Just wondering, I've seen it mentioned on a few different forums and the engine seems to at least be more cost effective than the H22. So, I was wondering if anyone's done it, seen it done, or can just give me more of an idea on how much trouble it would be.

If there's already a topic about this, I'd be happy to check those, but I didn't see anything in the first few pages.

Currently I have the F22a I4 non-VTEC, standard bolt-ons, nothing special, just my daily driver. Looking for an affordable and unique approach to upgrading.

 

didn't someone swap the a legend engine into a 5th gen? I think it was one these boards and i think that it was not that bad for cost. Extremely unique to and made more power.

 

Someone was fooling around with a V6 block and an empty Prelude engine bay awhile ago. It didn't seem to have any dealbreaker fitment issues.

That said, there is no way that it would be more cost effective than a H-anything. ESPECIALLY if your time is worth something.

 

Here's about the longest and detailed thread on the very subject: https://honda-tech.com/zerothread?id=1887794&page=7

BTW, google PWND the HT search on it....Anyway, most questions regarding cost and amount of fab are addressed.


Modified by Televator at 5:21 PM 6/4/2008

 

? an ebay parts auction is the longest thread lol?

 

Mainly wondering. I found a perfectly good used 98-02 Accord V6 for about $500 local. I don't have the money yet, but since it's local it shouldn't be hard to talk with him and work something out.

I'm sure I'd need a tranny too, and I'd have to re-do my exhaust a little.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Prudz_lude &raquo;</TD></TR><TR><TD CLASS="quote">? an ebay parts auction is the longest thread lol?</TD></TR></TABLE>
Stupid multiple windows!!! Fixed /thread.....https://honda-tech.com/zerothread?id=1887794&page=7

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chaos.ultima.mage &raquo;</TD></TR><TR><TD CLASS="quote">Mainly wondering. I found a perfectly good used 98-02 Accord V6 for about $500 local. I don't have the money yet, but since it's local it shouldn't be hard to talk with him and work something out.

I'm sure I'd need a tranny too, and I'd have to re-do my exhaust a little.</TD></TR></TABLE>

Don't forget about...

Motor mounts
Wiring harness
Shift cables
Axles
Engine management
Clearance issues
Radiator hoses

for starters...

 

I really don't see the point in puttin the v6 accord engine in place of the H22 wouldn't ya be sacraficing a load of power??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Joja Boi &raquo;</TD></TR><TR><TD CLASS="quote">I really don't see the point in puttin the v6 accord engine in place of the H22 wouldn't ya be sacraficing a load of power??</TD></TR></TABLE>


It depends on the year of the Accord. The newer ones put out about 240hp or more. They also deliver a whole lot more torque than any H motor Honda has ever created. The delivery of torque comes a lot quicker in the powerband too.

J series engines are no joke lol.

 

but the weight of the v6 would offset the horsepower gains depending on the difference between the 2 motors.....

 

The J30 puts out 200hp and J32 puts out ~225-260 depending on the version. Either way, it would also give the advantages of lower RPMs overall and the ability to twin turbo, right? They are also VTEC.

Now, the other threads that were linked here had pics of cars that had V6 swaps done from V6 Accords to 4-cyl Accords and even Civics, but no Preludes. It's a tight fit, but it didn't look like something that would really require much (if any) modification to the firewall or antyhing. But, there were a couple of posts were it was stated that it WAS NOT possible to do the swaps otherwise.

I'm getting mixed information apparently...

 

imo.. if u really wanted 2 get rid the H22 then go with a K24/k20..u would haft 2 fab some **** but it can be done..........

 

Well, the problem is I don't have an H22. I have an F22a, which means all I'm really good for is a grocery getter and daily driver. Sure, it's faster than a Civic or something with the same mods, but it's still slow as x-mas and it doesn't get many cool points.

If I'm gonna have to spend a couple grand on an engine+tranny+work I'd like to get the bang for the buck. A V6 would be unique, powerful, and freaking sweet. The K-series isn't gonna be any better than the H22 and easily as much (if not more) hassle.

 

The way I understood toward the end of that thread, is it requires lots of work to fit it. even amongst the Accords, the V6 version had a bigger bay to accommodate the motor.... We all understand that there is power and torque to gain from such a swap, but for all the work you need to do....it's up to what you find within your capacity to go through with. As for a K....K24 or nothing else IMO. Stock H22s put out similar power and more torque that a stock K20. (i.e. H22A euro R) Plus you keep the H22s taller deck height, and stroke. A k24 has an even taller deck and MUCH longer stroke still, and there are now mounts for such a swap.

 

So, even though I can't see a terrible difference in specs between the H22s and the K24, the K24a2 or K24z3 would be better?

I'm not experienced at all with the K-series stuff.

 

LOL, they have MANY similarities. More than most K heads like to admit to. I'm speaking mainly from what has more potential for power and good torque. A 99mm stroke, and the same ability to be ported and bored as the H is definetly favorable in my eyes...Just do a bit more research on each motor. Make your own conclusion. I'm sticking with the tried and true H.

 

The reason you dont put a big v6 in a prelude is because, increased weight up front reduces handling. You could make half the horsepower difference on the lighter h22 and be just as fast with better handling.

 

Just build the H22, slap on a good turbo and engine management and call it a day when you hit 500hp if you're that in need of major horsepower.

 

You guys are forgetting that K series motors respond A LOT better to basic bolt ons than the h22 does.

Hell even just tuning a stock k20 can yield ~15whp.

 

same with a vtec h22, tuning out the vtec dip does the same thing, but yea the k20 is nice, still doesnt have the torque though, if im not mistaking...

 

I've seen (non- USDM) h22s hit 200 plus w/ basic bolt ons. It's merely a matter of ataining even half decent parts and a nice tune to give the motor some more breathing. Plus, I've noticed most k series guys aren't as scared to really rev out their motors. Not surprising given that many K20s are already equiped with pretty aggresive stock cams to go along with the 55mm mains. A combination that 90% of all H series don't have the luxury of. One of the few that can being the Euro R. A very aggresive factory H, w/ 55mm mains. I've seen charts on those hit 200 with restrictive bolt ons and a mild retune. Not to mention it can achieve a more favorable torque curve than, a K20. And being in a prelude, there's no worrying about expensive K-pro, mounts, etc....So this is what I'm getting at...At the very least, I'd make it worth the trouble, and go K24. Or even a stroked K20 (although the deck is shorter).

 

the only real disadvantage i see is serviceability, changing plugs would be a pain. at only 100 lbs more, weight over the front end shouldn't be a big issue. 260 hp w/stock reliability would be worth it imo

 

you cant get rid of alot of that extra weight if you wanna get rid of your a/c or you could just throw a couple big bags of dogfood in your trunk lol. no but seriously if you did put the v6 in ther (especially one of the new ones) you could then put the 6 speed tranny that came with accords and put some stiffer springs on it and it would be worth it in my opinion. you would probably have to do some fitment cutting but not alot. considering the 4 cyl motor has all kinds of room if it wasnt for all the luxury crap like cruise control abs a/c p/s