Generation III Internal Engine 1997-2006 LS1 | LS6
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Old Dec 30, 2006 | 05:15 PM
  #21  
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Originally Posted by wannafbody
I believe the LS4 also has LS6 heads
right.

Originally Posted by blkbird
and it uses the same cylinder head as the Generation III LS6 engine
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Old Dec 30, 2006 | 10:16 PM
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I just put one of these in my Camaro. Bolted right up no problem and the pressure is strong. I got it from Fred Beans for just over $60.
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Old Dec 30, 2006 | 10:25 PM
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Old Jan 5, 2007 | 01:59 PM
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Anyone know the difference between the GM high flow one SDPC has and the LS4? The LS4 is on backorder... SDPC mentioned the highflow one part # 17801830
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Old Jan 5, 2007 | 03:07 PM
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ttt....
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Old Jan 5, 2007 | 03:18 PM
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Originally Posted by Cobra4B
Anyone know the difference between the GM high flow one SDPC has and the LS4? The LS4 is on backorder... SDPC mentioned the highflow one part # 17801830
Jeff@LPE stated the GMPP high volume on is very close to the LS6 one w/ a different seal to up the pressure.

I'm on the hunt for an LS4 or might shell out the extra dough for a melling.
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Old Jan 5, 2007 | 07:47 PM
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Originally Posted by Cobra4B
Anyone know the difference between the GM high flow one SDPC has and the LS4? The LS4 is on backorder... SDPC mentioned the highflow one part # 17801830
So.....this pump is becoming a popular item......
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Old Jan 5, 2007 | 07:55 PM
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It sure does seem to be. Giving it some more thought, I can't see it being on backorder for long since the engine is in production, and no doubt people will need this part for warranty work. It wouldn't look good if a Monte came in for service, but they couldn't give the guy his car for 2 months because an oil pump is on backorder.
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Old Jan 7, 2007 | 11:14 PM
  #29  
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wow, sweet deal....this is the first time i've read about the ls4 having a higher volume pump. Are there pics of how it looks compared to the ls1 one?
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Old Jan 7, 2007 | 11:27 PM
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Originally Posted by Quick Double Nickel
Does it bolt right up to the F-body and Corvette pick-up tubes and use the same o-ring?
The question is important so I will bump it.

Perry
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Old Jan 7, 2007 | 11:40 PM
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^ Yes... externally it is exactly the same... uses factory o-ring and pickup tubes.
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Old Jan 10, 2007 | 09:22 AM
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This forum rocks.
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Old Jan 10, 2007 | 10:08 AM
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Good find.

Beats shelling out $140 for a ported LS6 pump.
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Old Jan 10, 2007 | 10:15 AM
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A little more information on these pumps: 12571885 is the pump not only for LS4 engines from '05-'06, but also for the '05-'06 LH6 engines found in SSR's, Colorado's, and Trailblazer's (and of course their GMC counterparts). GM is, like mentioned, out of stock on this pump currently.

There is another pump that I am being told is equivalent in pressure/volume. It is 12612289 which is found on numerous '07 LS4's, L76's, LC9's, and LH6's. This one is NOT on back-order from GM. We should have another shipment coming in on this pump sometime this week. It is priced similarly to the 12571885 pump.

Give me a call if I can answer any other questions about these or to put in your order!
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Old Jan 10, 2007 | 10:32 AM
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^ Any reason for the change? I just got a 1885 pump in... is there a reason GM changed the pump?
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Old Jan 10, 2007 | 10:41 AM
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Originally Posted by Matt @ SDPC
A little more information on these pumps: 12571885 is the pump not only for LS4 engines from '05-'06, but also for the '05-'06 LH6 engines found in SSR's, Colorado's, and Trailblazer's (and of course their GMC counterparts). GM is, like mentioned, out of stock on this pump currently.

There is another pump that I am being told is equivalent in pressure/volume. It is 12612289 which is found on numerous '07 LS4's, L76's, LC9's, and LH6's. This one is NOT on back-order from GM. We should have another shipment coming in on this pump sometime this week. It is priced similarly to the 12571885 pump.

Give me a call if I can answer any other questions about these or to put in your order!
does the 12612289 pump bolt up like the other LS4 pump?
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Old Jan 10, 2007 | 11:03 AM
  #37  
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Originally Posted by Cchris1109
does the 12612289 pump bolt up like the other LS4 pump?
Yes, down to the same part number on the bolts that mount it.

I am waiting on a callback from a guru at GM. He is getting us more specific information on the pressure and volume differences between the two. I will report back as soon as I hear anything
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Old Jan 10, 2007 | 11:39 AM
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That's great. Now we have two other options besides the LS6. Is the 12612289 about the same price, or cheaper, than the 12571885 pump?

***EDIT: They're the same price on gmpartsdirect website (reference only)***
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Old Jan 10, 2007 | 12:11 PM
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They should be the same price when we get them back on the shelf later this week!
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Old Jan 10, 2007 | 12:28 PM
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subscribing
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