wow nice find:thumbsup: i can remember back in the early 80's in high school small engine shop we use new copper color briggs for learning how to disassemble and rebuild..............
do you have picture of the crank case cover? does it have the 4 bolt holes around the crankshaft. if so, you can bolt on a torque converter at a angle to clear the gas tank. engine would work great for a gocart:thumbsup: