Hi, i have a 38-48 flathead. the one with the bellhousing cast into the block with the closed drive gearbox. is there any adapter or a way to make it open drive to use a normal propshaft with the gearbox, or is there an adapter or a way to use a different gearbox? (maybe a C4 auto box) any home modifications i can do before i spend alot of money. Im in England and i dont think theres anything i can just buy as an adapter or conversion kit over here. Only place i can think of is Flat O Matic but after shipping and everything it is going to be real expensive. would prefer to go auto because im lazy . I will stick with my manual box for now if theres an easy way to use a standard prop.
I'm not sure on auto transmitions. sorry
What I find is popular to run behind flathead motors if you have the funds/will to do it is to use a T5 tranny from a Chevy S10. There are many books on doing this swap.
there are adapters for almost any popular transmission to bolt to the flatty. If you do a search on the net for them something will come up. They range in price from a couple hundred to a couple thousand depending on what tranny your adapting. Ebay is another option. Hope this helps