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L76 engine

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Old Oct 11, 2009 | 02:28 AM
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Default L76 engine

In the l76 engine it has the ls2 block just the block or a short block with pistons,crankshaft and rods

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Old Oct 11, 2009 | 07:26 AM
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The block, crank and rods are the same but not for sure on pistons.
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Old Oct 11, 2009 | 07:37 AM
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Originally Posted by scooter k
The block, crank and rods are the same but not for sure on pistons.
are you sure
some one told me that its ls2 block but crank,rods and piston are different
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Old Oct 11, 2009 | 09:35 AM
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From what I read, the '07 L76 is a 6.0L with the L92 heads with DOD/AFM. I forgot if it has VVT though . Could be wrong.
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Old Oct 11, 2009 | 09:53 AM
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Originally Posted by Jimbo1367
From what I read, the '07 L76 is a 6.0L with the L92 heads with DOD/AFM. I forgot if it has VVT though . Could be wrong.
I know its 6.0L but what I am asking is it has the same ls2 pistons,rods and crankshaft
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Old Oct 11, 2009 | 10:18 AM
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I believe it has dish pistons if it came with a truck manifold. I would assume flat top pistons if it came with a car intake. I know they called the engine in the G8s L76s, but while I was searching for a LY6, the website indicated they offered L76s in 07 trucks. I THINK it might of been the engine before LY6. I recently read in the trucks it had the DOD and they dropped that feature in the car/G8 version.

I did't help any, huh? lol.
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Old Oct 11, 2009 | 01:31 PM
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Pistons are flat top. Blocks are nearly identical to LS2 except for the DOD hardware. I believe the pistons are the same.
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Old Oct 11, 2009 | 01:51 PM
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Originally Posted by Patrick G
Pistons are flat top. Blocks are nearly identical to LS2 except for the DOD hardware. I believe the pistons are the same.
what about crankshaft and rods and about the cam of the ls3 is it the same as ours
but there is one point that I am sure our bore is 3.988 and ls2 is 4.000 how is our pistons are the same so that I am asking
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Old Oct 11, 2009 | 05:23 PM
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I think the pistons are different because of L92 heads and VVT so piston has different intake valve relief. I think block, crank, and rods are the same. DOD hardware on block but same block as LS2. Block part numbers are the same.
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Old Oct 13, 2009 | 03:55 AM
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Originally Posted by Patrick G
Pistons are flat top. Blocks are nearly identical to LS2 except for the DOD hardware. I believe the pistons are the same.
Pat, according to the gents from Oz, the L76 isn't the same bore as the LS2. I think it's 3.988 or something like that.
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Old Oct 14, 2009 | 03:02 AM
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The L76 and LS2 short motors are identical with 4" bores (exception is the crank when it has 24X timing from from an '05). When GM went for the Holden L76 for '06 they added L92/LS3 heads to the LS2 short motor with the L76 car intake and called it an L76 with DOD, and an L98 without DOD.

G8 GT's get the L76.

Truck L76's got VVT as well from '08.

With VVT there is an exhaust valve relief in the pistons as per L92 Truck/L99 Camaro A6.

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Old Dec 2, 2013 | 09:45 PM
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Originally Posted by scooter k
I think the pistons are different because of L92 heads and VVT so piston has different intake valve relief. I think block, crank, and rods are the same. DOD hardware on block but same block as LS2. Block part numbers are the same.
Some l76 came with dish pistons and valve reliefs and others came with flat tips with valve reliefs. Weird stuff gm came up with but I have seen both engines and they're classified as l76.
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Old Dec 2, 2013 | 09:53 PM
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Smaller cam with the L76 as well.
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Old Dec 3, 2013 | 04:12 AM
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L76 has no dish or valve reliefs, just a plain old flat top
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Old Dec 5, 2013 | 10:38 AM
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Some of this information is incorrect. There are l76s with flat tops and l76s with valve reliefs.
The l76 I put in my car came out of an Escalade and indeed has intake and exhaust valve reliefs.
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Old Dec 5, 2013 | 02:27 PM
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DaMaddHatter all L76's in Australia have flat tops with no reliefs. I apologize for misleading information, Just using good old google shows you are correct. Dish with valve reliefs were also available
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Old Dec 6, 2013 | 11:31 AM
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Originally Posted by dvshk
DaMaddHatter all L76's in Australia have flat tops with no reliefs. I apologize for misleading information, Just using good old google shows you are correct. Dish with valve reliefs were also available
It's all good. I just wanted to clarify that there are both. It just depends on what they come out of.
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