1987 Dodge D150 with a 318.Block is cracked and leaking at a busted freeze plug.To big to fix.

Will a 360 use all the 318 accessories in the truck or is anything different(oil pan)?

Balance different from 318 to 360 (for converter's sake)?

Are the LA heads exhaust ports the same dimensions as the magnum exhaust ports?

Would an 87 truck tranny be a lockup converter?

Thanks in advance.