Thanks for jumping in guys. I called the original owner and he said the fan shroud and brackets were all original 348 stuff. The motor is an late 60's 350, two piece rear seal, nothing unusual. I did have and issue with the flywheel when I put a new clutch in it. It had a steel flywheel, and the center cutout was smaller than a cast flywheel so I had to get a clutch disc with the rivits turned around so they would clear the center cut out of the flywheel. The guy that surfaced my flywheel said he sees this all the time, no biggie. Can't answer the bell housing question, all I know it fits the 350 and the Muncie. So the flywheel is an externally balance flywheel. Were the 409's externally balanced also?
I have an altered I drag race so this car is just a fun driver. I am not going to be leaning on it hardly at all. (perhaps only when besides a fat pipe honda at a stop light). This motor is suppose to be a complete QB from a 64. Pictures on the way. If it is close to being real I will be on my way to get it. The car has shorties on it now, so I would be happy with a new set to fit the 409.
I wouldn't be doing this at all except at the ripe old age of 74 I still remember as a young man seeing my first 59 with a 348 tri power and then later a 63 409 at the drag strip the WOW factor was off the chart for me. Never lost that feeling. Let's face it, a good 383 will make more HP than a 425/425 dual quad 409, but it is still just a small block and it will never have the WOW factor of opening the hood and seeing a 409. Maybe I am just an old man lost in the past but what the heck, it is fun for me.