Crank Interchangeability???
 

I'm redoing the bottom end in an '05 LS2 and it has the rare/hard-to-find 24x crank.

My question is, are there any non-LS2 cranks that would work without having them balanced?

In thoery, an LQ9 crank would work, and possibly an LQ4 crank. What do you guys think?

Here's what the current crank looks like. Is this even repairable?

Attachment 123185

All the crank are the same. I have a ls2 crank in my lq9 not problems here

x2 on using a lq4/lq9 crank. There the same.

Actually, i think ls1, ls2, 4.8, 5.3, and 6.0 are all the same. Same stroke i believe, just different bores.

EXCEPT for a early 6.0 crank
They can only be used with a 80e trans

I thought the 4.8 & 5.3 shared the same bore size/block but the 4.8 crank has a shorter throw.

4.8 is short stroke. LS1 and LS2 cranks have the mains gun-drilled.

LQ9's have the same piston and rod assembly as LS2's, correct?

LQ4's have the weaker rods, dished pistons, and pressed pins, right?

Its all in the bore, rods and pistons. Other theb that the cranks have the same stroke. Buuut, you are correct about the ls1/ls2 cranks being drilled.

I think lq4 and lq9 rods are the same. I believe under 06 were the good ones. I believe they were forged. Lq4's have dished pistons and pressed pins. Lq9's have the flat top pistons and i believe pressed pins also.