eric01ss

iTrader: (13)

why do u guys go w/ the 408 iron block instead of the ls1 408 almunium block?

DanZ28

iTrader: (5)

What 408 aluminum block would that be??

eric01ss

iTrader: (13)

it is a ls1 block the kir is from lunati or u can get it from stroker motors in dallas texas

DanZ28

iTrader: (5)

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

eric01ss

iTrader: (13)

they have it check out the kits they also have a 447 and 438 kit

or checkout dallasexports.com

jrp

iTrader: (16)

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

eric01ss

iTrader: (13)

i would rather have the 447 rotating assembly kit

jrp

iTrader: (16)

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.

LS1_PNYTAMR

iTrader: (1)

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

jrp

iTrader: (16)

yes, a hone to 3.905 is no problem. thats what my ls6 block is honed out to actually . and see the FAQ about the ls6 block.

MOTRUBL

the only diffrence between a 383 kit and a 408 kit is bore size. The stoke is the same.