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Plymouth flathead six with dual smithys

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Uploaded by on Nov 7, 2007

New dual exhaust installed with a pair of smithy mufflers on a '50 Plymouth flathead six 230.

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Autos & Vehicles

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Uploader Comments (idahoblueskies)

  • Would this have Babbits? Also, how hard is it to find a similar Plymouth engine?

  • No babbits...

    Most folks consider these engines boat anchors, you should be able to pick one up in just about any junk yard. They were also used in combines, welders, water pumps, airport tugs, etc. NAPA still carries most of the engine parts too.

  • how does the twin carbs affect the fuel mileage?

  • Still gets 19mpg on the highway...

  • Where do i get one of those intakes for mine?

  • My intake is a vintage Edmunds, found on ebay in 2001. You can buy a new Offenhauser version for about $250 from Summit Racing.

    Pete

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All Comments (34)

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  • I have never seen stuff like that... Where do you find those parts...?

  • sounds great

  • @yamahonkawazuki exactly ... thank you for that other info i forgot to place that in there

  • @BlackLabelFREAK yes twice as many jets. BUT each jet only has to work half as hard, so if you drive NORMALLY really no change. drive hard, then yes youre right. it will allow you to run out fairly quickly.

  • another thing to do to the flathead six is to balance the rotating assembly. there is a guy onlinecalled "manifolds by moose.com" he has some real cool manifolds for flathead mopar sixes and stovebolt chevy 235s. check out his stuff

  • i have basically the same engine in a 40 plymouth coupe and the gas mileage did not change a whole lot from stock. got 17 mpg stock and now get 15-16 mpg now.people who have multiple carbs don't really care about mpgs anyway. depends how you step on the loud pedal

  • @idahoblueskies Thanks! I've wanted to build a '27 Ford hot rod for quite a while but have been waiting to find a cool engine, this is it then. Somebody coulda built this in the pre-'53 hot rod scene

  • @DamnStraightM35A2 ok in each carb theres2 to 4 jets more jets more gas this car has dual 4 jets so thats 8 so that will empty your tank faster im a auto mechanic at wyotech in laguna beach ca

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