Purchased a 360 to replace my wore out 304 in my CJ when I was an unlearned newb. Purchased as a short block (which appears to have been rebuilt; cross hatch in cylinder walls) with a box of parts. I'm trying to put it all together and trying to find the right parts that are missing from the box. The main problem is I have no balancer or flywheel. I have no info on what this engine came out of, year of manufacture or anything. I have read a lot about these externally balanced engines and that the right flywheel and balancer is important but most forums are conflicting in info (go figure). In searching for a flywheel and balancer, I really just need stock replacements as I don't intend on high rpm racing but primarily low rpm rock crawling, but all I can find is high $$ race quality speciality parts. Budget is a factor also. Some even offer different parts with different balancing based on the year of the engine. What are my options? Something like:

1. Look for codes/numbers that spec my engine so I can find exact match parts? But I understand these may still not be balanced right and should be taken to a machine shop to be checked for proper balance? Or are spec matched parts good enough for a low rpm application without additional balancing?

2. If newly bought parts need to be match balanced anyway, can I save some coin and just take the flywheel and balancer off my wore out 304 along with the 360 crank to a machine shop and have all match balanced?

3. Sell 360 and parts and use the money to start a Chevy 350 swap?

I've had this engine for a few years and all the lack of balancer and flywheel has kept it on the stand all bagged up. I'd like to get it going if possible.

Thanks for all info and help,

-jim