ej1project

i have an ls bottom end bored to 84mm with golden eagle block gaurd, slock sleeves how much horsepower is that good for, im boosting it and shooting for 450whp, would it be better in the long run to get it sleeved and bored again

jdm inc

iTrader: (11)

I would get it sleeved to begin with just to be on the safe side.

GranDaddyPurp

block guards are cosmetic get it sleeved if you can. sleeve always better that way you can make more power and have reliability down the line

bluemr2turbo

In my opinion there's no way that bore will last at your goal power levels. 84mm wayy to much of an overbore, just curious why did you go with so much of a bore?

Zer0_SpeedWorks

iTrader: (1)

^^^I agree...

get yourself a sleeved block...

kyden

you can't bore a stock sleeve ls to 84mm. you'll have to sleeve it.

chewyv

why wouldnt it be better in the long run? im pretty sure if someone offered free sleeving we all would take it! but why dont you prove these guys wrong and run it anyways kekeke

Glove

i didnt even know you could bore an LS to 84... wouldnt that **** be paper thin?

1qwkinline4

Who allowed this? One yes itwould be way to thin, would could cause overheating issues if it was to last some how, because it causesa heat distribution issue.
I think I would rather take my chances with a b20 before I triedsomething like this

E85B18

pretty much paper thin. They will crack at 450whp

Turbo-LS

iTrader: (4)

ls blocks cant be run at 84mm. even all motor with high compression would crack a sleve. there isnt alot of steel material there to begin with taking away up to 84mm pretty much makes it paper thin. FAIL. id give it a couple pulls on a few psi then melt down lol

ej1project

i got the block off my friend who told me this the walls and perfect i guess bc he was only running 8psi at 212whp for only acouple miles before his turbo blew and decided to go another route, the block is .040 over, i know that and he said it was 84mm the stock bore is 81.5 correct? so what would the size be after that i thought it was 84mm, can i get it sleeved and .040 over again so i can run the same pistons? but if thats to thin than i wont but i just want to confirm that .040 over is 84mm

SPOOLINmatt

it will blow, just "when?" is the question.

ej1project

nevermind apparently it would be 82.52mm right?

hickle

81mm for all b series except b20.

ej1project

i see alot of people running 84mm bores on aftermarket sleeves so do they press the old ones out and then bore before the new sleeves go in to allow for a thicker sleeve? so that they can bore the new sleeve to 84 safely?