I want to swap the LS1 5.7 engine block with a LQ9 6.0 block out of a 2006 Chevy truck.

Will it "physically" fit in my GTO? Is it plug and play? Will it bolt to the transmission, engine mounts...etc?

 

Yes....

 

Great! So besides the pistons...what else cannot be swapped from the LS1 to the LQ9? What changes do i have to make? (like including the littlest thing)

 

Wow....you plan on doing this yourself? You need to do some reading. It is all here just search.

 

This^ no offense to the op but when newer members come on here and ask questions like this it makes others not want to answer because it shows a lack of experience and searching on the ops part. I understand everyone needs to start somewhere but you need to do research on your own then ask educated questions.

To answer the original question almost everything will swap right over minus the alternator bolt

 

There is an alt bolt hole drilled and tapped the the lower driverside front of the ls1 block that is not there on the lq4/9....you can drill and tap for it, but I just didn't run that bracket bolt when I swapped my iron block into my 04 GTO

 

It will fit like a glove.

 

haha totally understand that! Reason im asking is cz i got a very sweet deal on an LS9 and i was at the junkyard when i posted the question. No time to research. I asked the guy to give me a min, got in my car and posted my question. And based on what you guys said, i just bought the block! So yeah...thanks a mil for the quick reply!

 

Good un hear it will fit! Thanks alot for the info guys!

 

LS9 or LQ9?

 

Whats the sweet deal on the LS9? Can i buy it from you? lol

 

oh c'mon, you know that was a typo. LQ9

 

you will need a mail order tune for the lq9.while it is out of the car ,consider a cam swap .