understand! The PAC-1218 Spring Kit is a drop-in high performance spring kit for all OE LS cylinder heads and is rated for up to .600" lift. This spring kit uses all OE hardware, including seats, retainers, and locks and is 100% drop-in. The PAC-1218s are an ovate beehive spring that has increased loads, rates and frequencies for more aggressive cams. This is a full set of 16 springs. Specs: Number of Springs Per Valve: Single Outside Diameter of Outer Spring (in): 1.290 in. .
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