Head swap ideas/opinions. F series non-Vtec.

[GenDBlade]

Alright. I just got a f22b2 out of a 5th gen accord. and i am going to use that block for the all motor build im doing. Well, after tearing it apart, i find a big crack in the head(block seems fine, but doing some caliper work later to confirm that).

So here's my delima, should i use a f22b2 head or a f22a head. Ive been searching around a bit and reading up on it and it seems like the the f22a is going to be what i go with, but i want some more opinions on it. From what i can tell is that the F22a head is a better flowing head, but the f22b2 head has a little bit more aggressive cam(I could be totally wrong here but thats what this post is for). And seeing as ive been out of the Honda game for a few years, all of my information is a little rusty.

What im trying to do is a high revving all motor build. Forged internals and ITB's, and probably hondata to tune.

So what do you think? f22a or f22b2, and why.

Thanks.

[Jarrett]

The intake ports on the F22A are much better. The camshaft in the F22B2 is the exact same cam that's found in the F22A1 and F22A4. The F22A6 has a better camshaft that's also shared with the F22B6 in the Odyssey. Use the F22A head, if you can. It's a much better base from which to modify. If you want to do a high rpm build then OEM camshafts aren't going to matter anyway.

[GenDBlade]

I wasn't planning on using an oem camshaft anyways, i was just using that as reference, haha. And what makes the intake ports so much better? Cause after a port and polish, is that really going to make any difference?

[Jarrett]

Take a gander at them and you tell me.

[GenDBlade]

Haha well i dont have a f22a on me right now. going j-yard diving later this week though.

[Jarrett]

You seem to have internet, though.

[Granite CB7]

Visually compare IM gaskets and you'll see a big difference.

[GhostAccord]

The F22B2 and F22A* intake ports are relatively similar in flow. The cam in the F22B2 is just a wee bit shorter than the F22A6 camshaft. Overall the reason that the F22B2 head doesn't flow as well as the F22A* engines is due to it's 2mm smaller intake valves. And the asymmetrical port geometry of the F22B2 exhaust ports is another minor inconvenience.

If you are looking to build something that revs high. A 95mm stroke probably isn't your best bet. Sure you can make it work with all the right internals and balancing. Beside that, there aren't too many off the shelf cams for the F22A that will have you making power past 6500rpm. Unless you get into the Race grade cams and complete valve train. $$$$$

What is your budget and what are your goals... aside from high revving ITB build.

Also, What throttles are you looking to run?