Honda Prelude Forum banner

F-Series Block

6K views 14 replies 9 participants last post by  shaylude01  
#1 ·
Okay, ill keep it simple. I want to pull my h22 block out of my car to start building it. I have been hearing f22 blocks are pretty strong and can take a lot of boost (iron sleeves). Is this true or bs?

I am just looking into what would be the strongest block to toss in that i can make pretty good power on while i build my h22 block. I want to know what the strongest block i can use is (stock, not built). I was hoping for high 200's to the wheels for now untill i build a block, but if their is something that can allow me more than that, then BONUS :) lol.

OR

does anyone recommend i just leave in my h22 block, and do a block build on a different block?

Just need some input here guys. I am very close to the stage where I want to start building a block. Thanks alot.
 
#2 ·
For boost, I'd say an F-Series.

Here's What I have racked up with research. I'm researching and MIGHT go boost. Take your pick for the block.

F/H-Series BLOCK
bore mm/inch
Stroke
comp. height
deck height
head cc


(Closed Deck: H22a, H22a1, H23a1)
H22 OPEN DECK
87mm/3.425
90.7mm/3.570
31.0mm/1.221
219.5mm/8.643
53.8cc
H23
87mm/3.425
95mm/3.740
30.5mm/1.203
219.5mm/8.643
50.0cc

F20

85mm/3.346
88mm/3.464
31.0mm/1.221
219.5mm/8.643
50.0cc

F22
85mm/3.346
95mm/3.740
30.5mm/1.203
219.5mm/8.643
50.5cc
F22B1 & F22B2 has 50.6cc

F23A
86mm/3.385
97mm/3.818
30.0mm/1.181
219.5mm/8.643

F/H-Series Motor Spec
Rod Length
Rod Width
Main Bore
Pin Bore
Piston Volume
Wrist Pin Diam.
Main Bearing Width
Rod Bearing Width


H22
143.0mm/5.633
23.75mm/.935
51.00mm/2.008
21.97.21.98mm/.8649-.8654
-1.8cc (H22a has -1.9cc)
22.0mm/.866
19.9mm/.784
19.35mm/.762

H23
141.5mm/5.572
23.75mm/.935
51.00mm/2.008
21.97-21.98mm/.8649-.8654
H23a +4.3cc/H23a1 -9.9cc
22.0mm/.866
19.9mm/.784
19.35mm/.762

F20A
145.mm/5.709
23.75mm/.935
--
21.97-21.98mm/.8649-.8654
F20a -4.7cc, F20b +8.0cc
22.0mm/.866
19.9mm/.784
19.35mm/.762

F22A open deck
141.5mm/5.572
23.75mm/.935
51.00mm/2.008
21.97-21.98mm/.8649-.8654
F22a & F22b1-b2 -14.5cc, F22b -11.2cc,
22.0mm/.866
19.9mm/.784
19.35mm/.762

F23A open deck
141.0mm/5.551
19.81mm/.780
48.00mm/1.890
21.97-21.98mm/.8649-.8654
-18.0cc
22.0m/.866
19.9mm/.784
15.47mm/.609


F/H-Series Internals
Intake Valve Diameter
Exhaust Valve Diameter
Main Journal Diameter
Rod Journal Diameter


H22
35.mm/1.38
30mm/1.18
50mm (H22a4 55mm)
47.95mm/1.888

H23
35mm/1.38 (H23a1 34mm/1.34)
30mm/1.18 (H23a1 29mm/1.14)
55mm (H23a1 50mm)
47.95mm/1.888

F20
34.mm/1.34
29mm/1.14
50mm
F20a 47.95/1.888 F20b 44.98mm/1.771

F22

34mm/1.34
29mm/1.14
50mm
47.95/1.888

F23a
34mm/1.34
29mm/1.14
55mm
44.98/1.771

 
#3 ·
buy a bare block instead of pulling yours. Much less work.

You can pick up an h23 or h22 block and have the darton dry sleeves put in place (basically a replacement sleeve that is iron but stronger than stock iron). The darton dry are really cheap....like 300 dollars. At the same time, have the mains align honed since you dont really know the condition of the block you bought.
 
#4 ·
Thanks for the info, both of you. Repped.

As far as these darton dry sleeves, are they pretty strong? Im hoping to achieve in the 400whp's some day once its all said and done. Maybe even into the 500's, maybe even more.. it just all depends on where im satisfied at lol. Everyone always tells me, you get use to it and then want to go faster.. so we'll see. But im going to want something thats gonna be able to handle all of that.
 
#6 ·
Im hoping to achieve in the 400whp's some day once its all said and done. Maybe even into the 500's, maybe even more..
lol lol and more lols... hahha its like an addiction... i know it.. but let me give you some advice... set a goal and build it... if not you will never end spending money..... Go to 400whps.. and thats it.... lol.. IMHO... you can believe all the things you need to get that power... we are talking about a large ton of money... i feel you... but try to understand... for my, and this is only my opinion...research for "X" goal, and go for it... if not.. you will never end, and you will never enjoy the car....:xmas:
 
#7 ·
Sorry for the compplete newbbness.... but those come with 4? Or is that one each? Probably an extremely stupid question lol, but i've never looked into what sleeves generally cost.

lol lol and more lols... hahha its like an addiction... i know it.. but let me give you some advice... set a goal and build it... if not you will never end spending money..... Go to 400whps.. and thats it.... lol.. IMHO... you can believe all the things you need to get that power... we are talking about a large ton of money... i feel you... but try to understand... for my, and this is only my opinion...research for "X" goal, and go for it... if not.. you will never end, and you will never enjoy the car....:xmas:
Thanks for the advice. Ill take that into consideration!
 
#8 ·
it comes with all 4. The parts arent TOO expensive if you dont get all top-of-the-line stuff, but machine work really adds up fast...
 
#9 ·
^exactly. the sleeve install usually runs $50-150 per cylinder. just find some one who knows that this is for a performance application and is familiar with putting iron sleeves into aluminum blocks. This way if a sleeve drops and you blow a head gasket or worse then the machine shop can be held responsible and fix the issue. There are also instructions and specs on dartons website.
 
#14 ·
well the flanged ones are not just straight sleeves, they have what i would call a lip. a big lip lol. but seriously unless you wana go insaine hp the standard ones will work fine and be quite durable. the biggest thing is getting a good machine shop to do the work. i had to wait in a line over 2 years long, but it was worth it.
 
#15 ·
well the flanged ones are not just straight sleeves, they have what i would call a lip. a big lip lol. but seriously unless you wana go insaine hp the standard ones will work fine and be quite durable. the biggest thing is getting a good machine shop to do the work. i had to wait in a line over 2 years long, but it was worth it.
oh right, i know what you mean by that "lip" now. I've seen those before.

Im hoping for around 400 - 500whp reliably.