5.3 heads
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i have a t-rex with stock (ported) 853's, would switching to a set of 5.3 hand ported heads help me any?... , would it up my compression much?
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It will up the compression if your current heads aren't milled, but I can't say if they will give you any power or not. You will most likely have to flycut the pistons with a t-rex.
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are the rocker arm stands the exact same as the ls1/6 heads?.. will i have to run a different pushrod or anythign like that'??....i have crane duals with the machines seats ect.
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you're going to have to do some serious fly cutting with that cam, and 5.3 heads WILL up the compression to ~11:1. read about PRC's 5.3's on TSP's website....