rocker arm question
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rocker arm question We run a dirt track car its under 400hp. its 40 over 350. we run 487x heads. will rocker arms from a 5.3 work on this application. we have roller tips with screw in studs. and what bare the ratios on the ls rocker arms. these are pre 80"s heads
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Factory rocker ratio for 5.3 is 1.7 and then for the larger engines ratio goes to 1.8
the diameter of your screw in studs (3/8)?(7/16) are to big to slide these rockers on.
And then I would wonder if the different valve angle would play a part in all this.
You might can get them to work, but it is not going to be just a bolt on. Personally I would just use an aftermarket 1.6 rocker that is designed for your heads. Good Luck
the diameter of your screw in studs (3/8)?(7/16) are to big to slide these rockers on.
And then I would wonder if the different valve angle would play a part in all this.
You might can get them to work, but it is not going to be just a bolt on. Personally I would just use an aftermarket 1.6 rocker that is designed for your heads. Good Luck
I have seen a couple applications where the smaller 8mm valves were used in a SBC head, along with beehive springs, keepers, and retainers from an LS.
