f20 swapped to f22 questions

matrad · 08-06-2009, 04:16 PM

im new to honda in general and i enjoy the ease of working on them.
im normally working on a KA24 nissan or 4g63 mitsu.
anyways me and my bro are repairing the AP1 f20 s2k we purchased
come to find out cylinder 3 had bad compression due to side walls scarred up(bad rings or FOD). so local guy sells me block for f22. this is what i know
bore between the 2 is the same. only difference is the stroke. so my guess would be using same pistons in the f22 as the f20 but different crank and rods.

This is what i need to know
1. can i swap the internals(crank rods pistons) from f20 to f22?
2. if not what is the process of boring the f20 since is has FRM wall lining?
3. what is compatible between the 2 engines? because they seem almost identical?

any professional help would be greatly appreciated

turbosix · 08-06-2009, 04:32 PM

they definitely have different part numbers..

matrad · 08-06-2009, 04:36 PM

ya i checked that already
i would like to know if it would work. im gonna start measuring everything up.
maybe someone can tell me what will and will not work

MutantCheese · 08-06-2009, 08:25 PM

My friend has a f20 block for sale $300 (New Orleans) if the f22 block doesn't pan out.

matrad · 08-07-2009, 03:09 PM

what is all included with this?

MutantCheese · 08-07-2009, 04:08 PM

PM sent

matrad · 08-07-2009, 06:22 PM

i think im gonna try the f22 block, whats the worst that can happen? things dont fit right? the way i see it the f22 motor only has different crank+pistons+rods because they lowered the compression and increased the stroke. if you look at this website towards the bottom it shows they make the same kit for both blocks.
http://www.nolimitmotorsport.com/bri.../f20cf22c.html

this is why im convinced that f20 internals will fit in a f22 block.
if anyone has a reason why these 2 should not wed please speak now or forever hold your peace.

matrad · 08-07-2009, 06:30 PM

I will have leftover parts after this for sale

08-06-2009, 04:16 PM	#1 (permalink)
matrad Junior Member Join Date: Aug 2009 Posts: 5	f20 swapped to f22 questions im new to honda in general and i enjoy the ease of working on them. im normally working on a KA24 nissan or 4g63 mitsu. anyways me and my bro are repairing the AP1 f20 s2k we purchased come to find out cylinder 3 had bad compression due to side walls scarred up(bad rings or FOD). so local guy sells me block for f22. this is what i know bore between the 2 is the same. only difference is the stroke. so my guess would be using same pistons in the f22 as the f20 but different crank and rods. This is what i need to know 1. can i swap the internals(crank rods pistons) from f20 to f22? 2. if not what is the process of boring the f20 since is has FRM wall lining? 3. what is compatible between the 2 engines? because they seem almost identical? any professional help would be greatly appreciated

08-06-2009, 04:32 PM	#2 (permalink)
turbosix S2000.com Sponsor Join Date: Jan 2009 Location: dallas Posts: 2,083	they definitely have different part numbers.. __________________ turbosix.net 1984 buick regal t-type . 2003 gpw s2000 Are you lacking coverage for your prescriptions? Click HERE to print a free discount pharmacy card! Save 10-60% on most medications at 60,000 pharmacies nationwide at no cost to you.

08-06-2009, 08:25 PM	#4 (permalink)
MutantCheese The Cheeziest! Join Date: Aug 2008 Location: New Orleans Posts: 506	My friend has a f20 block for sale $300 (New Orleans) if the f22 block doesn't pan out. __________________ 2008 S2000 New Formula Red (K&N FIPK; Berk Ceramic coated SS headers; Berk SS HFC; Tanabe Concept G SS exhaust; Hondata toda Reflash; OEM front lip); Eibach Prokit lowering springs 2006 Civic Si NBP w/hfp kit (Too many mods to list here) 2008 CR-V EX-L w/Nav Enjoy your midlife crisis...you only get one! Visit: www.GNOunderground.com

08-07-2009, 04:08 PM	#6 (permalink)
MutantCheese The Cheeziest! Join Date: Aug 2008 Location: New Orleans Posts: 506	PM sent __________________ 2008 S2000 New Formula Red (K&N FIPK; Berk Ceramic coated SS headers; Berk SS HFC; Tanabe Concept G SS exhaust; Hondata toda Reflash; OEM front lip); Eibach Prokit lowering springs 2006 Civic Si NBP w/hfp kit (Too many mods to list here) 2008 CR-V EX-L w/Nav Enjoy your midlife crisis...you only get one! Visit: www.GNOunderground.com

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08-06-2009, 04:36 PM	#3 (permalink)
matrad Junior Member Join Date: Aug 2009 Posts: 5	ya i checked that already i would like to know if it would work. im gonna start measuring everything up. maybe someone can tell me what will and will not work

08-07-2009, 03:09 PM	#5 (permalink)
matrad Junior Member Join Date: Aug 2009 Posts: 5	what is all included with this?

08-07-2009, 06:22 PM	#7 (permalink)
matrad Junior Member Join Date: Aug 2009 Posts: 5	i think im gonna try the f22 block, whats the worst that can happen? things dont fit right? the way i see it the f22 motor only has different crank+pistons+rods because they lowered the compression and increased the stroke. if you look at this website towards the bottom it shows they make the same kit for both blocks. http://www.nolimitmotorsport.com/bri.../f20cf22c.html this is why im convinced that f20 internals will fit in a f22 block. if anyone has a reason why these 2 should not wed please speak now or forever hold your peace.

08-07-2009, 06:30 PM	#8 (permalink)
matrad Junior Member Join Date: Aug 2009 Posts: 5	I will have leftover parts after this for sale