http://www.turbomagazine.com/tech/0609turp_…uild/index.html
die kurbelwelle ausm prelude 2,4 passt in den f20c 
...edit:
das hier finde ich allerdings nicht so gut:
Combining the K24 crank with H22a rods and pistons gave the newly revised S2K engine a new rod ratio of 1.44:1 versus the factory S2000 ratio of 1.82:1. Numbers show the piston speed on the stroker motor is significantly quicker, while the factory S2000 is a lot slower
