Are the mounts on the 4200 vortec the same as the 250 I6? I am checking to see if I do need to actually change the transmission, or what adapter could I use to achieve this? I am not sure what transmission I am using as it isn't what came stock in my chevy.

It is currently a manual 4-speed and my truck came stock with a 3-on-the-tree.

Anyone know?

Last edited by Jerome; 03/13/12 01:18 AM.