question about 318 LA block interchangeability

I use some JB and drive thru the summer....
I'm in South Florida. Summer is when I don't drive the car. Timing is good so I can get it ready for winter. Don't think JB weld would hold for too long anyhow..

Thanks for all the info guys! This helps a lot. Now hopefully the teardown doesn't reveal any surprises. Coolant doesn't lubricate bearings too well.