Can You Identify Two Exhaust Manifolds? - NCRS Discussion Boards

Can You Identify Two Exhaust Manifolds?

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Norm B.
    Very Frequent User
    • February 1, 1988
    • 360

    Can You Identify Two Exhaust Manifolds?

    These are "As found" at the back of a shed. The one with the partial pipe still attached is a 2" but I cannot find anything that even resembles a discernible number on it. The other one is 2 1/2" and there is a stamped 3797901 on it, what appears to be an 801 cast at one end, and an 801 with a 942 under it cast at the other end. Sorry for the picture quality, I did not have a great camera to take the pictures with at the time.
    Attached Files
    Golf is for those who can't play​ hockey.
  • Gene M.
    Extremely Frequent Poster
    • April 1, 1985
    • 4232

    #2
    Re: Can You Identify Two Exhaust Manifolds?

    The 2 1/2" manifold is a good piece used on vette. The other 2" one is junk.

    Comment

    • Bob J.
      Very Frequent User
      • December 1, 1977
      • 714

      #3
      Re: Can You Identify Two Exhaust Manifolds?

      Looks like the 2 1/2 inch manifold has the front ear hacked off.

      Comment

      • Joe L.
        Beyond Control Poster
        • February 1, 1988
        • 43221

        #4
        Re: Can You Identify Two Exhaust Manifolds?

        Originally posted by Norm Bishop (12535)
        These are "As found" at the back of a shed. The one with the partial pipe still attached is a 2" but I cannot find anything that even resembles a discernible number on it. The other one is 2 1/2" and there is a stamped 3797901 on it, what appears to be an 801 cast at one end, and an 801 with a 942 under it cast at the other end. Sorry for the picture quality, I did not have a great camera to take the pictures with at the time.

        Norm------


        The 2" curved outlet manifold is likely a GM #3855163. This was used on most 1965-68 full size passenger cars with small blocks. No curved outlet exhaust manifold was ever used on any Corvette.

        The other manifold looks like a GM #3797942. This manifold was a variation of the 3797901 except with the alternator boss deleted. It was used for many 62-65 Corvettes with HP and SHP engines for the non-alternator side. If the manifold is not drilled for a heat tube, it was intended for L-84 applications. I don't know why this manifold is crudely stamped 3797901. I've not seen that before.
        In Appreciation of John Hinckley

        Comment

        Working...
        Searching...Please wait.
        An unexpected error was returned: 'Your submission could not be processed because you have logged in since the previous page was loaded.

        Please push the back button and reload the previous window.'
        An unexpected error was returned: 'Your submission could not be processed because the token has expired.

        Please push the back button and reload the previous window.'
        An internal error has occurred and the module cannot be displayed.
        There are no results that meet this criteria.
        Search Result for "|||"