F22B block with H22a head?!

mart609 · Post by **mart609** » Wed Jul 16, 2014 8:27 am

I've been thinking about this lately. what kind of figures are we looking at putting at h22 head on a h23 block?

Post by **Drax** » Wed Jul 16, 2014 12:13 pm

a useful page for this Davey..
http://www.zealautowerks.com/hfseries.html
*bare in mind this calculator is not 100% accurate*

I am building a block with an f22 crank in a h22 block, using f22 rods and standard jdm h22 pistons, should get est. 11.64 compression plus a little extra from the skimmed atr h22a7 head.

I may even go for a layer 1/2 head gasket for higher compression, you could do the same if you do this route or maybe get a set of atr/type s 11.1 pistons, there's lots routes to go

Post by **4thgenphil** » Wed Jul 16, 2014 4:48 pm

Id stay away from type s pistons on this build, there have been a few that have blown the ring lands in the states although they ran good times before they went!

Post by **DaveyBa8** » Fri Jul 18, 2014 12:54 am

Ohhhh I see from this the F20b has the 85mm bore aswell,
By using the f20b piston in the existing F22b block I should see good gains with a H22a head.