477 In A P/M

Discussion in 'Manton Push Rods Top Alcohol Tech Questions' started by TOL, Aug 18, 2017.

  1. TOL

    TOL Active Member

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    Has anyone ever tried a 477 deal (or close) in a blown P/M?

    Thinking around 4.500 bore and 3.750 stroke, and raise the rpm's.

    How did it work out for you? Pros/Cons?

    Strictly outlaw, no particular rules. C-screw. Mixture of 18th and 1/4.

    Thx.
     
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  2. rb0804

    rb0804 Member

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    Funny you should ask, I was looking at the qualifying sheet the other day from the west coast pro mods and there are several people 5 or 6, that are claiming some where in the 452-482, which I thought to be odd, but then again I'm not familiar with their rules package either. Most fast alky dragsters run a 471-477 just like your thinking.
     
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  3. TOL

    TOL Active Member

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    Thanks Rob. Will check out the WCPM gang. Hey drop me an email and let me know how things are going.
     
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  4. bruce boland

    bruce boland Member

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    Ill let you know after the Shakedown, Trying a 477 with a screw in a Pro Mod. I know a few guys out west use the same combo with good results.
     
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  5. TOL

    TOL Active Member

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    Thanks Bruce. Will be interested to know. What do you figure you will shift at? Best of luck at the Shakedown !
     
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  6. sean70ss

    sean70ss Member

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    From what I have learned from a few of the top alky guys is they shift between 11,200-11,500 because anything lower slows them down and if it is ran with less rpm it takes longer to get back in the power band..
     
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