If you do the swap i will buy your 5.3 short block I am/will be looking for a rebuildable 5.3 block to make a forged 5.7 here pretty soon...

 

i got my old 4.8 block U can have

 

thanks but i need the crank out of 5.3 or larger...

 

BTW that damn muffler has something rattling in it that you can hear when it idles

 

Really, did you check and see if the hanger broke off?

 

yea its still on. i can shake the muffler and here pieces in there moving.

 

damn that sucks.... We can cut it off and get the piece out if you want too...


BTW sorry for jacking your thread...

 

with that chamber inside i bet it would be really hard if not impossible to get the pieces out.

 

Man, 0 for 2 today. I could have sworn you could.

 

4l80e uses a spacer on the newer 6 L's. For a 60e you remove it.
Pre 01 had the cranshaft made with the longer snout so you can't just pull a spacer to and throw a 4l60e behind it.

The only real way to identify a lq4 vs. 9 is to look down the spark plug hole to see a piston. there is a dish in the lq4. the lq9 is a flat top.