1966 427 valve cover decals - NCRS Discussion Boards

1966 427 valve cover decals

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  • Tony H.
    Very Frequent User
    • May 31, 1993
    • 537

    1966 427 valve cover decals

    From the various Corvette catalogs, I gather that the relective Tonawanda #1 Team decal on the right hand valve cover did not come about until Corvette MY 1967. Is this correct? Also, the engine code for the 1966 Corvette with 427 cid/ 390hp version without AIR (K19) and with 4spd shows up as IL in the Spec Guide. Should there be a "IL" decal(s) on the rear of the valve cover as well as this code stamped on the engine block pad? Which valve cover should the "IL" be placed on?
    Tony
  • Joe L.
    Beyond Control Poster
    • February 1, 1988
    • 43221

    #2
    Re: 1966 427 valve cover decals

    Tony----

    The Tonawanda valve cover decals first appeared for the 1967 model year for all Chevrolet models with Tonawanda produced engines. However, I suppose that it is possible that some very late 1966 models might have had them. Once-upon-a-time I was the original owner of a mid year built 1966 Chevelle SS396 L-34 and a 1968 Chevelle SS396 L-78. The 66 did not have the Tonawanda label, but the 68 did. This label was only placed on the right side valve cover.

    A 1966 Corvette with L-36 engine, manual trans, and without A.I.R.(K-19) should have an "IL" suffix code on the engine pad. Originally, there was also an "IL" label affixed to the right rear valve cover surface. This was a paper label that was intended for plant personnel to quickly identify the engine to be pulled from the engine bay at St. Louis for installation in a particular Corvette. The labels were never designed or intended to last longer than this requirement dictated but some did.
    In Appreciation of John Hinckley

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