Hey guys. This is what I found on further teardown and need some help with some questions. Thanks for any help. I haven't rebuilt a motor since high school which was 1988 and I had my dad's help back then.
This is at the bottom of the cylinder. The crank had a couple marks that look not so great either. My questions are:
1. Is the block still usable?
2. If not, I also have a 360 that I'm wondering could I use the block and rebuild it with the parts from the 390 since I thought they were the same block?
3. Can I use the crankshaft from the 360 with the 390 parts?
Thanks again for any help with this.