What length pushrods do I need???

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Aug 24, 2004 | 11:09 PM

YOOFORMULA

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From: Wisconsin

What length pushrods do I need???

I had my stock LS1 heads hand ported rather extensivley(did not mill heads), put some Patriot dual springs, Comp cams oem replacement lifters, still the ole Hotcam and LS6 valves. Can I still use the 7.400 hardened pushrods I have or do I need something shorter? Thanks!

Last edited by YOOFORMULA; Aug 24, 2004 at 11:15 PM.

Aug 24, 2004 | 11:53 PM

technical

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From: Fat Chance Hotel

Same cam, same head height, same pushrods. If they worked before, they'll work now.

Aug 25, 2004 | 07:44 AM

YOOFORMULA

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Even if the valves are longer in length? This is the only thing i can think of thats causing the chattering I am hearing once the motor gets warm.

Aug 25, 2004 | 07:55 AM

PREDATOR-Z

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From: BFE

Quote:

Originally Posted by YOOFORMULA

Even if the valves are longer in length? This is the only thing i can think of thats causing the chattering I am hearing once the motor gets warm.

LS6 valves are longer because the LS6 cam has smaller centerlines.
So to cure your chattering you need 7.35 p-rods. right now you have too much preload and your lifters are bottoming out. (Could collapse)
Hope this helps.