Who has the Highest Mileage Slant-6??

not the whole truck but the slant i limped on for a year or two came out of my buddies 81 d100 with 450k on it when it was swaped for a 318 the slant smoked badly but ran for prolly 20 maybe 30k when it was in my dodge and i pulled it cause it didnt like starting when cold but with some ether it would fire up