440 swap from small block
if you go with a stock style oil pan make sure you either install baffels or get one with because when you stand on it the oil will rush away from the pick up and starve the engine causing premature bearing failure, i learned this from expensive experience. or install a deep sump pan and modify it for steering clearance. schumacher makes a easy install kit headers block hugger type to keep pipes under car and mounts for any k member type all at a good price. good luck have fun keep the shiny side up and if both are shiny just pull the wheels and show it lol.