I have a 1947 GMC 300 with a 248 in it. I currently have a GKT-134 crash box in it.
Do I have any other options?
Im basically trying to decide whether I should keep the 248. If I can bolt up a more practical transmission that would allow me an extra gear or higher gears then I think I justify keeping the stock motor. Im just looking for a little extra speed. (55-60)
Thanks!
