PROBLEM SOLVED!
the early engines, 81-84 domed top piston engines. have the timing cover thats fatter to accomedate the dual row timing chain and have a shorter oil pump. says right in the melling catalog. New oil pump will be here tomorrow.
So he ordered the wrong one for you then
![Shake :shake:](https://board.marlincrawler.com/Smileys/marlin/shake.gif)
I hope he feels like a douchebag!