[JoeC]

I have been trying to find a 1969 picture of a Motion car with finned alu valve covers but have not. This is odd because the magazine cars usually got the dress up items. This doesn't mean there were none sold in 69 but I would think there would be a 69 pic of them. The original pics of the 70 Motion car posted on here showed that car with stock chrome steel covers. So I have not pinned down the intro date of the finned Motion valve cover. I asked Joel and he was not sure.
I have two sets of old finned alu Motion covers both chrome plated alu. All old looking original Motion valve covers with emblems I have seen were chrome plated alu.
The longer trimmed down emblem was still used in 1973 because they are shown on the King Kong 454 Vega in the original article. I have a few Motion catalogs and the 1976 catolog valve cover ad says "Motion Phase III valve covers finned chrome." They did not offer polished alu in any ads I can find until later 70s then both chrome and polished are listed.
Breathers shown in catalog look like chrome Mr. Gasket push in.
This info is what I have found and not cast in stone just my observations.