Don't waste time trying to figure out which parts you need to get the performance you want--Trick Flow® has already done the work for you! These GenX® Top-End engine kits for GM LS1 are designed and dyno-tested to deliver the performance you want for less than the cost of purchasing the parts separately. Each kit includes: * Pair of Trick Flow® GenX® street/strip cylinder heads * Specially matched hydraulic roller cam * Roller rocker arms * Pushrods * Head gaskets * Head bolts * Exhaust gaskets * Balancer bolt

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