f20 block h22 pistons

A1ex · Post by **A1ex** » Sat Nov 17, 2012 9:04 am

So,

Am I right in thinking the F20 block is the same as the F22 but destroked? So the aftermarket h22 pistons would fit & as the block is already cast it wouldn't need sleeving to fit aftermarket pistons like JE or Wiesco?

And does the H22 head bolt onto the F20/F22 block?

Post by **Lude-dude** » Sat Nov 17, 2012 9:20 am

wouldnt a block for a single cam engine be physically smaller?

I cant see it myself thought the engines were quite diffrent

your thinking frankenstein engine? the 2.3i seems to be more of an option

A1ex · Post by **A1ex** » Sat Nov 17, 2012 9:23 am

The f22 looks very similar to me;

http://www.ebay.co.uk/itm/370487252881? ... 97.c0.m619

was thinking f20 as they're a bit easier to find.

Wasn't thinking a boostenstein, was thinking sillhighcompressionstein.

secla · Post by **secla** » Sat Nov 17, 2012 9:50 am

dohc head wouldnt bolt up to a sohc block.
the block will have a smaller surface area

mercutio · Post by **mercutio** » Sat Nov 17, 2012 9:57 am

there is a dohc f20 as there is a sohc f22

A1ex · Post by **A1ex** » Sat Nov 17, 2012 10:10 am

So would the dohc f20 / f22 block be compatable with the h22 head?

Post by **Lude-dude** » Sat Nov 17, 2012 10:18 am

the dohc f20 is blue top vtec? so yes it would fit, it already has one attached

but rare engine, and its still frm?

A1ex · Post by **A1ex** » Sat Nov 17, 2012 10:55 am

Lude-dude wrote:the dohc f20 is blue top vtec? so yes it would fit, it already has one attached

but rare engine, and its still frm?

In which case there wouldn't be much point in using the dohc f20 then. I was trying to figure out if there was a way of getting the h22 head with a iron cylinders without getting it re-sleeved.

Post by **4thgenphil** » Sat Nov 17, 2012 11:37 am

right f series!
f20- prelude engine, iron sleeve, SOHC, the head is similar to that on a h23 non vtec!
f20b- accord engine, basically a de stroked h22, same head, FRM sleevs
f20c- s2000 engine, again frm sleeved but more closley related to the k series runs backwards compared to a h series

F22a, f22b1/2, f22z- sohc non vtec and some vtec head, iron sleeves (same crank/stroke as a h23)
f22b- dohc vtec head, iron sleves
f22b1/2 sohc, some vtec some not, iron sleeves
F23- longer stroked f22a, again some vtec, some not, iron sleeved

f22c- us spec f20c same engine as our s2k more with a longer stroke!, frm sleeves the lot!

h23, dohc FRM sleeves, same block as the h22, f20b, h23 vtec
h22- as above with vtec head
h23avtec RARE! basically a combination of a h23 crank and rods with a h22 vtec head!

so to answer your question, the pistons out of a f20b will work in theory, and potentially from a f20/22c (you can research that though

Post by **Lude-dude** » Sat Nov 17, 2012 11:44 am

thought f22b is non vtec, never seen the f20 dohc vtec in a prelude

basically 2.0 single cam non vtec in base model 2.0i, and 2.2 non vtec we get in the prelude imports