I'm planning a h or f2b setup and im going to boost it. my question is which block is better for turbo i have read that the f20b block has stronger sleeves but i have no problem sending the block out to have it sleeved anyways. Is there anything that makes either blocks better than the other or should i just buy the cheapest one i can find?

 

Since you plan to sleeve anyways the fact that there aren't any off the shelf forged rods for the f20b would turn me away, the h22= bigger motor, larger valves, more potential. If I was doing it on a budget and looking for boosted longevity on stock internals I would go for the f20b. It has very stout internals from the factory i have yet to hear anything about broken f20b ringlands.

 

Ok the h22a seems to be the best bet diddnt know that no forged rods were either made or are compatible with the f20b thanks!

 

http://bisimoto.com/store/index.php?...roducts_id=615

pistons for the f20b they also have a low compression piston you just have to call

as for the valves they are the same as the h22 its an h22 head

price for the f20b
http://www.hmotorsonline.com/shop/sc...age&item=30013

price for the h22
http://www.hmotorsonline.com/shop/sc...age&item=30029

i personally bought the f20b after also having your same dilema its been fun trying to see what works but im overall excited im using the pistons i linked above and getting custom rods made through bisimoto. what pushed me over to the f20b was that it was a high reving motor

 

Cp will make custom pistons for you also. I'm going to run 12.5 custom cp's in my all motor f20b.

 

No f20b intake valves are 34mm.
Yes they make pistons that's why I brought up the subject of off the shelf rods. But like I said in another forum, even getting a head gasket for the f20b is a pain in the *** and what happens if you bend or burn a valve? Good luck finding a replacement.

 

Get an h23 it has 95mm stroke and you won't be disappointed at all and if it gets boring get a f23 crank and build a torque monster it will be a 97mm stroker h23 and you can put higher compression pistons on it with S2P2 cams= a 260whp/180ft lbs torque beast. You can also rev it high till like 8 which is good enough it's like a frankenstein f22 with a h22 head but better.

 

do they not share their inlet valves with any other engine? surely honda wouldn't have made a complete new valve just for the f20b

 

You would be surprised.

 

Get an H22a prefer(92-96)
closed decks

 

no replacement for displacement people tend to forget this 2.2 is larger than 2.0 the h puts down a lot more torque and has a lower compression which will take better to boost and longevity the f compression is at 11-1 which is not recommended for boost just my 02. cents