Thread: D2 Engine options

Yes, the 4.6V8 from the NAS market didn't use the same transmission as the 4.0V8 and the TD5. It used the 4HP24EH which has a higher capacity. I'm also pretty sure the rear diff used the "P38" setup.

Originally Posted by clubagreenie

The size does make a difference, but be aware that the auto (if thats your flavour) may not like it for too long. But a good quality rebuild (not necessarily with all the HP24 parts) but HD/larger clutches and so on will make it right.

Is there anything to be changed re; engine mounts etc, or does it virtually drop straight in

Originally Posted by 1976_michelle

Is there anything to be changed re; engine mounts etc, or does it virtually drop straight in

Assuming it's a Bosch Motronics engine, it should just bolt in, with no modification to anything except maybe front cover stuff like oil cooler. The 4.6 and 4.0 share a block. The extra displacement is from stroke. If you can find a 4HP24E, then you might need propshafts, because the transmission is longer due to the bigger pump, but the stock shafts would probably still work.

I think the p38 has a 4HP24 in the 4.6 HSE version, but I don't know if the lt230 just bolts up where the Borg Warner used to be. I would think it should.

My 2003 with a 4.6 appears to have the same diffs as my 99 with 4.0. I don't think we got the 4 pinion p38 diffs in discos in the NAS market.

Oh ok. Well thats heaps of good info there. From what I gather the link with all the info on the QLD transport site said that any thing other than standard requires certification. Well thats the way I read it any way. Here is the link if any one wants to have a look. http://www.tmr.qld.gov.au/~/media/c7..._vehicles2.pdf

I would think better to go through the red tape and get it done, than have an accident and find yourself un covered