Block needs surfacing

[Gyrodoc]

Need some help guys. Bottom radiator hose split, engine got real hot very fast. The head gasket blew between #3 and 4 cylinder. I bought a new gasket cleaned everything up as much as possible installed gasket and head torqued to 55lbs. I decided to do a leak down test before adding water and oil.
Head was leaking between all cylinders. I removed head since there wasn't anybody nearby that could resurface the head I glued some emery paper on to a large ground surface plate. Every once in a while I would turn the head over and noticed I was making pretty good progress. I turned it over and saw a crack between cylinder #2 and 3 from water port to head blot to other water port.

By the way this is a model B engine. I ordered a 5.5:1 head from Snyder's and the gasket they recommend for the B Block. Plugged the steam holes as recommended. Installed the gasket and head torqued to 55lbs. Did a leak down test. Still leaks between all cylinders.

My question looks like the block isn't level? If I remove the valves does anyone know how to resurface the block with engine in car, or should I just remove the engine disassemble and do everything that needs to be done.

By the way this engine has been running great and was overhauled about 10,000 miles age about 3 years.
Richard