Z28 Valve Cover P.N.

Discussion in 'Camaro Questions' started by Double J, Jun 8, 2008.

  1. Double J

    Double J Veteran Member

    Jan 23, 2008
    All, I just purchased a set of Corvette/Z28 Aluminum finned valve covers at a swap meet yesterday paid $80.00 bucks. I think I did alright, there very nice. Anyway the numbers inside the covers #464669 and #464670 are not numbers I've seen. Does anyone know about these covers. what did they come off of?.............Thanks Double J
  2. Gary S

    Gary S Administrator Lifetime Gold Member

    Apr 14, 1999
    Bismarck, North Dakota
    464669LH and 464670RH are the raw casting numbers for the finned aluminum valve covers used on 69-74 Z28 engines, 70 Yenko Deuce engines, and 70s Corvette LT1 and L82 engines.
    You will also probably find the finished assembly numbers on them if you look carefully. The assy numbers are 464667LH and 464668RH.
    None of these numbers are the "part" number they were sold under. From these castings, Chevy made the polished finish sets, and the black powder coated ones used on later Corvettes. Both kinds were also sold over the GM parts counter, so it is difficult to tell exactly what car your set might have come from.
    At least some of these covers were sold under the part numbers 00474207 and 00474208, but I don't know what color and era these numbers were from.
  3. Double J

    Double J Veteran Member

    Jan 23, 2008
    You know your stuff Gary.........Thanks.
  4. flowjoe

    flowjoe Moderator Staff Member Lifetime Gold Member

    Feb 7, 2006
    I would add that there should be no drippers in 1969 era finned valve covers.
  5. 79ZED

    79ZED Veteran Member

    Jan 31, 2000
    Nanaimo, B.C., Canada
    I'm not sure if GM still makes them, but the original LT-1 finned aluminum valve cover from 69-74 is 474207 ( left) and 474208 ( right ). GM also offered the same style painted in black with brushed fins for the 78-82 L-82 engines on Corvettes, these were available under part number 14025553 (L) and 14025554 (R).


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