Trying to I.D. decal on valve cover-1979 Corvette

[Tony Reed]

Trying to identify decal on valve cover!

This may be an unusual request, but I'll give it a try.

A friend of mine is trying to identify a decal that was used on late 1970's to early 1980's GM cars. The decal is gone from his valve cover; only the glue outline of it remains.

The vehicle he has is a 1979 Chevy Monte Carlo, with a 305 V8. He thinks the decal may have something to do with engine identification; possibly a Canadian assembly plant in St. Catherines, or a Flint, Michigan assembly plant.

He told me that the same decal may have been used on 1979 Chevy Corvettes and some Camaros/Firebirds.

The decal is located on the valve cover (the passenger side), right behind the alternator, at the end of the valve cover.

Does anyone have any idea what this decal may have been, back in the late 1970's early 1980's,(possibly 1978 to 1981)?

The decal appears to be 3 inches by 3 inches, possibly "black & white" with a bar code and numbers, but he's not 100% sure.

Thanks in advance!

[Tom R.]

Re: Trying to I.D. decal on valve cover-1979 Corve

The decal was used to displace the broadcast code for workers during assembly. The code will match the engine suffix code on the engine pad assuming the engine is original. For Corvette in 79, GM used a three-letter alpha code like ZBA. In Corvette they were all 350s but a 305 sounds like a California engine.

The labels are common throughout the years but later they added the bar codes.