LQ9 Options

[Lawrence]

There arent a lot of LSx engines going cheap in the UK, and when I found an LQ9 on ebay for not a lot of money I bought it. I've got 3 LT1's, and now I've got an LQ9 that I cant swap stuff into

Right so what year auto gearboxes can I use on this? I have a '95 4L60E sat spare, along with a 4L80E. Can you only use the late split bellhousing ones with these? I was planning on running a factory PCM, but open to suggestions.

[nitrorocket]

Yes, you can bolt up the trans to your ls1, but one belhousing bolt will not be used, so only 5 will be holding the trans on. No big deal. I have almost 1000 hp and mine is still holding on strong! You can use any auto gear box.

[Whistler]

Any year trans will bolt up, but the flexplates and torque converters are all different.
I was under the impression that the 98-up 4L60E was the only one that would work with the factory LS1 PCM. I may be wrong though. I know you can bolt up any older non computer controlled trans, like a 700R4, TH350, TH400, P-Glide, by using 5 of the 6 mounting holes, and using the correct flexplate.,

[Lawrence]

I realised they would all fit physically, it was if I could use a stock PCM and one of the boxes I already had?