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Thread: 248 exhaust pipe size for dual carb/exhaust?

  1. #1
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    248 exhaust pipe size for dual carb/exhaust?

    Hello to all the straight 8 guys. I have a 1941 248 with the dual carb/exhaust and I would like your opinion on what size pipe I should run for dual exhaust pipes. would 2" be good?

    Thanks, Jeff

  2. #2
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    I took off the "Y" pipe ,and installed dual exhaust on my 40 with the 41 manifolds. . I used 2 inch,and stock mufflers, and it sounds and runs GREAT !!
    Joe T
    37Buick coupe /455 powered
    40 Super convert
    72 GS455 convert 13.0/105
    69 Buick Sportwagon
    92 Road,aster wagon
    04 Rendezvous

  3. #3
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    I have custom headers running to 100% stainless 2" all the way back. No H pipe. Sounds, looks great. I forget the beakdown for which cylinders go to which side but if you need it I can "trace" the headers.

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