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turbo build with L92 engine

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Old 01-01-2010, 12:12 PM
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Default turbo build with L92 engine

i have a 68 pro touring camaro that i wanted to build a turbo motor for i found a used 2007 yukon 6.2 L92 engine i would like to make 600-700 @ wheels if possible. engine price is 3300.00 45,000 miles complete
what kind of issiues i am i going to run into trying to use that engine???
Old 01-01-2010, 08:47 PM
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none, I'm jealous btw
Old 01-02-2010, 04:38 AM
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Originally Posted by IT_SS
none, I'm jealous btw
i dont know about that i heard i will have problems with the way chevy did the lifters or valves to shut cylinders off to save gas is it possible to correct this i see some people are using the heads off the l 92 motors but what about the rest head gaskets,factory cam, compession ratio,rods,crank,heads
does anyone know anything about these motors???
Old 01-02-2010, 10:20 AM
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It may not be as sexy as an L92 but why don't you just find a L33. It's a 5.3 aluminum block engine which has been successfully boosted to the power levels you are looking for and they're cheap...
Old 01-02-2010, 10:42 AM
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Originally Posted by Area 51
It may not be as sexy as an L92 but why don't you just find a L33. It's a 5.3 aluminum block engine which has been successfully boosted to the power levels you are looking for and they're cheap...
+1 on the L33, the LM7 is the iron twin bother and even cheaper
Old 01-02-2010, 05:28 PM
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Originally Posted by Area 51
It may not be as sexy as an L92 but why don't you just find a L33. It's a 5.3 aluminum block engine which has been successfully boosted to the power levels you are looking for and they're cheap...
I say go sexy, bigger is better, its not my money!!!!!
Old 01-02-2010, 05:35 PM
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Originally Posted by tankhunter
i have a 68 pro touring camaro that i wanted to build a turbo motor for i found a used 2007 yukon 6.2 L92 engine i would like to make 600-700 @ wheels if possible. engine price is 3300.00 45,000 miles complete
what kind of issiues i am i going to run into trying to use that engine???
Realy I would stick with the bigger cubbes! U will be able to hitt ur power goals w/less boost and more power off boost! Plus that car will be sweet I say go all out!!!! Sounds like somthing i would build if I had the cash or time good luck keep us posted!!!
Old 01-02-2010, 07:43 PM
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Originally Posted by tankhunter
i dont know about that i heard i will have problems with the way chevy did the lifters or valves to shut cylinders off to save gas is it possible to correct this i see some people are using the heads off the l 92 motors but what about the rest head gaskets,factory cam, compession ratio,rods,crank,heads
does anyone know anything about these motors???
I think all you have to do is replace the lifters and thats it. Check out performancetrucks.net under the GMT900 section.
Old 01-02-2010, 09:11 PM
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that would be awesome if thats all it takes.
Old 01-03-2010, 05:57 PM
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I'm all for bigger but aren't the L92's known for liftin? too thin a deck for boost? I'm under the impression they're great N/A but not so much for boost. just slap some 427 stickers on the fenders and call it good...
Old 01-03-2010, 07:08 PM
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The L92's don't ned much boost to make power, BUT they seem to be prone to gasket failures over about 750rwhp.
I made 737 through a th400 at only 12psi, so if you are looking for 700rwhp as a max you should be ok presuming the shortblock holds.
Forged pistons and rods are a good idea, but many have had stock shortblocks hold at that power for a seasdon or two.

If it were me, I would just get a less expensive regular old 6.0 and use the money you saved for forged internals, because the 6.0 heads hold up a little better anyways.

Good luck!
Old 01-03-2010, 08:16 PM
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Originally Posted by camarols1
The L92's don't ned much boost to make power, BUT they seem to be prone to gasket failures over about 750rwhp.
I made 737 through a th400 at only 12psi, so if you are looking for 700rwhp as a max you should be ok presuming the shortblock holds.
Forged pistons and rods are a good idea, but many have had stock shortblocks hold at that power for a seasdon or two.

If it were me, I would just get a less expensive regular old 6.0 and use the money you saved for forged internals, because the 6.0 heads hold up a little better anyways.

Good luck!
do you mean the truck 6.0 if so what year is the best to use
Old 01-03-2010, 08:26 PM
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Originally Posted by camarols1
The L92's don't ned much boost to make power, BUT they seem to be prone to gasket failures over about 750rwhp.
I made 737 through a th400 at only 12psi, so if you are looking for 700rwhp as a max you should be ok presuming the shortblock holds.
Forged pistons and rods are a good idea, but many have had stock shortblocks hold at that power for a seasdon or two.

If it were me, I would just get a less expensive regular old 6.0 and use the money you saved for forged internals, because the 6.0 heads hold up a little better anyways.

Good luck!
do you mean the truck 6.0 if so what year is the best to use
Old 01-03-2010, 08:43 PM
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Get the truck 6.0 preferbly the 02 or later. The lq4 has 9.4:1 compression and the lq9 has 10.0:1 compression. Pick which one you want. The pistons are the only difference.

98z28cobrakiller has gone 10.08 with a stock lq9 with an 88 mm turbo.

As far as the l92 motor you would have to get rid of the lifters and it is recommended the you change the oil pump because the VVT uses a higher volume oil pump and you won't need that in getting rid of the VVT. The motor will make some decent power under boost. As you can see though it will cost you a little money up front to put that motor in. It would probably be easier to use the lq4 or lq9.



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