How do you tell a 4g63 n/t engine from a 420a? I am looking for a block from a 4g63 n/t. I found one in a junkyard that came from a galant that looks pretty much the same to my walking tsi ... had DOHC 2000 on the valve cover. Everything was same besides no turbo setup. Did galants ever come with a 4g63 engine? I've never seen a 420a engine before so how do they contrast in physical appearance with a 4g63? Any info will help b4 i make this purchase. Thanks