600Drop In Beehive Valve Springs & 7.400 5/16 Chrome Pushrods LS1 LS2 LS3 LS6
Package contains: 16 x Drop-In Beehive Valve Springs 16 x Pushrods 1218 Drop-In Beehive Valve Spring Kit for all LS Engines. 600 Lift Rated The 1218 Spring Kit is a drop-in high performance spring kit for all OE LS cylinder heads and is rated for up to. This spring kit uses all OE hardware, including seats, retainers, and locks and is 100% drop-in. The 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. Coil Bind Height (in): 1.140 in. Damper Spring Included: No Install Load: 130lbs Install Height: 1.800″ Open Height: 1.175″ Open Load: 318 lbs Spring Rate (lbs/in): 313 lbs. Inside Diameter of Outer Spring (in): 0.885 in. Valve Spring Style: Beehive These one piece precision formed pushrods are constructed from SAE 4130 chromoly tubing, centerless ground to exacting tolerances, and case hardened to RC60. 7.400 is the standard LS length, but any of the following can affect pushrod length required and each application may be different. Cylinder Head Deck Thickness Block Deck Height Valve Stem Length Rocker Arm Brand Cam Shaft Base Circle Diameter Lifter Design, Etc. We highly recommend that you measure you particular application to determine correct pushrod length due to the number of variables involved. We cannot recommend a length based strictly on combination and the only way to determine required length is to measure appropriately.
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