I was just wondering if I could get an opinion from people who have done the swap before. My end goal is build and turbo charge the motor for more than 300HP. The motor would go into my 1998 Honda Civic EK hatch. So hit me with the reality.

 

Reality is FRM lined bores can't take any piston you stick in it. Outside of that, price would be the ultimate deciding factor since I think the EK chassis has the most clearance all around when swapping an H22.

 

The F23 has FRMs right?

 

The H22 has the FRM liners. There was a good thread about what happens when you use a piston not meant for that type of cylinder wall. I'm not saying you can't go the H22 route but it may become cost prohibitive depending on your budget in the long run. Just things to consider before you commit one way or the other.

 

So if you're planning on building the engine anyway, why not just use a B18? The only reason I can think of to use an H22 instead of the B18 is if it was N/A. Turbo you just up the boost 2 psi and have the same HP as if you used the larger bore engine. Plus you can use the stock sleeves and easily put it over 300whp with forged pistons and rods.

 

Mostly cost of getting the motor. F23s are cheaper than B18s. I'm not trying to stick to a certain budget but if I spend less on the motor i'll have more money to buy rods, pistons, turbo, injectors etc.

 

The only aftermarket pistons (that I'm aware of) that can be used with FRM cylinder walls as found in the H and F series engines is Mahle, and the sleeves on an H/F block would be questionable at 300WHP.

The cost of a good sleeve install would probably be $1000->$1200. You can buy bare B series blocks from Hmotorsonline for a few hundred dollars, do that and get a fresh hone on the stock sleeves, then drop in your own forged rods/pistons and other internals and call it a day.

Also keep in mind that in general the H/F swap into a Civic chassis is a bit more intensive than a B swap, especially if you intend to retain AC/PS. There's a TONNE of information on H/B swaps on these forums, I'd do a lot more reading before committing to starting a build.

My advice would be to stick with a B series. Larger aftermarket and more support, easier swap, better transmissions, etc....