Picked up a 64 Valiant

You want power, get a 360. You want a slant, get one and understand that it was designed to do: get you down the road with minimal maintenance and maximum economy, for its day. I just cleaned the bottom on a 273 cast in 63. Mud is the correct description but mine had turned to shale as it was so old and dry from sitting. Nice thing was the pan was rust free inside!