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Pushrod Length??????

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Old 07-25-2008, 03:43 AM
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Default Pushrod Length??????

hi i have a 5.3 with Ls1 241 heads milled down .060 and stock headgaskets .053 correct me if im wrong on the stock headgasket thickness and a gm Ls1 hot cam what would my push rod length be at with the milled heads, head gaskets and performance cam thank you
Old 07-25-2008, 06:19 AM
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In this application there isn't a generalization you can follow. You will have to setup and check for proper preload to determine PR length.
When I ran 317's milled .050 with .040 gaskets I ended up using 7.300 Comp PR. I still have them, like brand new if you determine that size will work for you. Let me know.
Old 07-25-2008, 07:54 AM
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Originally Posted by veee8
In this application there isn't a generalization you can follow. You will have to setup and check for proper preload to determine PR length.
When I ran 317's milled .050 with .040 gaskets I ended up using 7.300 Comp PR. I still have them, like brand new if you determine that size will work for you. Let me know.
Slightly off topic, but did you have to flycut with that much taken off of the heads and using the thinner gasket? I didn't see what cam you were running at that time either. Just curious.
Old 07-25-2008, 01:20 PM
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Originally Posted by veee8
In this application there isn't a generalization you can follow. You will have to setup and check for proper preload to determine PR length.
When I ran 317's milled .050 with .040 gaskets I ended up using 7.300 Comp PR. I still have them, like brand new if you determine that size will work for you. Let me know.
hey thanks man i have some 7.350 right now but if i need yours i will let you know
Old 07-25-2008, 03:42 PM
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Originally Posted by The Alchemist
Slightly off topic, but did you have to flycut with that much taken off of the heads and using the thinner gasket? I didn't see what cam you were running at that time either. Just curious.
That motor was an LQ4 with dished pistons, cam was a Patriot stage2 226-226 .585 112 lsa. No flycut required.




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