Yes of course. All Chevy engines are interchangible with transmissions. For example, you can have a 305, 307, 327, 350, 400 with a turbo 350, turbo 400, or 700r4 big block are also the same
pour some transmission fluid in the dipstick hole 2 litres will do it. you may have a leak, any evidense of red fliud at the vacuum pipe that connects the modulator valve to inlet maifold, at...