408 ls1 stroker kit
I don't know a Lunati 408 kit, just a 383 kit. I think there is a 396 possibly.
Iron block is a 6.0L, 4.0" bore
LS1 Block is a 5.7L, 3.9" bore
Now that the LS2 (6.0L) is available, You can have a 402 aluminum engine
Iron block is a 6.0L, 4.0" bore
LS1 Block is a 5.7L, 3.9" bore
Now that the LS2 (6.0L) is available, You can have a 402 aluminum engine
dan is correct.
w/o resleaving there is no way to get an aluminum 408. and if your going to pay all the money to resleave you might as well go 427
. the iron 408 is just simply more cost effictive. but again as dan stated the ls2 blocks are openning up alot of big possibilities 
408 = 4.030 bore x 4.00 stroke
402 = 4.00 bore x 4.00 stroke
w/o resleaving there is no way to get an aluminum 408. and if your going to pay all the money to resleave you might as well go 427
. the iron 408 is just simply more cost effictive. but again as dan stated the ls2 blocks are openning up alot of big possibilities 408 = 4.030 bore x 4.00 stroke
402 = 4.00 bore x 4.00 stroke
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if you didnt know the ls1's are aluminum block with iron sleaves. they can only take a basic clean up hone. if you want a big bore you'll need to resleeve which entails removing the stock sleeves and having the new bigger bore sleeves pressed in. a fully prepped darton wet sleeve block will run about 2800 bucks.
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u can hone the stock block out to 3.905 tho right for aftermarket pistons with stock crank size correct??? also i think my car has a ls6 block, does that matter.. is an 02 and had the correct #'s on it according to gmhightech
