Re: #4 & 7 Firing order swap - NCRS Discussion Boards

Re: #4 & 7 Firing order swap

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  • John Chesher

    Re: #4 & 7 Firing order swap

    HotRod magazine tested the swap with a dyno and only came up with 8 additional HP on a very modified engine. They're take: not worth the trouble for a street engine, only needed for racing, where a few extra horses could make the difference in winning and not.
  • Wayne W.
    Extremely Frequent Poster
    • April 30, 1982
    • 3605

    #2
    Re: #4 & 7 Firing order swap

    My `31 an `33 Cadilacs have the 4,7 swap. Not a swap for them though.

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