Engine swap Z24 to KA24E, 2WD/4WD oil pan

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jstck
Posts: 2
Joined: Sun Jul 30, 2017 2:21 pm
Car: Nissan D21 King Cab

Engine swap Z24 to KA24E, 2WD/4WD oil pan

Postby jstck » Thu Aug 24, 2017 4:50 am

I have a 1990 Nissan King Cab 4WD, with a Z24 in it. Yes, a carbureted Z24, not Z24i. Apparently it was sold with that engine here longer than anywhere else due to Sweden being late to the game with emissions regulations or something.
Anyway, that engine is showing its age. It has over 230000km on it, has somewhat poor compression, is burning oil, everything rattles, and it needs a full carb rebuild (and that carb is just strange). So, I'm swapping it out for a KA24E, with port fuel injection and an extra valve per cylinder.

I bought an engine for cheap from a junkyard, came out of a 1993 (or thereabouts) D21. I have renovated it and replaced a few bits and just cleaned it up, as well as built a new wiring harness and ECU (with much help from various posts here). Engine seems to be in good shape, though it was maybe close to suiciding from a completely broken chain guide.
I got it almost ready to test starting it up so I know it at least runs before I do the swap.

One thing that I completely forgot about though is the oil pan. I have a 4WD truck, but the KA24E seems to be from a 2WD as the oil pans are different. I haven't had them side by side (the Z24 is still in the truck), but there are some obvious differences. The "deep part" of the pan is narrower on the 4WD, but I'm not sure if it is the same "depth" or not, or if there are any other differences I'm not seeing. So, this raises some questions:
  • Will the old 4WD Z24 oil pan fit on the KA24E? I'm guessing yes as the block is supposed to be the same for the two engines.
  • Is the oil pickup different between engines with 4WD or 2WD oil pans? Basically, do I need to carry over the oil pickup too if I get the oil pan from the old engine?
  • I've seen people putting truck KA24's in cars hacking up and welding the oil pan to fit a different frame. Would that be a reasonable idea here too, if needed? Doesn't seem too difficult a job, and within my welding capabilities.

Here's a random picture of the engine for no apparent reason (I don't have one available with the actual oil pan):
Image


rjsventura
Posts: 1
Joined: Wed Dec 07, 2011 4:32 am
Car: Nissan D21, Z24 engine (1991)

Re: Engine swap Z24 to KA24E, 2WD/4WD oil pan

Postby rjsventura » Thu Feb 20, 2020 7:16 am

hello, did this worked?

dulobast25
Posts: 8
Joined: Tue May 01, 2007 11:02 am
Car: 2000 frontier

Re: Engine swap Z24 to KA24E, 2WD/4WD oil pan

Postby dulobast25 » Mon Apr 27, 2020 6:46 pm

Are you still attempting this swap?

If you are, I have a few pointer.

dulobast25
Posts: 8
Joined: Tue May 01, 2007 11:02 am
Car: 2000 frontier

Re: Engine swap Z24 to KA24E, 2WD/4WD oil pan

Postby dulobast25 » Mon Apr 27, 2020 6:48 pm

Are you still attempting this swap?

If you are, I have a few pointers.


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