82 datsun 720 Z22 engine swap

[zedman280]

Okay, if this has been covered, I apologize, I have been searching for ages (perhaps my computer skills are the sh*ts!!)

I am looking for a technical writeup on common engine swaps for my 82 4x4 king cab, with a stock Z22.

Possibly a KA24 (DE), or maybe I just rebuild the Z block and throw a KA24 head on with minor mods ?

If anyones done it or knows of a link, it would be most appreciated !

cheers

[Rev_D21]

The KA head on the Z block has been done before. As with any swap getting the ECM will be important. I built a Z24 from the crank up for my old 81 720.

[seang]

Z22 crankshafts are particularly useful in frankenmotors. You should research it.

[breadbox]

whats the difference in the z22 and z24 crank?

[seang]

The z22 crank has a shortrer stroke than a z24 crankshaft. I haven't done one myself, but threads exist about taking ka24 pistons and rods with a z22 crank in decked z24 block with an L series head, or something like that. People have brewed up various recipies for these frankenstien motors. You should google "naps-z frankenmotors". For what its worth.

[seang]

Oh yeah, now I remember what it was about the z22 crankshaft, Datsun guys take a L20, and make an L22 with the z22 crank, because they never made an L22 from the factory.

[nismopu]

z22 and l20 cranks are no different in stroke or size. SO, since an l20 crank is fully counterbalance people just put these into z22 blocks and run the L-series head. That way you can rev the crap out of the engine like you can an L-series. peace.

[seang]

L20 stroke = 86.0 mm; Z22 stroke = 89.0 mm; Z22 crank IS fully counterweighted, and the z24 crank is not. If I am wrong, my name is Susie Q.

[nismopu]

you are correct sir. I hadnt read the franken book in a while. peace.