Comments by "Bo McGillacutty" (@Mrbfgray) on "How Sodium Filled Exhaust Valves Work - Kia Stinger GT - Best Engines" video.

  1. My 1966 Chevy 327 had sodium filled valves stock.
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  2. My '66 Chevy 327 had sodium filled exhaust valves. Ran the heck out of that motor for two decades.
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