Ive been looking on here and people reffer to the 6.2 by different letter codes. Id like to know because im starting to stockpile parts and i dont wanna buy parts i cant use. i think i read about injectors being longer or something. I have a 86 blazer with a 6.2 and im trying to buy a 6.2 or 6.5 to put in my older blazer. i almost got one on ebay for 120 buck but i got out bid. does anyone have any 6.2 or 6.5 for cheap. also, what would i need to run a 6.2 on an engine stand. if i get a spare engine id like to do some testing and modifying on the stand b4 i pull my old engine.