About ready to pull the trigger on a 1951, GMC, 650 v-6 diesel w/period sleeper. My questions: did the v-6 come stock, I thought the 650 only had 4-71 or 6-71. How do i id the engine as either Detroit V-6 or GM Toro-flow v-6. any advice on Toro-flow. Understand that it is a gas to diesel conversion. Serial number HDRCR 6533389. Thanks for any help Chariotracer
