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H23A (bluetop) a decent swap?

 
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Old 12-26-2017, 05:20 AM
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H23A (bluetop) a decent swap?

So I have been looking around for a swap as my old h22a4 is starting to burn oil more then I like, and have found that for some reason h23A (bluetops) are dirt cheap, 1/2 the price h22a (redtop) pretty much same power and all but is there any known issues or differences, the place they sell them say they can also swap it in '97-'01 preludes for an extra 200$ but why are the h23A's so cheap compared to the h22A?
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Old 12-26-2017, 12:01 PM
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Re: H23A (bluetop) a decent swap?

because its not really plug and play and it requires some modification

so you need transmission from your old car and ecu - some people like to run it with H22A4 ecu:

Quote:
Originally Posted by Prelude1897
This type of swap has been done several times and plenty of threads about it, cause I've actually done thus swap for several people. I hope you still have your original ecu. Here's a list of what you needed to swap from your old motor to this motor in order to keep it all as if it came in the car factory

-intake manifold
-dizzy
-ignition coil
-oil pump
-crank sensors
-motor harness

No need for any extra wiring or special ecu. If you swapped these parts over, car would run normal.
others want to do OBD1 swap since H22A4 ecu is not the 100% correct one for H23A VTEC engine

remember that you have to rebuild that swap engine also, it might leak oil from everywhere unless you rebuild it (+new clutch+timing stuff etc) so the total cost is always more higher than just the engine cost
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Old 01-08-2018, 11:42 PM
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Re: H23A (bluetop) a decent swap?

The list is a little longer than above.


Overall it's not a bad swap for the money. I've done a few and the owners remain happy.
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Old 01-10-2018, 10:39 PM
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Re: H23A (bluetop) a decent swap?

^^ father to a happy owner who Wings helped.

Torquey little engine.

It comes from a Japanese Accord station wagon with an auto tranny.
You have to make emissions speak American, remove the auto tranny torque convertor stuff and do some other American-izing to the engine.

Plus water pump and t-belt swap is a good idea, lots of gaskets and hoses too while you have it apart.

It set my son back about $2500 total, but it was like having a brand new Prelude went they finished.
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Old 03-01-2018, 09:26 PM
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Re: H23A (bluetop) a decent swap?

Quote:
Originally Posted by Frenchy View Post
So I have been looking around for a swap as my old h22a4 is starting to burn oil more then I like, and have found that for some reason h23A (bluetops) are dirt cheap, 1/2 the price h22a (redtop) pretty much same power and all but is there any known issues or differences, the place they sell them say they can also swap it in '97-'01 preludes for an extra 200$ but why are the h23A's so cheap compared to the h22A?
Hope I'm not late....

I literally just bought an H23A VTEC BLUETOP for 800$ at HMOTORS. My mechanic of course swapped all the sensors (ANYTHING OBD2) from the h22a4 into the new h23a (while they are both OUT).

Only thing im using from the H23A are the fuel injectors (theyre shorter, so just use the shorter fuel rail support screws (idk what to call em) so that the fuel rail sits right on the fuel injectors.

Im using the h23a throttle body as well, it is much bigger, but i am about to REMOVE it and use the old h22a4. WHY? Because im getting an EVAP EMISSIONS CODE because theres is no port for the hose to go into the intake. The h22a4 has that port for the hose for the sensor.... but the h23 does not. So... LAME. lol.

Otherwise, i have NO OTHER CODES. VTEC works great.

I am also using my stock p5m ECU.

Also my car was swapped before from auto to manual.
So that p5m ECU is actually "converted". It used to be automatic ecu. lol.


I LOVE THE ENGINE THOUGH!!!!

VTEC KICKS LIKE A BAWSSSSSS

My old h22a4 was crapping out, pooping so much black soot. And the sound was just so.... bad... I mean it sounded very empty.

The h23 just sounds so "tight", "compressed", PURE... RAWWWW....


Anyways thats my experience. I see no reason going with the more expensive h22a thats like 1400$....


I even put in some megan headers (i know dont judge me... but so far its performing like stock). Also wrapped it with gold-ish colored wraps. Looks great.

And yeah my old stock one was just rusty and nasty. Had to take that mofo out!!!!!

ANyways GOOD LUCK!1
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