Welcome to the forum. I will chime in with the same thoughts as the others. It is a unique motor with a niche market that looks great in an open wheeled car with no hood. The 348 I had was a truck engine and are more common and less desirable because of a few internal differences and people like numbers correct stuff doing a resto. If you don't have any intention of using it yourself I would sell it and pocket the money.I would guess Roger is real close on the $1000 range, maybe a bit more. If you do sell it, the original distributor and carb are high selling points. The dist. is unique to the 348/409 family and the reproduction ones aren't that great. If you want a motor to learn on the 348 will be an expensive one to start with and the way the block is designed, it's different than most every other motor out there anyway for installing the pistons. I would estimate you would tie up 3k in parts and machine work pretty fast.I recently sold mine and I'll tell you it's a bugger to try to sell a rebuilt engine, people don't trust you. I would agree with Driver50x on finding something cheap to learn on, I know I had to redo my first engine twice