thefastlife

iTrader: (14)

i have heard horror stories about a t56 not working with certain stock 6.0 if someone could help i am trying to find out what years of 6.0 i can and can not get that will bolt straight up thanks a bunch

98silvermaro

iTrader: (8)

I got an 03 Escalade block (GENIII) in my car and everything bolted right up. If you stay with a GEN III block everything will bolt right up. If you go with a LS2 which is GEN IV I believe, I think the knock sensors and the cam position senors are in different locations or different plugs

thefastlife

iTrader: (14)

so the genIII block would be a lq4 or lq9 im kind of confused

98silvermaro

iTrader: (8)

yes... mine is an LQ9. you can still put an LS2 if you want to save the extra weight. like i said I think its just a couple different connections

thefastlife

iTrader: (14)

well the issue i hear was something about the trans not bolting up due to the crank shaft ? it wouldnt clear

98silvermaro

iTrader: (8)

I know you can put a T-56 behind a LQ4, LQ9, and all the LS motors

thefastlife

iTrader: (14)

lol ok thats what i was looking for

BES Stroked Nova

iTrader: (24)

i think it was 99-00 6.0L's that the crank was different.

Dont forget that pilot bearing during install!

jmm98LS1

iTrader: (28)

^^^Correct. The 99-00 LQ4 crankshaft has a longer rear flange that can only be used with 4l80e/th400/th350 transmissions. A 4l60e or T56 will not bolt up to these engines. Starting in 2001 they went to the shorter flange that bolt right up to a T56. These early engines are easily identifiable by their iron cyl heads heads instead of aluminum 317 castings that came on the '01+ engines.

thefastlife

iTrader: (14)

Cool that's what I needed to know thank you guys a ton