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Block weight comparison?

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Old 03-17-2003, 09:27 AM
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Default Block weight comparison?

What is the difference in block weight between the 5.7L LS1 aluminum block and the 6.0L iron block?
Old 03-17-2003, 09:36 AM
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Default Re: Block weight comparison?

I think someone mention like 75# before...
Old 03-17-2003, 09:55 AM
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Default Re: Block weight comparison?

It is 100#. I own both.

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Old 03-17-2003, 10:23 PM
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Default Re: Block weight comparison?

Cool, thanks.
Old 03-17-2003, 10:32 PM
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Default Re: Block weight comparison?

I always heard it was about 85lbs but the gentleman who says 100lbs sounds like he may have direct knowledge. Well worth the extra strength/durability to me. That's why i did it, not to mention its at least $1,000.00 cheaper.

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Old 03-18-2003, 02:38 PM
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Default Re: Block weight comparison?

I agree with MTI 427 Roadster, the extra 92lbs isn't as important to me as strength and durabliity. I just hope going from 346CI to 370CI will justify the weight difference. But then again if it doesn't I can spray the heck out of it! <img border="0" alt="[driving]" title="" src="graemlins/gr_driving3.gif" />
Old 03-19-2003, 12:21 AM
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Default Re: Block weight comparison?

In the GM LS1 Service manual it states a 183lbs weight for the 6.0L block and a 91lbs weight for the LS1 block.

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Old 03-19-2003, 12:28 AM
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Default Re: Block weight comparison?

I wonder what a resleeved block weighs....The darton sleeves are bigger than the stock sleeves, so I'm assuming it weighs more than a stock block. I wonder how much though.
Old 02-11-2008, 10:30 PM
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good look'n out on this thread
Old 02-11-2008, 10:47 PM
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Wow - back from the dead!

I guess that is proof that the search works.





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