gee, the jdm k20a and 2zzge is more expansive than f20c?! theres also the f22c, b18c type r, b16a, these are all very good engines, not sure bout the price though b series and k series cant be compared.. k series does 12sec on an 92 civic hatch and b18c-R does 13 on the same shell.. both stock motor if u can get f20c into a civic.. it will run u 11sec stock motor, its been done before :P