Found this 383, worth it for my 65?

Shaun65dart said
Thanks for those replies and steering me in the right direction. As for small block, what’s a good choice? 318/340/360 I see some people mention magnum? I would be wanting around 400-450 horse. I’ve built Chevy and ford engine, strokers and what not but never a Mopar engine. What best to look for and what should I stay away from?

Considering your location, you should have NO problem finding a usable 360LA or 5.9 for a couple hundred bucks, easy. If I were you, I'd either try to find a roller 360 LA motor, or a good used 5.9. Both of those should be fuel injected and would likely have great cylinder bores to start with. At that point, you could maybe get away with a simple re-ring and bearing 'rebuild.' Slap in a decent cam and a good set of cylinder heads, and you're at your goal, easy.

Shaun65dart said
My previous car was a 63 Ford Fairlane coupe. I did a shock tower and coilover suspension conversion on the front end. Built a 347 roller cam stroker. I’m not afraid to dive into the dart with sheet metal fabrication or anything like that, I just haven’t been around the Mopar world haha

If you're into doing that type of work, the big block conversion may be worth looking into. It ultimately depends what you're going for and how you want to get there. If 400-450hp is your only goal, small block wins everyday of the week. If you want something unique and don't mind the extra headaches that come along with it, dare to be different and go big block.