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GM Pushrod Length ?

Old 09-17-2012, 03:34 PM
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Default GM Pushrod Length ?

I'm looking for some standard push rods for my Gen VI 502. Merc part numbers and lengths are as follows:

Intake (part # 852003) 7.67"
Exhaust (part # 852004) 8.63"

I measured my old push rods and the lengths above are correct. When I was looking for the gm performance parts equivalent I found this part number:

12368081 which is the kit for all 454 and 502 crate engines but the lengths listed are not the same:

Intake 7.575"
Exhaust 8.525"

I know there are different ways of measuring the push rods which may explain the difference but are these the correct push rods or do I have to order directly from merc?

Thanks!
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Old 09-17-2012, 08:07 PM
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Originally Posted by jvcobra
I'm looking for some standard push rods for my Gen VI 502. Merc part numbers and lengths are as follows:

Intake (part # 852003) 7.67"
Exhaust (part # 852004) 8.63"

I measured my old push rods and the lengths above are correct. When I was looking for the gm performance parts equivalent I found this part number:

12368081 which is the kit for all 454 and 502 crate engines but the lengths listed are not the same:

Intake 7.575"
Exhaust 8.525"

I know there are different ways of measuring the push rods which may explain the difference but are these the correct push rods or do I have to order directly from merc?

Thanks!
Roller Cam?
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Old 09-17-2012, 08:30 PM
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Let me look tomorrow, I had two sets of brand new take outs.
I know I have one cam, with springs and retainers left if you need a cam.
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Old 09-17-2012, 08:37 PM
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Default fixx

Originally Posted by jvcobra
I'm looking for some standard push rods for my Gen VI 502. Merc part numbers and lengths are as follows:

Intake (part # 852003) 7.67"
Exhaust (part # 852004) 8.63"

I measured my old push rods and the lengths above are correct. When I was looking for the gm performance parts equivalent I found this part number:

12368081 which is the kit for all 454 and 502 crate engines but the lengths listed are not the same:

Intake 7.575"
Exhaust 8.525"

I know there are different ways of measuring the push rods which may explain the difference but are these the correct push rods or do I have to order directly from merc?

Thanks!
after rebuild?? and are the engines stock? did you mill the heads?
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Old 09-18-2012, 08:27 AM
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Yes, Gen VI roller cam. Engine is currently being rebuilt, heads haven't been milled.
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Old 09-26-2012, 11:45 AM
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Yes, the GM Performance pushrod number listed above are the correct length. Got them yesterday and measured them up. Hope this helps someone else.
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Old 09-26-2012, 02:24 PM
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Your almost new intake went out UPS yesterday so you should be seeing it by thurs/fri, Smitty
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