Search results

  1. D

    Best manual transmission for 350 small block

    So i have a 1991 gmc sierra 1500 with a stock small block 350 and it has the hm290 manual transmission i rebuilt 2 weeks ago So im plannin on putting a little more hp on the engine about 300 to 400 hp but i wanted to keep it manual but I heard these transmissions are wimpy My question is it...
Top