K20A2 engine swap into a 90 civic hatchback...
Thread Starter
Honda-Tech Member
Joined: Sep 2002
Posts: 912
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From: Central Point, Oregon, United States
What needs to be done under the hood of my 90 civic hatch in order for me to be able to plop in a new K20A2? I know the motor mounts are different and that the K20's tranny is on the driver's side, but can I just weld in motor mounts from an EK civic or are there other modifications that need to be done.
Thanks Ahknodd
[Modified by Ahknodd, 1:43 AM 12/19/2002]
Thanks Ahknodd[Modified by Ahknodd, 1:43 AM 12/19/2002]
Thread Starter
Honda-Tech Member
Joined: Sep 2002
Posts: 912
Likes: 1
From: Central Point, Oregon, United States
I understand that it won't be easy. I don't care about that, I just really want that engine and I don't mind getting dirty or it taking a long time. I think it'll be worth the trouble. I just want to know if any other mods need to be done to frames or mounting points or what ever. Just so I have an idea of what I'm going to be doing before I dive right in. Thanks for your reply.
Ahknodd
Ahknodd
Well, the problem is, Older Honda engines are reverse rotation engines. The new K Series are normally rotating engines.... you can figure it out from here.
I asked a similar question awhile ago. Heres the link: https://honda-tech.com/zerothread?id=167789
That should answer most if not all your questions.
That should answer most if not all your questions.
Well, the problem is, Older Honda engines are reverse rotation engines. The new K Series are normally rotating engines.... you can figure it out from here.
there's been threads in the eg+ forums about mount kits for the k20 in an ek i think it was....
if it could work in an ek could it not work in an ef?
I think the swap that you're referring to is the RSX Type S K20 into a new Civic... The reason why it wouldn't work is that since the engine spins the other way, you'd have 5 gears of reverse and 1 gear forward.
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Thread Starter
Honda-Tech Member
Joined: Sep 2002
Posts: 912
Likes: 1
From: Central Point, Oregon, United States
So, I understand that I'll have to rewire a bunch of stuff, and the engine spins the other (right) direction, but is it at all possible to swap out the tranny and shifter and what ever else to make it correct? Or is it ABSOLUTELY not possible?
So Yeah or Nay oh the swap?
thanks Ahknodd
So Yeah or Nay oh the swap?
thanks Ahknodd
I think the swap that you're referring to is the RSX Type S K20 into a new Civic... The reason why it wouldn't work is that since the engine spins the other way, you'd have 5 gears of reverse and 1 gear forward.
If you use the K20A2 transmission then everything would be fine, I don't see why it would drive backwards. If so flip the whole engine to the other side and see if that works.
Keep in mind, even if you do go to all of the hassle with the wiring, the mounts, and possible modification of the actual engine bay, you've still spent more than a B18C1 swap would cost. Didn't say it wasn't possible, just meant that it wasn't worth the hassle when yuo could be better off with a high end B series engine.
Keep in mind, even if you do go to all of the hassle with the wiring, the mounts, and possible modification of the actual engine bay, you've still spent more than a B18C1 swap would cost. Didn't say it wasn't possible, just meant that it wasn't worth the hassle when yuo could be better off with a high end B series engine.
You are asking as if it were something common place.
No one here is going to tell you exactly what to do, because nobody here has done it.
So, since you are considering it, and apparently seriously, why don't you DO IT and let us know how it went.
You must have the money, know how, time and skill to make it happen, right?
Oh, and by the way, does anybody know what I need to do to put a Toyota Supra turbo engine on my CRX? I know it's an inline 6 and it's rear wheel drive, so I'll need to weld new mounts and stuff. But what other modifications do I need?
No one here is going to tell you exactly what to do, because nobody here has done it.
So, since you are considering it, and apparently seriously, why don't you DO IT and let us know how it went.
You must have the money, know how, time and skill to make it happen, right?
Oh, and by the way, does anybody know what I need to do to put a Toyota Supra turbo engine on my CRX? I know it's an inline 6 and it's rear wheel drive, so I'll need to weld new mounts and stuff. But what other modifications do I need?
i dunno about you guys but i do this kinda stuff for the technical aspect of it. I mean the speed is a great part of it but i would get immense satisfaction from doing what hasn't been done and doing it right. Of course money is a big factor but still if i had a k series and time i think i'd go for mainly because it would be a test of all i know and more. but thats just me.
Is it possible? Sure, anything is possible if you have time and money. Look at the Crx with the NSX motor in the rear, the del sol with the b18c5 with the motor in the rear. Sure some of them might run like crap, but they did it. I just say good freaking luck. IMO it is a waste of time even thinking about it. And no, there is no K series mount kit for the EK. It was in the new Si that HASport did the swap.
I dont really think that a factory K-series is all that impressive a motor.
And reality wise, i dont think its bolt-in possible for a stock-bodied 4th gen. Last i checked its slightly bigger than an h22, and we all know how many people have daily driven h22 4th gens.
And another thing, what the heck is up with the "Five Reverse Gears!" people? I remember when the new motors first came out, there were a few discussions on swap possibilities. Someone posted "you'd have five reverse gears", and was quickly corrected by people who actually had a clue. Now is seems like there are an army drones who constantly post "five reverse gears! five reverse gears!" everytime someone mentions a K-series. Its like a disease i think
And reality wise, i dont think its bolt-in possible for a stock-bodied 4th gen. Last i checked its slightly bigger than an h22, and we all know how many people have daily driven h22 4th gens.
And another thing, what the heck is up with the "Five Reverse Gears!" people? I remember when the new motors first came out, there were a few discussions on swap possibilities. Someone posted "you'd have five reverse gears", and was quickly corrected by people who actually had a clue. Now is seems like there are an army drones who constantly post "five reverse gears! five reverse gears!" everytime someone mentions a K-series. Its like a disease i think
So, I'm a drone am I?
All I meant was that if the engine was installed in the same way as our beloved D and B series engines, that would be the result. I could be wrong.
All I meant was that if the engine was installed in the same way as our beloved D and B series engines, that would be the result. I could be wrong.
http://forums.clubrsx.com/showthread...ht=k20a2+civic
they said they are working on the earlier swap kits and that the install over all isn't very hard. 15k and they will do it for you.
they said they are working on the earlier swap kits and that the install over all isn't very hard. 15k and they will do it for you.



