Late 80's /6 swap to 73

You will need to swap the oil pan, oil pump pickup, and the motor mounts from your 73 for sure. If the truck dipstick is in the oil pan, you will have to swap the dipstick and tube from your 73. Fortunately, the boss for the dipstick tube is in the side of the truck block, all you have to do is drill it out to fit the tube. Not real sure if the cast crank slants were externally balanced or not. Find out if the truck was hooked to a 727 or a 9 series (904,993,999) tranny. If it was a 727, you will need a converter and flex plate from an 80's /6 car. If it was a 9 series, use what is on the truck motor. Hope this helps.