Pushrod Length Checker 6.80" to 7.80" Push Rod 7702-1 Fit for LS1 LS2 LS6 LSXDescription Save yourself a lot of guess work to properly figure out what pushrod size you need for your engine build. Comparable to Comp Cams Part #7702 1 Pushrod Length Checkers are crafted from a steel alloy with black oxide coating for years of accurate measurements. Specification Having the correct pushrods in your engine is a critical factor in proper rocker arm geometry, and this is the best tool to measure pushrod length (it reads like a