Ok guys how hard is it to run a H23 block on H22 head? Is there anything special you need to do? I was told the two block are identical and should just bolt right up. Now that was the exact words from a highly rated local speed shop. Thanks.


[Modified by akkording, 5:41 AM 10/11/2001]

 

Someone help this guy out!... Cuz I need to know too.

 

I had someone IM me and said that you need to drill out the oil lines.

 

There is actually a lot you have to do, can' remember the whole list.. Basically need EVERYTHING from the top of a H22a1 motor, including ECU...

 

I have a H22 complete swap in my Accord already. I just need to replace my block since it's cracked.

 

It is complicated. You need the entire head of an H22a, p13 ecu, and all of the timing belt gears on the lower part of the h23 block need to be changed out for h22 gears.

There is some machining of the coolant passages in the h23 block if you want to do it right.

With h23 pistons and an h22 head, I don't know what the compression ratio is. It might be pretty low.

 

I have all the H22 parts, I mean the engine is in my car working just fine until the block got cracked(dont' ask how). The CR on a stock H23 piston is lower but you will have more torque and VTEC will be bad ***. If I were to go with the H23 Block, I would rebuild it completely with higher CR pistons.

 

Taking all that into consideration. Would the popular opinion be to just do a full swap, rather then try to do all that crap? And then not even be confident it will work. Does anyone know anyone who has done it and is enjoying it w/o problems?

 

Accually your compression will be higher because now it is 9.8/1. It will end up being about 10.8/1 or 11/1

 

I didn't know that H23 had higher CR than h22. I know it's been done before just need to know how cause I want a h23 VTEC bad. Thanks yall

 

It should be pretty reliable since the prelude that races on speedvision has a h23 vtec in it.

 

So does Steph Papadakis in his new Civic.

 

Well... Do any of you know these guys personnally? How did they do it, how much dd it cost, etc.

 

It would be cool to have an h23 VTEC, but if I were you, I would just do the swap and get the JDM h22. It sounds ALOT safer.

 

I need a short block, my 97 H22 heads are perfectly fine. JDM H22 isn't a huge difference compared to a USDM h22, but if you go JDM Type-S now that's what you call the McDaddy of all H22's. I have Type-S cams now and I was thinking about getting Type-S pistons if I get a great deal on a H22 short block. I'm thinking about sending the heads and intake manifold to get P&P while the engine is parted.


[Modified by akkording, 8:22 PM 10/14/2001]

 

Who are Steph Papadakis sponsors? I might try E-mailing Steph myself.

 

yes it can be done! I know a guy that just finished doing it in his 96 prelude Si. His timing belt broke and messed up the head so he decided to just swap in the H22 head on his H23 block. I think he spent over $3000 and he did all the work himself. Its running great and no major problems. But the only problem he is having now is it only redlines at 6500 and not 7500 so he's not getting the full potential of it. He is still trying to figure out whats wrong with it...