Chris mathiesen

I am currently looking for transmission conversion options for my 1946 plymouth p15 club coupe. I am currently running the stock flathead six. I originally wanted a late model automatic overdrive transmission. I keep hearing there will be a reduction in horsepower. I have seen a few people using the t-5 transmission conversion. Does anyone have any REAL experience with the t-5 transmission conversion? I am open to other transmission swap options as well. My goal is to reach freeway speed of 65 to 70mph. Any guidance would be appreciated. Thanks!

I posted yesterday regarding a 383 conversion in my 1946 plymouth. My reasoning for the swap was for speed. I currently have the stock flathead six with a 12 volt conversion and the car is maxed out at 55 mph. I was thinking about using the wilcap transmission adapter and bolt in a 700r4 overdrive transmission. I was wondering if this transmission conversion will get me more speed. What other things could I do to get the stock flathead to hit 65-75mph? I have been told the transmission conversion with a change in the gearing would help. Just looking for some guidance. Thanks!

I have a 1946 plymouth club coupe. I was thinking about swapping the flathead six for a 383 out of a 1966 dodge polara. I know I will have to swap out the rear end as well. I am not very experienced at this kind of thing. Does anyone know if the rear end from the 1966 dodge polara would work for my 1946 club coupe?

Does anyone on here have or know someone who would be willing to sell a rear hub for a 1946 plymouth. I cannot find this thing anywhere.