1988montecarloss

iTrader: (6)

okay so i bought a 2000 lq4 without realizing the cranks were longer on the 2000's also, i thought it was just the 99's that had the longer cranks, but anyway i have an ls1 t56 that i was going to put behind it, so what can i do , short of buying an 01-up 6.0 crank to make this work? also could i use a 5.3 crank or would it not be balanced correctly?

if the only solution to this problem is swapping to an 01-up 6.0 crank does anybody have one for sale? haha and when i swap the cranks do i have to replace the bearings? thanks for the help guys

lblevins

iTrader: (4)

I thought the spacer on the end of those cranks would come off with a little persuasion. If you were closer id trade you out but im in Oklahoma.

1988montecarloss

iTrader: (6)

do you know if they all have a spacer? ive read that some have them but i thought some didnt?

lblevins

iTrader: (4)

im not sure but you should see a groove there if its removable

ontarioss

There is no spacer I made the same mistake on a 2000 lq4.

1988montecarloss

iTrader: (6)

damn, thanks for letting me know, do you know if i can get my crank machined down? or do i have to swap them?

lblevins

iTrader: (4)

im not too trusting on the internet but if you send me your crank i'll send you mine. pm me for phone number address etc if you want mines not going to be built till spring so im in no rush im going th350 in my nova so it'll work for me with just a flexplate. =)

bww3588

iTrader: (49)

The long crank will not work with an ls1 t56. Your only options are:

1 Swap cranks
2 use an lt1 t56
3 swap input shafts on the t56

1988montecarloss

iTrader: (6)

will do, ill PM you in the morning

Bilster

iTrader: (21)

Good stuff, guys. I was totally ignorant on the 6.0 crankshaft lengths.

CAMAROZ28AQUINO

I just bought an LQ4. How do i know if mine is the long crank or the crank that will work with the LS1 T56?

1988montecarloss

iTrader: (6)

if it has iron heads it wont work

67SS509

iTrader: (25)

I machined one down once and it worked fine. It"s an easy job for a crank grinder.

1988montecarloss

iTrader: (6)

think any machine shop could do it? how much did it cost you?

CAMAROZ28AQUINO

how much does it have to be machined?

1988montecarloss

iTrader: (6)

.400"

blk74nova

I just read something about this in a car magizine. I believe they suggested using an 1/8 in scatter-shield. Idk if this would work for you or not.

1988montecarloss

iTrader: (6)

i dont know if 1/8" would work because its not the same as .400", i wish i could find a .400" spacer for between the block and trans haha

and does anyone know how much it would cost to get the back of the crank ground down? and if i would have to rebalance the bottom end if i got it done?

1988montecarloss

iTrader: (6)

anybody?

LS1MCSS

iTrader: (18)

Your best bet is to swap carnks. One thing nobody else has mentioned is the clutch. With that crank it's also going to be .400 closer to the tranny which is going to cause throw out bearing problems. That's going to be an obstacle you will have to overcome with the longer crank. Just swap it for a short one.