5.3L block same as ls1? what is max C.I. out of one?
01-03-2008, 11:42 AM
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01-04-2008, 11:44 AM
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ok so it is a smaller block then....i was wanting to see how big i could make it and put it in the camaro. but i think ill just use the heads then
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01-04-2008, 07:09 PM
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the crank on a 5.3 has a bigger Rear Main than the ls1 
Ls1 crank
truck crank
it might be hard to tell but the truck crank is like a half inch bigger than the LS1 crank
Ls1 crank
truck crank
it might be hard to tell but the truck crank is like a half inch bigger than the LS1 crank
01-05-2008, 03:42 PM
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i got a 5.3 motor that has 86k on it and im just wondering if i should (or can) build a 383 and put it in my camaro? its a complete engine...came out of a suburban. or should i just have the heads reworked and port the throttle body and put them on my car?
01-06-2008, 01:05 PM
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if you want to stroke an iron block, find a 6.0. they are cheaper, way almost the same, and have way more cubes. if you want to stroke a smaller cube engine, then go with a 5.7 block. the lighter engine would be great stroked with some 5.3 heads.
