In Japan, a Tuning Magazine called Hyper Rev, just published a story.
Apparently, using HONDA OEM PARTS , they were able to make a 2.0 L K20a into a 2.3 L. TOP FUEL JAPAN, did it and they are soon going to be offering this as KIT.
These motors are 86 mm x 96 mm using b16b rods. In case you don;t know, B16B pistons infact ARE longer than B18C/C1/C5 rods. They're actually the longest B series rods. The exact legnth is unknown.
They dynoed this setup in a Civic Type R and saw a 50 HP gain with whatever else they had in there. Keep in mind, that they revved it to 9000 RPM with no problems.
Tomorrow check back and I will post scanned pics of the article in Japanese.
Some food for thought...
After looking here, http://www.raceseek.com/honda_specs.htm
the only crank that is close to 96 mm is the h23a1 and h23a4 which is 95mm out of the 92-96 prelude and 97-98 prellude.
Any ideas about converting the crank to a chain? Journals?
The length of b16b rods seems to be impossible to find. I cannot get much info on the cranks as well.