Thread: Ls1 P38 Engine Conversion

Which gearbox are you thinking of?

Originally Posted by Camo

Which gearbox are you thinking of?

4HP24

What about brown?

Originally Posted by Vern

What about brown?

Hey! shouldn't you be in bed


Early start tomorrow

How's the ears?




I'll ask you tomorrow about noon

Originally Posted by rovercare

Hey! shouldn't you be in bed


Early start tomorrow

How's the ears?




I'll ask you tomorrow about noon

Been bashed twice tonight.
on my way, need to be up in 6hrs, 37min

Originally Posted by Vern

Been bashed twice tonight.
on my way, need to be up in 6hrs, 37min

Really? hahhaha

I've been up seen Pears old man, my CDL works a treat and spent an hour through the scrub on the way home, gue what's for dinner?...................








Steak, chips and Scotch

Originally Posted by Camo

Anymore thoughts on a Gen3 conversion for the P38?

Yep! It aint going to happen for me, unless someone knows a very cheap and "sympathetic" engineer. Because for me it has to be all legit. I'm spending the money on hand rebuilding mine.

From those I spoke to, pollution would be the next big thing, as they wanted the standard genIII cats and ECU etc.

The easiest and simplest way was as rovercare said, which is too modify the existing GEMS to suit the GenIII, but it would cost a lot to get it certified for EPA I have been told.

I'm pretty over it anyway.

Stu

Originally Posted by rovercare

4HP24

I've answered a few of these conversion threads before. IMO the cost of rebuilding a zf to handle the power and torque of a ls series motor would be excessive. They might shift a lot smoother than the GM boxes but they also cost a lot more to get beefed up. A chipped 6.0L ls motor is quite cabaple of pumpiong out 330kw and 550nm of torque. And by the time you go see the tuner to get the bcm functions removed from the computer your going to want to get a quick tune done too.

I've heard quotes of getting the zf built to handle serious power is upwards of $8000. You can buy a NEW 4l80e from the states for that much or get a toughened 4l65e for half as much.

The adaptos that marks 4wd do for chev to zf are not the ls series bolt pattern. Its the older style gen 2 block bolt pattern. The adaptors they do for th400/4l80e to lt-230 require pushing the transfer case right back and from feedback I've got from others they're pretty avg products. Th700/4l60e/4l65e to lt230 adaptors are available from some 4wd mod shops over east. A lot of the crawler guys use this combination.

I dont think you'd get a conversion done for under $10k doing your own labour and trying to source second hand parts. Thats were I drew the line on my disco as I dont believe its worth it. I still want to do it one day but I'm more interested in buying a house atm. But then since I lost 6k of value on my disco over 4 years I dont think its worth doing much to it haha.

If anyone is still keen on doing a conversion there are plenty of useful threads about on here and outeres giving pointers on how to go about it. Whether or not the ls motors will stay cheap now the dollar has gone down is yet to be seen though.