>From: ChiPieAlandPaula@xxxxxxx
>Reply-To: mailing-list@xxxxxxxxxxxxxxxx
>
>Hello All,
<snip>
>The answer was that the valves were
>chromium plated so they would not wear prematurely. He did say that this
was a
>"truck" version of the 413.
>My question is simple. Was this a brushoff from the mechanic? If not, is
it
>possible that all 413 were constructed in this manner? Comments?
My understanding is that all the 413 / 440 engines have hard valve
seats, so that your only problems with running unleaded are hose/gasket/
rubber fuels system parts, and not being easily able to make design octane.
I find running unleaded the engine makes a slightly louder sound, and
unleaded is supposed to burn a little hotter, but I don't think there're any
other detrimental effects.
-Kle.
'69 Crown 4DHT
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