do i need poly locks on intake and exhaust valves? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 04-19-2003, 05:16 PM
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Post do i need poly locks on intake and exhaust valves?

I have a 355 with a solid cam 498 lift. I run a dirt track hobby stock class and turn 5800 rpms. Last race i had 2 intake rocker arm nut back off. I have 8 poly locks sitting on the shelf and i was wondering if intake valves give more trouble than exhaust.
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Old 04-19-2003, 06:00 PM
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They both will give trouble with the regular nuts.
You should put all lock nuts in the rockers especilly if you race. Or you can put After Lock on after you adjust them. Its made by locktite and you put a drop on each stud and nut, it penetrate's into the thread's and works just like regular locktite after it set's up.
It's not worth the damage a loose rocker can do.
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