does anyone know some specs on a b20 cause i was thinking of swap it in my 96 civic ex

 

Youll want to get a B16 or B18C1/5 tranny with the b20 engine. The b16 tranny will be hell to drive on the highway with its short gears. The GSR (b18C1/5) tranny is great with its gear ratio and you can still dive on the highway with out revving all high.

If you put a b16 or gsr head on the b20 block you can have a nice little torque monster.
B20B
[ul][*]NON-Vtec[*]Found in: Honda CR-V, Honda Orthia[*]Displacement: 1973[*]Power: 126hp @ 5500rpm[*]Torque: 133 ft @ 4200 rpm [/ul]
[ul][*]Compression: 8.8:1[*]Bore: 84 mm[*]Stroke: 89 mm[*]Redline: 6300 rpm red line [/ul]
Some links to check out...

http://www.honda-tech.com/zerothread/1555476