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Generation III Internal Engine
Is this a LS6 oil pump?

Generation III Internal Engine 1997-2006 LS1 | LS6

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Is this a LS6 oil pump?

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Old

Jul 30, 2004 | 07:21 PM

#1

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TECH Apprentice

Joined: Jun 2002

Posts: 328

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From: Texas

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Is this a LS6 oil pump?

The # on the back of the pump are 12556436? Has a R 578-3 too.

Bought it and was told ot was a ported brand new ls6 oil pump.

Thanks in advance.

Joe

Old

Jul 30, 2004 | 07:43 PM

#2

TECH Enthusiast

Joined: Jul 2002

Posts: 653

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From: Mannheim, Germany

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I don't think there's a difference between LS6and LS1 oil pumps. I bought an LS6 and I didn't see any difference between stock except the port matching was BETTER on my 98 stocker! (I fixedthat with my dremel though

)

BTW, you might want to try this link out.
Just enter your part number and experience the magic!
https://ls1tech.com/forums/search.php

Last edited by kenkaru; Jul 30, 2004 at 07:51 PM.

Old

Jul 31, 2004 | 12:42 PM

#3

TECH Senior Member

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From: NW Houston, TX

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Quote:

- 1x 2001 Oil Pump - #12563964 (Part # cast into pump is 12556436)

That was taken directly off of JMX's site www.LS1howto.com so it looks likes you have the right stuff.

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12556436, 12563964, difference, gasket, ls1, ls2, ls6, number, oil, oring, pan, part, port, ported, pump

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