what pushrod length??

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Nov 29, 2008 | 01:54 PM

817Borla

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From: Fort Worth Texas

what pushrod length??

i measured my pushrond lenght with Comp Cams Adjustable Pushrod Checker
and got 7.362 intake and 7.382 exhaust with .075 preload. what size should i get?

Nov 29, 2008 | 02:24 PM

vettenuts

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From: Little Rhody

Curious on how you came up with those numbers?

If your measurements are correct, use 7.450" if stock lifters.

Nov 29, 2008 | 09:15 PM

817Borla

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From: Fort Worth Texas

Quote:

Originally Posted by vettenuts

Curious on how you came up with those numbers?

If your measurements are correct, use 7.450" if stock lifters.

i used this guide
https://ls1tech.com/forums/7957678-post2.html

do the numbers sound wrong to you?maybe i did it wrong,
i have the polluter cam and PRC ls6 heads with ls7 lifters

Nov 29, 2008 | 10:36 PM

817Borla

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any help????

Nov 30, 2008 | 07:59 AM

vettenuts

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From: Little Rhody

OK, just wanted to make sure you were counting turns and not measuring as the measurements are not the same. If you numbers above are as measured (not including preload), I would go 7.450" as previously suggested if you are running stock/Gm lifters.

Nov 30, 2008 | 12:14 PM

willyfastz

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Is the above measurements with preload or without?

Nov 30, 2008 | 12:54 PM

PREDATOR-Z

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From: BFE

Quote:

Originally Posted by 817Borla

i measured my pushrond lenght with Comp Cams Adjustable Pushrod Checker
and got 7.362 intake and 7.382 exhaust with .075 preload. what size should i get?

If those measurements are correct, then 7.375 pushrod.
That will then give you:

7.375-7.362= .013 variance
add to .075 preload> .075+.013= .088 Intake preload

7.375-7.382= -(.007)
Add that to preload> .075 + (-.007)= .068 Exhaust preload

both fit in the desired range

Is this a cam only swap?