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Weight difference...LS2 vs 6.0L Iron

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Old May 11, 2006 | 12:06 AM
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Default Weight difference...LS2 vs 6.0L Iron
Anyone know the actual weights of each block??

Jason
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Old May 11, 2006 | 12:21 AM
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I am not to the lb but it is between 85-100 lb difference.
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Old May 11, 2006 | 12:43 AM
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So now I gotta figure out if 85lbs is worth like $600-$700. Any other benefits to a aluminum block besides weight?

Jason
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Old May 11, 2006 | 01:23 AM
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Originally Posted by 11secproject
... Any other benefits to a aluminum block besides weight?

Jason
Not really.
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Old May 11, 2006 | 03:54 AM
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I think the weight is actually between 93lbs. & 97 lbs. just stuff I have read.
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Old May 11, 2006 | 11:23 AM
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A couple of years ago Valvegod posted 114 difference...he said he actually weighed them. This was a LS1 block, but I can't think there's much difference in the LS2 and LS1.

GM in their engine repair manual shows about the same.

org
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Old May 11, 2006 | 12:40 PM
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From carrying the blocks around. I swear it has to be in th 100lb +- area. Its feels more than twice as heavy.
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Old May 11, 2006 | 03:02 PM
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Just trying figure out wether its worth paying the extra to save ~100 lbs and to say its all aluminum...hmmm...

Thanks for the info guys.

Jason
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Old May 11, 2006 | 03:04 PM
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I measured it at 93 lbs. 87 lbs for the ls1 and 180 for the iron block.

Nate
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Old May 11, 2006 | 03:18 PM
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Hmm...so what about a forged 4" rotating assembly? vs stock??
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Old May 12, 2006 | 10:17 AM
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Originally Posted by 11secproject
Hmm...so what about a forged 4" rotating assembly? vs stock??
Good point, espcially when you are thinking of rotating mass
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Old May 12, 2006 | 10:37 AM
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I think of it as not just almost 100 lbs which can be had in other places on the car but its almost 100 off the nose which is harder to get I'd think.
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Old May 12, 2006 | 11:09 AM
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Cooloing would also be an advantage to the aluminum block.

FWIW ive also read that the LS2 block was a couple LBS lighter thna the LS1 block.
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Old May 12, 2006 | 11:35 AM
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Well thanks for alll the info. I came across a LS2 block for $800 shipped! So that's what I will be doing...

Jason
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Old May 12, 2006 | 11:51 AM
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I hate reading these threads..... as I prepare to build an iron block motor
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Old May 12, 2006 | 12:18 PM
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I can get you a name and number for the guy w/ the LS2 blocks. Great guy to deal w/ as I have bought a 6.0L iron block from him in the past. I'm actually gonna get the whole rotating assembly from him also.

Eagle crank
Forged rods (Carillo? I think)
Wiseco pistons
Hellfire rings
Fed Mog main/Clevite rod bearings

Looking at $3K shipped for block and rotating assembly...

Jason
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