65 side exhaust

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  • Bill W.
    Extremely Frequent Poster
    • March 1, 1980
    • 2000

    65 side exhaust

    Too part question . I have heard stories about new or repro. side exhaust not sounding correct . I have started the restoration on my Rough 31.000 mile BB with side exhaust . My orig. pipes still have good chrome , the stainless part is very good and the header pipe is solid but rusty . I also have a new set I bought from G.M. in the 80,s Will they sound the same ? 2nd question I am thinking about taking my side pipes to redi strip along with my frame . Has anyone done that ? My concern is the baffling inside the pipe .
  • Larry M.
    Extremely Frequent Poster
    • January 1, 1992
    • 2683

    #2
    Re: 65 side exhaust

    Originally posted by Bill Williamson (3245)
    Too part question . I have heard stories about new or repro. side exhaust not sounding correct . I have started the restoration on my Rough 31.000 mile BB with side exhaust . My orig. pipes still have good chrome , the stainless part is very good and the header pipe is solid but rusty . I also have a new set I bought from G.M. in the 80,s Will they sound the same ? 2nd question I am thinking about taking my side pipes to redi strip along with my frame . Has anyone done that ? My concern is the baffling inside the pipe .
    Bill:

    Your original sidepipes and the GM ones you purchased in the 1980's SHOULD sound the same......but your originals may be louder or more raspy due to age and wear.

    I WOULD NOT bring the originals to Redi-Strip, but would clean/refurbish by hand.

    I do not believe that GM sidepipes contained stainless steel. There is a carbon steel header section, aluminized steel chambered section, and chrome tips. That's all I know of.

    Both sets of GM pipes should have a "W" stamp, and GM part numbers on the pipes.

    Larry

    Comment

    • Steven B.
      Extremely Frequent Poster
      • July 1, 1982
      • 3936

      #3
      Re: 65 side exhaust

      Bill, I have used Redi-Strip for wheels, etc. and have been very pleased but I agree with Larry and would do the pipes by hand. Steve

      Comment

      • Dale M.
        Expired
        • December 27, 2007
        • 386

        #4
        Re: 65 side exhaust

        I just bead blasterd my side pipes. This did not eliminate the rough area on the header pipes close to the exhaust manifolds, but did provide a clean surface for me to refinished. Mine is a driver and my finish will not get past NCRS judging, but it pleases the car show type of people.

        Comment

        • John H.
          Beyond Control Poster
          • December 1, 1997
          • 16513

          #5
          Re: 65 side exhaust

          Originally posted by Bill Williamson (3245)
          My concern is the baffling inside the pipe .
          Bill -

          There is no baffling inside the pipes - just a core pipe with perforations in it, and the outer pipe that's crimped to create attenuation chambers.

          Comment

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