Hey Charktree, you have a 4G15 in a 1985 Dodge Ram 50? That's a SOHC 4G15 displaces 1.5 L (1,468 cc) with a bore and stroke of 75.5 mm x 82.0mm. How the heck does that engine move that truck, real slow lol? Could it be you made a typo because I am pretty sure your engine is a 2.0L or a 2.6L