i have a 99 accord and i want to put a f20b in it but i dont know if my f23 trans will bolt up to a f20b if anyone could tell me this it would be awsome and speed up my project

 

Yes your F23 transmission will bolt up. All H/F series transmission are interchangeable(except the F20C and F22C of course).

How ever the gears in a F23 transmission are about as long as a giraffes neck, which will severely decrease the performance of your F20B.

 

so is it better to use the f20b trans or is there a better one to use?

 

Yeah the F20B transmission(T2T4) is probably the best, but also one of the most costly($900+).

A H22 transmission(M2A4 w/o LSD M2B4 w/ LSD) would do the job well though.