S14 KA24DE in a S13

Information on the naturally-aspirated KA24E and KA24DE engines.
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D1SR240
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I have a 91 240sx, and i'm looking for a new KA. Well i found aone for 400 bux, with 46,000 miles. Only proboblem is that it's from an auto 96 240sx. I know that since mine is a 5spd i'll need to swap the pilot bushing. But since this is a s14 engine then will it go in just as easy, or will i have to do any other things. The engine doesn't have a distributor so can i use the one from my 91 KA. I also heard that the 91's have better cams. Can i swap in the cams from mine, or do i have to use the s14 ones? Is there anything else i have to worry about since its from the s14 or will everything go in good?

Thnx in advance.


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D1SR240
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i also forgot to ask, can i use my ecu, or do i have to use the 96 one? and will my trans work with the s14 KA?

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CraigB
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You'll want to use your intake manifold, exhaust manifold, A/C bracket and distributor. The S14 will bolt to the S13 transmission...

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D1SR240
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i forgot to mention the power steering is also not in the s14 one, can i use the one form mine?

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CraigB
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Yeah, the S13 P/S pump and bracket bolts right to the S14 block.

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D1SR240
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i want to use the s13 a/c bracket, or the whole a/c system from the s13, also which belt should i use the s13 one?

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CraigB
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The entire A/C system from the S13 and the S13 belt (if I remember correctly)...

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D1SR240
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k thnx

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CraigB
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No problem...

BomexS13
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CraigB wrote:You'll want to use your intake manifold, exhaust manifold, A/C bracket and distributor. The S14 will bolt to the S13 transmission...


You're saying that the exhaust will fit the s14? So if I'm going to buy a hotshot header, I should order one's for the s13?

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CraigB
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I'm saying that the S14 and S13 exhaust manifolds (and headers) are totally different and not compatible...

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PinsNNeedles
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as far as the ECU quesion, if i am not completely mistaken, the 95+ 240's used an OBDII setup, meaning that your '91 ecu will not neccesarrily work with the new motor (at least not without some add'l wiring). Just my .02, it seems that the best bet would be to get the newer ecu & approriate sensors for the new motor as well as the full wiring harness to accomodate.

-then again, i hate splicing wires.......

Tom

Scott McLellan
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I have a question that goes the other way. I would like to put a 91 KADE in my 95. Will this work if I sway all the electronics, a/c, ect? Will the blocks be identical and all the major mechanicals be identical? Will the head have all the right places to bolt things, ect? Thanks!

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D1SR240
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but if i use my intake manifold then isn't and distributor then isn't all the wiring gonna be the same?

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CraigB
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Your computer doesn't care that there is a different head and block. As long as you use everything else from your existing motor. Either way, 1991 to 1995 or visa versa...

tex240
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can anyone verifiey that the s14 engine will go into an s13 as long as you use the long block from the s14 and all manifolds and crap from the s13

Thee 240sx Owner
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i'm curious about the wiring harness from an 89 240.... I just bought a 95motor and want to swap it into my 89 but i'm curious as to what is different sensor wise aside from the coil/distributor... can i use my existing wiring harnes... yes i'ma lil too lazy to search becuase i never find answers.. and yes i'm very expierenced with my car so you can speak giberish if you need to

irax
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acualy the 96+ were obd2 the 95 s14 (which were built in 94) should still be obd1... but regardless, unless you use the s13 cams you would pritty much have to use the s14 ecu.. and since its an automatic ecu (im guessing) and you got a 5 speed, if you get a SAFM and use the s14 auto ecu, you wont have a speed limiter... but this is all stuff i found off the forums..

Mameluke
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yah u guys pretty much summed it up. just a month ago i had a 96KA go into my 91 240sx. my old engine blew up. so i met a guy on this forum and bought it off him. anyway, the only thing we ended up using was the S14 Block/Head. s13 electronics, s13 intake and exhuast manifolds, s13 transmission. the other stuff doesnt work. i heard a lot about s13 cams being better, but i dont really feel difference at all.

irax
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well.. how meny miles were on your s13 cams? maybe they were worn down ? ohh well..

spitz7985
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CraigB wrote:You'll want to use your intake manifold, exhaust manifold, A/C bracket and distributor. The S14 will bolt to the S13 transmission...


what is different about the s14 intake and exhaust mani. is the s14 direct ignition?

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D1SR240
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1991 Nissan 240SX

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the difference in the exhaust mani. is that the s13 has two outlets going into 2 inleds that lead into the cat, while the s14 only has one outlet hole, which would not match up wiht the 2 on the s13. on the intake mani all the hoses and **** are different, and on the s13 there are these 2 plugs that go in the back of the head along with a bunch of hoses and are all part of the intake mani, as where i don't think the s14 had all the crap in the back of the head.

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Charlie240sxt
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Only thing you want from the S14 motor is the block and head. Use everything else off your 91 motor and swap the cams over to the 95 motor from the 91 also and youll be set. Oh yea the 91 transmission will work fine with the 95 block after you put the bushing in thats what i read, but i am about to start researching a s13 cam drop into my 95 for the bigger cams


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