Thread: Engine Swap - TD5 90 to .......LS1/6......?

Hi all,

i am also eager to see the outcome of this, i have stumbled across this thread but i'm actually on the other side of the fence... i just chewed up my 4L60E, and i was going to replace it with a ZF gearbox. Since you guys are the only ones who are interfacing LS1's with ZF's, i figure here will be a good place to keep an eye on.

Mainly i am interested in interfacing the delco ECM computer with the electronic ZF TCM.

With any luck, i will end up with a ZF 6HP26 six speed auto in my HSV. I am assuming that your ZF 4HP22's are electronic also, and that a ZF 6HP26 will work with a ZF-Chev adaptor from Marks 4WD.

cheers and good luck on the conversion! If i find any more ZF-LS1 info i will post it up on here in case it's of assistance to you guys.

ps, LS1s are awesome, my 2003 LS1 is still pulling hard, with more power than an LS3!

Originally Posted by v8chev

Hi all,

i am also eager to see the outcome of this, i have stumbled across this thread but i'm actually on the other side of the fence... i just chewed up my 4L60E, and i was going to replace it with a ZF gearbox. Since you guys are the only ones who are interfacing LS1's with ZF's, i figure here will be a good place to keep an eye on.

Mainly i am interested in interfacing the delco ECM computer with the electronic ZF TCM.

With any luck, i will end up with a ZF 6HP26 six speed auto in my HSV. I am assuming that your ZF 4HP22's are electronic also, and that a ZF 6HP26 will work with a ZF-Chev adaptor from Marks 4WD.

cheers and good luck on the conversion! If i find any more ZF-LS1 info i will post it up on here in case it's of assistance to you guys.

ps, LS1s are awesome, my 2003 LS1 is still pulling hard, with more power than an LS3!

Your in for a world of hurt

4L80E is what you want

I fried my 4L60E in 1200kays, its now a little tougher, but still don;t like its odds, although If I could keep diff's in my Jag (2now in 4500kays, and the missus is usually the driver) I might get a chance to kill it again

I know that the 4L80E is the sensible way to go, they are always the shot for big torque input, hell i'm always recommending that my dad to switch from his built TH350 to a TH400 - just on input shaft size alone (not too much of a problem right now it keeps braking tailshafts).

At the cost of a 4L80E though, i could afford to rebuild my 4L60E, plus buy a ZF six speed out of an XR8 and have a play. I would love a big L80, i just was dreaming about the ZF clutch-locking efficiency, save a few kw from the flywheel to the wheels and shift quicker than a manual. There is also the weight of the box too, i am trying to keep my weight under 1500kg.

If there is hp problems with the ZF 6HP26, i guess i can go with a 4HP24A, i have driven the 2008 Audi S8 (spare underwear) and that gearbox handles the power and weight with precision, and they are nice and tight in a XR6 Turbo as well. I guess i'm a big fan of the ZF electronic gearboxes just because i'm a tech junkie, and i like the efficiency and low weight. (the 8-speed has just come out and is lighter than the 6-speed AND still has better efficiency, but that's dream stuff for now). The only problem i guess is if there is car problems while i'm away at work, do i send it to holden or ford... hehe would be good for a laugh.

why the f*#k would u want so much power in a defender is it more of a **** factor than anything else .sorry i dont mean to be rude i cant wait to go 4bn with u guys to see where all the power would be at use

Originally Posted by defmec

why the f*#k would u want so much power in a defender is it more of a **** factor than anything else .sorry i dont mean to be rude i cant wait to go 4bn with u guys to see where all the power would be at use

Why do you want anything bigger than 31" tyres??

Why do you want longer travel shocks?

Why do you want..................



Pretty stupid remark, Really

Well i have baught myself a gen3,, now just on to aquiring the necessary bits to make it fit in the county

Originally Posted by the big fist

There's an ls1 in a defender here in Perth. It's in the latest issue of Perth Street Car, my mate and his workshop did some of the work on it. Wa Performance.
The early ls1's were pretty useless. Mine has a cam only pulls 367rwhp in a heavy vx clubby.
I think it would be a great conversion !

Originally Posted by Psimpson7

Thanks for the info. I think the owner of it may be on here somewhere.

I have sort of got a bit sidetracked thinking about this at the moment......

Discokid (over Perth way) on this (and outers) forum has an LS1 and TF77 in his 110 offroad racer.

Originally Posted by defmec

why the f*#k would u want so much power in a defender is it more of a **** factor than anything else .sorry i dont mean to be rude i cant wait to go 4bn with u guys to see where all the power would be at use

I agree, why would you want a much newer, light weight, reliable, very torquey, massively powerful, reasonably economical engine that is very easy and cheap to source parts for and has soooo many options when it comes to after market add ons when you can go for a tired old 3.5 rover motor........ ummm hang on a minute maybe i dont agree..

maybe we should all just settle with a 2.25 petrol motor,, god knows my county would really love the beach if i did that!!