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How hard would it be (or is it even possible) to swap the engine from a 2001 Prelude SH into an 02 Civic EX? Emissions aren't a concern, so I just need to know what kind of challenge this would be to accomplish.....

 
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I am very certain it can't be done, not to mention that it's illegal to swap an older moter into a newer car. The only engine that I know of that will fit in our cars is a K20A2 our of an RSX. Hope this helps. Good luck.

 
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Legality isn't really my issue. And why is it illegal anyhow? I never got that point anyhow. Is that a state thing or nationwide? But anyways, I just want to know if it can be done....and the engine out of a CRV will work in our cars too, I think. Hasport was supposed to be working on the mounts for it....

 
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It is illegal to swap an older model engine into a newer model car. If you had a 2001 Civic then you could do the swap legally.

 
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Why is it ilegal to swap in older engines?

 
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Yeah, that's what I'm still wondering. Is this a national law, or is it just because of emissions testing? If it's just b/c of emissions, then I don't have to worry about it. So, can somebody give me a real reason why it's illegal instead of just telling me it is? I really want to know if this will work because I can get the engine and tranny for under $2500, which is less than the turbo kit everybody's jumping on from SF, and I'd get more HP and torque from this swap than the turbo, and more room for upgrades later. Sure, I'd love to do a K20A swap, but this is more cost efficient, since the cheapest K20A I've seen was just under $4K. Anyways, can I just get some facts instead of empty statements? Thanks.......

 
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Swapping older engines in a newer car is illegal from an emissions standpoint. Newer cars have to meet stricter emissions standards than older cars. What it prevents is sticking an engine that is a real polluter, ie. without a cat. conv., into a newer car. The reasoning behind it, is because, as we all know, the cat. on our cars really prevents us from extracting some good hp out of the engine. So to stop us from grabbing an old B16 that didn't have to meet the new emissions standards, and stuffing it under the hood. This is supposed to help the environment. As for whether it is a state or federal law, I'm not sure. I would check it out through your local law enforcement before you undertake something like this.

As for whether it's even possible, again, I'm not sure. I don't think that anyone makes the mounts for a swap of this type. And unless you want to use zip-ties and duct tape to hold the engine is, you'll need mounts that hold the engine in properly.

Good luck, and let us know how it turns out.

 
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I don't think anyone has tried to do it, anything is possible. People are gonna say NO but noone has tried. People yelled and screamed that the RSX motor wouldn't fit either.

The dude doesn't car about laws so stop replying with it's illegal.

 
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As to whether it's cheaper than the tubo kit, that's really open for debate. With the engine swap the big cost will be whatever you have to custom fabricate to get it to work in your car. This could far exceed the original cost of the motor. As to whether it's legal or not, I could care ****ing less. However, those are the answers you are getting, so if you want different answers you maybe shouldn't have asked.

 
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IT could be done with the right amount of money but your talking about a HUGE engine and that **** is HEAVY and to drop that sucker in our cars im not sure you would get a big upgrade in power because all the HP is gonna hafta haul that huge *** engine. I thought about this swap because i have an 01 but then again the cost it would take to drop the engine in there it would be cheaper to get ahold of a K20 engine and drop it in. It would be cheaper and more practical to K20 swap but thats IMO. But yes it could be done if you got loads of bank. Plus you have to think about OBD1 witht the H22 if im not mistaken and our cars are OBD2

 
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Right. And I'm not sure why one would want to swap a CRV engine into a Civic either. Those things are setup for low RPM grun and are pretty slow, at least the CRV that I had was.

 
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Thanks, RD, for finally bringing some logic to the discussion. Emissions don't mean crap to me, because I'm registered in a state that doesn't test for emissions, and quite frankly, they really don't seem to care about inspections period as long as you pay your $5 every year for the ugly little sticker. Yeah, there's no motor mounts out for this swap, but there's got to be a first time for everything. I'm not saying I'm definitely going to try to pull this off, but if it's logical that it can be done, and there's not many major obstacles to overcome, then I just might go for it. Power to weight would matter a bit in the beginning, but this engine is much more capable of putting out better numbers than the oversized go-kart engine we have now. Yeah, I should have got the WRX to start with if I wanted some really nice numbers, but a lack of research on the 7th gen, combined with focusing too much on what had been done with previous gens landed me in this car. Oh well, I'm giving it to my girl later this year when I move again, but this is my project car for now, so I want to have some fun with it before then.....

 
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I think the major obstacle with the H22 would be the intake manifold. Since the latest gen civic has the drivetrain turned 180 degrees which places the exhaust manifold at the firewall. If the H22 would be in the engine bay you would have the intake hitting the firewall unless if could be moved forward in the engine bay which would throw off your axle alignment, etc.

I mentioned in another thread that I have a source for K20a2 engine swaps...complete front half of the car for $4700 which would everything you need to do this swap.

 
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The car you have isnt bad as i said before the K20A (JDM Teg) would fit nicely and you could gain more power from that than from the H22, and its prolly more financially practical as well. Now if your looking for a major project and something that is challenging then i say go for it, that would be kick a@@ swap.