SICKSS/Z28

i have a 4" eagle crank and eagle 6.125" rods out of a 408 can i have them installed in a aluminum block? as long as i buy new rings for the .30 bore pistons?

SSdreamz

iTrader: (3)

someone correct me if im wrong but i dont think you can bore a LS1 alum block .30

SICKSS/Z28

ya i think i have to buy an ls2 block or use other pistons like a 3.905=383 i belive

PREDATOR-Z

You can use the crank and rods but you'll need a piston set to match your bores.
408 is 4.030 bore and LS1 bore is 3.898, slightly bored can be 3.905.

InsaneDomestics

iTrader: (28)

So are you wanting a 408 as well or are you just going to use the parts that came out of the 408? What block do you have or are you getting? If you have and LS1 you cannot do a .030 Bore like SSdreamz said. If your going to get an LS2 then you can do a .030 Bore and still have your 408. Let us know what block you have or which one your gonna get and we can help you out a little more. To go ahead and answer your question Yes you can swap your Crank & Rods over to another LS-Series Engine.

PREDATOR-Z

LS2 would only be a 402 with a light hone.

InsaneDomestics

iTrader: (28)

Right....with a 4.00 Bore. How far can you Bore an Alum LS2? I know on the Iron Block you can do at least .030, Maybe more but I dont know. Can you do .030 on the Alum. LS2?

SweetS10V8

iTrader: (4)

NO, from what I have read it can take a light hone only. About .005".

InsaneDomestics

iTrader: (28)

Ok, so pretty much just like the LS1 (Very Little) I kinda thought that but I wasnt for sure. Thanks!

Fireball

iTrader: (21)

hmmm...guess my .010 overbore LS2 (closer to .012-.013) is no good then

PREDATOR-Z

Would that be considered maximum allowed? How much meat was left on the linings?

Fireball

iTrader: (21)

thats the furthest we're going to take mine...

Jon@Texas-Speed

iTrader: (18)

You can typically get away with up to a 4.020" bore with an LS2 but that is pushing it IMO. (Especially on a power adder build.) We haven't seen an issue at all going 4.010". If you are wanting to go .030 over on a 4" bore, you need to look into a 6.0L iron block. However, there really won't be much of a gain in only .010-.020 of bore size difference. At the point you are buying pistons, get them the smallest the block will clean up at. That way you still have room for clean up down the road and keep the sleeves as thick as possible.

Jon

98Z28CobraKiller

iTrader: (17)

I took my LS2 to 4.035. It ran for a while until I wasted a rod bearing (oiling problem) making a pass. Then it broke the rod and the sleeve in that order.

SICKSS/Z28

i have a 408 rotating assem to use the .30 pistons that came with it my only option is to use an iron block otherwise i have to buy pistons for either a 402 or 383? ls2 block being the 402 and the ls1 block being the 383?

thanks for all the help guys