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#1 |
Registered User
Join Date: Nov 2015
Location: Colfax California
Posts: 1,644
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Replacing pushrods
Might have seen my thread on squeaking tapping #8 cylinder. Re-used the old stock pushrods in the new top end rebuild, bad idea
![]() Matt |
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#2 |
Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Re: Replacing pushrods
I may have covered this in a PM, but it might have been someone else, forgive me if I'm repeating myself:
Normally you want the "right" length pushrod. There's no standard except for all-stock parts. Once you change the cam the base circle is different. Lifters could be different, rockers could be different, and so on. Normally you want to verify that the tip of the rocker is riding in the CENTER of the valve stem, and that's what's important. Have you checked? If it's at all off, like it's mostly over on one side of the valve stem, then you need an adjustable pushrod to check for length and order custom pushrods. Sucks, but so does bending and breaking stuff if it turns out you needed them. You haven't gone full roller or anything exotic so you might be spot on fine with the stock lengths, but its worth checking to be sure.
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1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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#3 | |
Registered User
Join Date: Nov 2015
Location: Colfax California
Posts: 1,644
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Re: Replacing pushrods
Quote:
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#4 |
Registered User
Join Date: Dec 2009
Location: bisbee, arizona
Posts: 1,529
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Re: Replacing pushrods
arn't pushrods heatreated at one end? I think the heatreaded end goes toward the rocker arm and guide plate end
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#5 |
Registered User
Join Date: Oct 2008
Location: Marianna Arkansas
Posts: 7,270
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Re: Replacing pushrods
Hard push rods are the heated ones. Just different nomenclature. I don't get to use that word very often.
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#6 |
Registered User
Join Date: Nov 2015
Location: Colfax California
Posts: 1,644
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Re: Replacing pushrods
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