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Old 02-18-2008, 07:38 AM   #361
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Haven't seen this mentioned yet... but the l92/l76 heads/intake will be in the new Pontiac G8... Most of you probably knew that though.

From what I've personally seen, they are the 5364 castings. Don't know that there's any difference between casting number or not... but just sharing my information.
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Old 03-15-2008, 10:45 AM   #362
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So ive read the entire 19 page thread and I know that I can for these heads on the LQ4 block. Im looking for a good streetable motor with plenty of hp and torque. I like the looks of the car intake, but if the truck intake will get me more usable tq why not go with that? What would you fellas suggest?
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Old 03-25-2008, 09:12 PM   #363
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how many inches of vacuum were these flow numbers from?
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Old 07-20-2008, 11:37 AM   #364
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AVG. Fuel economy for L92 in my sierra denali is 16.5 mpg on 93 and 15 MPG on 89. Not Bad.
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Old 08-04-2008, 07:20 PM   #365
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Nice thread!
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Old 08-30-2008, 05:27 PM   #366
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Would ls7 heads gain hp over ls3 or l92?
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Old 08-30-2008, 05:39 PM   #367
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Yes, over stock LS3s, yes a bit over well ported LS3s and yes on hp over well ported LS3s. Maybe little torque over well ported LS3s and they let you use the LS7 intake which is superior to the LS3. Be careful of the 1.8 LS7 intake rockers.
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Old 08-30-2008, 06:15 PM   #368
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1.8 intake rocker? careful why?
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Old 09-28-2008, 02:28 PM   #369
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by any chance dose any one know what the part number for a single main bering cap is for the l92
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Old 09-28-2008, 05:50 PM   #370
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Call SDPARTS.COM, they'll fix you up. Be sure you take the block and new cap to a machine shop and have them align hone the crankshaft centerline assembly so it will be right.
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Old 12-26-2008, 11:08 AM   #371
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New member here... No i dont have an f-body but my boyfriend does and im just trying to learn more about it.

so he has a 95 camaro and awaiting to put an ls3 in it.

i was reading a little and saw that an ls3 and a l92 are kinda the same? Is it true that the ls3 also is from a truck? cuz thats what i was told but then i was reading and kept seeing that its from c6 vette... And whats an ls7?
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Old 05-09-2009, 10:48 PM   #372
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What casting number is Ls3 heads
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Old 05-10-2009, 08:06 AM   #373
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Quote:
Originally Posted by tooshort View Post
What casting number is Ls3 heads
#821 and newer L92s are #823
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Old 11-12-2009, 07:38 PM   #374
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great post! im looking to upgrade to the L92 for my offroad truck.. wonder what the L92 heads CNC ported will do on a 412CI L92 bottom end!
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12590124, block, dilution, engine, exhaust, fits, fuel, gm, l92, ls2, ls3, ls7, manifold, motor, number, oil


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