Dragkid1917

iTrader: (2)

I was wondering if i could bore out my stock block to a 4.00 or a 4.03 piston size. Does anyone know?

SOMbitch

iTrader: (8)

No, you can't do much more than a light hone on the LS1.

98catfish

iTrader: (13)

Sleeve it then yes you can!

Dragkid1917

iTrader: (2)

wonder how much that costs. Im freshening up the motor, it has 100k on it, and im hearing that i might have to get new 3.905 pistons because of the wear. If im going to have to get new pistons, theres no way im putting the stock size back in.

98catfish

iTrader: (13)

Youd be cheaper to get a stroker shortblock from a vendor.
Even cheaper just get a lq9 shortblock out of a denali/escalade and bolt your heads and intake on and go.

Doug

Dragkid1917

iTrader: (2)

it would be cheaper to buy a forged short block then re- sleeving my motor and buying new pistons?

NemeSS

iTrader: (127)

.005-,.015 max on ls1 5.7 blocks
go and sell that aluminum block and go with lq4 6.0 motor.
4.030 bore 6.0=370ci

Dragkid1917

iTrader: (2)

ahh, im going to just hope that after 100k miles it didnt wear down that much, and i can just put in new rings with a light hone and call it a day. Is that a resonable thought or am i probably going to be faced with new pistons...

98catfish

iTrader: (13)

Go 3.905 and go forged pistons, Then you can throw a couple of hundred horses worth of n2o at it.

Dragkid1917

iTrader: (2)

But do you think that ill be able to get a way without it or do you think that because theres 100k miles that the walls will be worn down to much, and ill have no choice but to go 3.905...

98catfish

iTrader: (13)

W/out measureing the cylinder walls no one can say! if the oil was changed regularly and the car never overheated, Maybe....

ss.slp.ls1

iTrader: (36)

+1. Inspect the block.
Also get a LQ4 shortblock before considering re-sleeving the motor.

b00sted

iTrader: (7)

For the price of re-sleeving, you can buy an LSX block(assuming you buy real sleeves).

As far as boring. .010 hone is about max.

coondog

i recently had mine honed .001 and new pistons for $425.00. They were not forged though.

WheelmanWS6

yup. Fresh hone, new pistons, ringlands, rods, rod bolts, etc. and ur good to go. Stock crank can even handle the power you're putting out.

Resleeving is possible.... but not really worth it.