Lead Free Gas

[Robert Dabkowski]

No straight answer to your question. Cdn. M152s came from the factory with hardened sodium filled valves and hardened valve seats so you SHOULD be ok without adding a lead replacement BUT who knows if/when your engine was rebuilt and if so ... were hardened vave seats etc installed or the cheaper "regular" ones. I guess that its really your total yearly mileage/hours that determines the need. If you're only driving to 3-4 parades/shows per year then I wouldn't bother. Or pull the head once a year and check the valve seats condition. A new head gasket for a Dodge flat head six should be easy and cheap to find, just make sure that you use a truck gasket with the extra cooling channel at the front face. Robert in Toronto