2-strokeDD
Member
Yes the fuel injection pumps were different. The 3150 used an inline pump with scroll metering . The 3208 used a V pump with sleeve metering . The V pump was a lot more sensitive to fuel contamination. The 3150 was 573 C.I. the 3208 was 636 C.I.. The 3208 had a beefier crankshaft and was less prone to breakage then the one in the 3150 . Both of them were rated at 147 PTO or 175 flywheel in the 2255. It was very easy to get way more out of them with just the turn of a screw. Much over stock and the O/U couldn't handle it. The 3208 used in the 4-150 and the 4-175 were rated at 175 flywheel horse. The 4-210 was rated at 210 flywheel horse. The 4-225 was turbo charged and rated at 225 flywheel horse. The 3208 also had a turbo charged 250 flywheel horse used in medium duty trucks.
