Description
If you either have a tuned 2.5 P38 or want to fit a M57 to the ZF4HP22 then the only real option you have is to use the P38 diesel ZF bell housing and associated torque converter, this is the smallest of the 3 diameters of converter used by landrover and when this is used on a high torque engine such as this it results in high revs and lots of heat, you will often rev straight past the early torque the M57 produces.
Note this adapter plate only fits the earlier type M57 engine block typically found in the Range Rover TD6 (2002-2006), X5 E53 (2001-2003), E39 (2001-2003), E46 (1999-2002). These are only guide years/
We have now made a kit which allows you to fit the V8 bell housing to this engine block, by using the V8 bell housing you can now fit either the medium diameter P38, 4.0 V8 converter (our number T015) or the large diameter GEMS 4.6 P38 converter (our number T002) depending or the state of tune of the engine. Note the converter will have to match the front of the autobox you are using, ie you can only use the larger T002 with the P38 4.6 GEMS front end on the autobox.
The kit consists of :
1 x 20mm thick aluminium adapter plate
1 x HD flexplate
2 x spacer rings
1 x crank boss, note the thickness differs depending on which converter you are using
8 x crank bolts, note the lengths differ depending on which converter you are using
4 x converter bolts
Richard Hall (verified owner) –
I just fitted one of these kits a few things to point out the v8 bellhousing needs the holes around the bottom drilling out before fitting as it’s hard to drill out after . another point to mention is the adapter plate is drilled and threaded for the startermotor also the m57 startermotor is also threaded so one of them needs drilling out the problem being if the adapter plate is drilled and the startermotor fails you would have to remove the engine to fit new startermotor there are two allen key bolts for the startermotor supplied in the kit but there isn’t much room for them to go the other way through the startermotor in to the adapter plate so by skimming a small amount off the heads off the bolts and using a die grinder to make more room for the bolts to fit I managed to get it all bolted up other than that it’s a nice kit. Hope this will help other people in future.
Rolf ter stege (verified owner) –
I’ve ordered this kit for my m51, wanting to utilize the bigger TC.
The top of the adapter plate needed minor trimming probably because it’s designed for a m57, it was bound up a little on the head. This was a only a 5 minute job so no worries there. And my crank bolts butted out on the crack shaft, just slightly so I added 1 washer between the bolts, this could also be because I used my m51 ring gear.
Everything else bolts up just fine. Even though it needed slight mods I’m very happy with this peace of kit.
Tracey Marshall (verified owner) –
I bought this kit as a present for other half. Arrived in timely fashion so no problem there. However, when tried it on the engine it was discovered that it does not fit. We discovered that there are two M57 bellhousing bolt patterns, and this one only fits the earlier, smaller version. No mention of this on the website, so should be looked at in order not to waste everyone’s time and shipping costs.
Another solution would be to drill it for both patterns. (Note now added to website)
Only other that could be improved for aesthetics, would be to shape the outer to follow the V8 bellhousing more closely. (Will look at this on the next batch)
The kit itself seems comprehensive and excellent quality. Obviously we cannot comment on fit and function as we had to return it.