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Old 01-15-2011, 05:55 AM
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fuel pump push rods

i have a 385 fact burn roller motor with a up dated zz385 cam ,will a standered sbc engine push rod work or do i need to buy one

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Old 01-15-2011, 09:01 AM
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A standard pushrod will work. You may want to use a hardened piece though, for longer life, less wear and tear.
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Old 01-15-2011, 09:12 AM
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Quote:
Originally Posted by bigdog7373
A standard pushrod will work. You may want to use a hardened piece though, for longer life, less wear and tear.
X2
It's still a 350 block .

Cole
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Old 01-15-2011, 01:07 PM
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Because it is roller cam you will need a bronze tipped pushrod, a stock rod will not last against the billet steel cam lobe and will put shavings and grit in the motor as it wears.
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Old 01-15-2011, 01:35 PM
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Quote:
Originally Posted by ericnova72
Because it is roller cam you will need a bronze tipped pushrod, a stock rod will not last against the billet steel cam lobe and will put shavings and grit in the motor as it wears.
I didn't think about the roller set-up.


Cole
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Old 01-17-2011, 06:14 AM
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Quote:
Originally Posted by blackchevy3de
i have a 385 fact burn roller motor with a up dated zz385 cam ,will a standered sbc engine push rod work or do i need to buy one
I put the following question to Jegs' tech line a while ago, via email:
Quote:
Regarding the GM Performance 12498772 - GM Performance Parts ZZ383 Engine, the info located http://www.jegs.com/i/GM-Performance...98772/10002/-1
states, “Note: This engine has provisions for a mechanical fuel pump, however the fuel pump pushrod and adapter plate are not included.”

Will a stock Chevy fuel pump pushrod be compatible w/the cam’s material?
I received this answer:
Quote:
Thank you for giving Jegs the opportunity to assist you with your technical question.

A stock Chevy pushrod will work for your engine. We have them if you do not already have one, click here to view on our website. If you have any further questions, please feel free to contact us.

Thanks Again,

Jon Shook
Technical Sales Representative
800-345-4545
ext # 639
Jon.Shook@jegs.com
Now, as long as this "updated" ZZ385 cam of yours is made of the same material as the cam in the ZZ383 engine linked to above, you will be OK w/a stock rod.

I believe there will be no problems- the ZZ383 cam has more lift and duration than the ZZ385 cam, so if there were going to be a different, stronger or harder material used it would be used on the ZZ383 cam.
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Old 01-17-2011, 06:20 AM
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My notes reminded me that I received the answer from Jegs VERY quickly- enough so that it was noted. This deserves mention, IMO.
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Old 01-17-2011, 08:28 AM
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I got conflicting answers when I did my ZZ4 cam. So I used a Howards composite pushrod P/N 94475 from Summit.It is a carbon reinforced, bearing grade polymer. Supposed to be super strong but easy on the cam lobe.
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Old 01-17-2011, 05:11 PM
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This subject i was not %100 on but was wondering about.


Cole
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