im not a hot rod guy, or very knowledgeable about engines engine sizes etc. i can however fix just about anything i put my hands on. with that being said, i recently came into possession of a '50 dodge coronet with a flathead 6 with the gyromatic tranny, the body was mostly restored, no major damage, it needs a paint job, and some engine work. the original engine has 69k miles. not bad! i have found it needs some electrical and carb work, and this car will be running soon. it was a daily driver a few years ago. one of my club friends has advised me to not invest much money in the engine, because i could do an engine swap with an engine that parts are easily attained at affordable prices. i see his point. but i dont do fabrication, he does. still that leaves us with a few issues, which engine will mount up to the transmission without having to replace the transmission? i had an old volare as my first car, so i have experience with the slant 6, i love that engine. im sticking with mopar regardless of the engine i may put in the car. ive found a jasper rebuilt slant 6 running for less than 300 including the automatic tranny ive read a few posts here on engine swaps from a flathead 6 to something else, everyone has an opinion. so hopefully i'll get some clarification on the subject. any suggestions / advice? difficulty ahead? perhaps suggestions on engine trans and rear axle? thanks!