is there a difference in lt1 blocks and a regular block?

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11-02-2008, 10:03 PM

z28rob18

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is there a difference in lt1 blocks and a regular block?

lik the title says is there a differenc in the block or is it all in the heads i really need to no this because ive been lookin at shortblocks but if they hav to be lt1 specific then obviously they cant be used.

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11-02-2008, 10:15 PM

ZONES89RS

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The water passages are significant for the LT1, so yes, it must be a LT1 block to use in a LT1 car unless everything is changed.

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11-02-2008, 10:44 PM

z28rob18

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so ur sayin on the lt1 the passages r alot bigger can i hav the ones on a shortblock fixed to work or not worth it?

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11-02-2008, 10:50 PM

fergymoto

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The whole timing cover area and water pump mounting area is different.

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11-03-2008, 12:48 AM

ZONES89RS

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Quote:

Originally Posted by z28rob18

so ur sayin on the lt1 the passages r alot bigger can i hav the ones on a shortblock fixed to work or not worth it?

The passages all together are re routed so the heads get coolant first. Nothing from a conventional SBC will work on the top end without major modification.

With the exception of pushrods, lifters ect.

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