f22a1 head on f23?

[RicedButFast]

hey cb7'ers. i would like to know if the f22a1 head will bolt rigt onto the f23 block? im tryna swap out my f22 in my 91 cb because my block is destroyed but the head is good. i just gotten an f23 from a 98 accord and wanted to swap it into my cb but i heard its a verrrrrrry frustrating swap to do so "off with his head" the f23 head that is lol. this will be my first engine swap so im tryna take the easy rout. i will be verrrrrrrrry thankful if you can help in any way.

i was a nissan man but i converted over to honda lol

[deevergote]

Headswaps can be unreliable in the hands of a beginner... be prepared to break something.

There are a few people that have done the F22A head on the F23A block. The oil passages are different, so some modification has to be done, but it's doable.

[RicedButFast]

lol yeah your right i know im gonna break something. but hey the best way to learn something is to do it yourself. i kinda hoped you would say it would bolt on with no modifications. so now again with the change of plans lol. thanks for the info.

[deevergote]

The easiest thing to do is just stick to the block that the head was made for. If you're still learning, it's best to take it slow! Do one new thing at a time, or you're just going to end up with an expensive mess.

[93accordfreak]

The F23 has a 97mm stroke instead of the F22A's 95mm, so that's something you'll need to take into consideration when swapping the heads as well. Your compression ratio is going to change. Swapping the entire F23 (if you have a complete engine) may not be a bad idea unless you're ready to start calculating compression and clearances.

[RicedButFast]

yeah your right. i guess ill just throw the whole f23 engine in my cb. i was just tryna find a way around doing the obd2 to obd1 switch and fucking with wires nshit plus a new ecu from a 94-95 ex accord. but hey since there is no easy way out i might aswell use the engine. thanks again.

[deevergote]

I would just sell the F23 and put the money into the F22A... more potential overall, and far less of a headache.

[F22A90]

The F22A head does bolt onto the F23A block. I just did the swap in my 1990 CB7!
All you have to do is buy a new head gasket for the F22 and swap the head over.Take the oil control orifice out of your f22 block and screw it into F23 block. All F22A head passages and ports line up with F23 block. You could always compare the F22 head gasket with F23 head gasket and you will see that everything lines up. I did this swap because I figured that since the F22A head flows much better than the F23 head,why not mate this head to a larger bottom end to get more torque and horsepower than a stock F23 engine. You do gain a little compression as well(8.8:1 compression - 9.3:1 with F23 Vtec bottom end)

[SEXXIILADY712]

9.31 compression u'll have
not worth it

[turboAccordHSF]

9.31 compression u'll have
not worth it

might not be worth it but its something out of nothing!....like its saying why buy a DC header for our cb if the Bisi one gives more HP?.....you have to do what you want to do...lol....

any who....I heard a F22B Head on a H22A4 Deck Block Boosted!! Turbonetics T3/T04E 60 trim turbo Custom SFP intercooler and piping....that sounds good.....but you got a F23 block and a F22 head which like Deeve said its Possible but with mods and always expect the unexpected....

[GenshiAri]

I was thinking about the f23 block f22 head for my next project (have to fix my just completed one though) I got and entire f23 with right at 100k miles for 250 bucks and I just happen to have a rebuilt head for a f22. I think it will be worth it

[Accrdwgnguy]

The F22A head does bolt onto the F23A block. I just did the swap in my 1990 CB7!
All you have to do is buy a new head gasket for the F22 and swap the head over.Take the oil control orifice out of your f22 block and screw it into F23 block. All F22A head passages and ports line up with F23 block. You could always compare the F22 head gasket with F23 head gasket and you will see that everything lines up. I did this swap because I figured that since the F22A head flows much better than the F23 head,why not mate this head to a larger bottom end to get more torque and horsepower than a stock F23 engine. You do gain a little compression as well(8.8:1 compression - 9.3:1 with F23 Vtec bottom end)

Sounds like you what you are talking about. I was gonna say to compare the head gaskets to the mating surfaces.

Also which head gasket did you use, the F22A or the F23? If I remember correctly, the F23 has larger bores. A stage 2 cam with that extra compression would make some tire melting fun.

[rockdillardCB7]

whats the diff bewteen the f22 and f23

do they both come dual cam and would you be able to drop a b-series v-tech head on them....

[bcjammerx]

f23 and f22 are both sohc

f23 has NON-PERFORMANCE oriented vtec...and the head doesn't flow well. It is a poo poo head...

9.3:1...how is that bad? That's a bump up in compression and that WILL add power alone.

This is right along with keele's idea of f22head on h22block...cept this has 2.3 instead of 2.2...100cc's not much...but still...a little bit.

[deevergote]

do they both come dual cam and would you be able to drop a b-series v-tech head on them....

You can't put a B series head (vtec, not v-tech) on an F or H block without major modification... if at all.

You have an Accord. Get B and D series stuff out of your head... that's not our game.