LOL You're photos are on the net. Google to the rescue. Yes, production changes happened without announcements. They still do.
Have you owned the car since new?
Is it 100% original, or could someone have put the 66 covers on your 65 at some time...
The original owner of my 67 Barracuda had the 68 marker lights installed because he was a "good samaritan"... :angel12:
Here's a few photos from Ulf's build and one from a old magazine article. I don't see the big wire guard on these. I haven't found the build date on Ulf's car yet.
Nice !!! Ulf and I have exchanged email... but this is the first time I've seen these pics...
Thanks... Just think the plug wire grommets are too "WHITE"... they were yellowish even when new... (since we ARE talking Valve Covers)
And one more thought... Maybe multiple Vendors on these valve covers depending where the cars were assembled? Or, they ran with a batch till they needed more, with the new batch might having changes/updates? Not always is every thing new for just model year change?
And if you want to add some more questions try to figure out the differences between the all polished aluminum fins and those with the polished tops and unpolished background. And then there are the wire separator differences.......
Yep, the repop grommets are too white. I do believe the originals were more tan colored .I have seen repops available in a aged color but can't remember where.
Forgot about all that! This could never end. lol
Here's a theory.
They added the bump for the "new" style pcv coming in 67.
Then pulled it ahead in 66.
Now keep in mind that this is not a drastic change and can be done on the fly without affecting anything. so they can pull this ahead without obsolescence which means that they are allowed to build both versions at the same time until they run out of the old style.
Also keep in mind that they will have some engines to recycle that may have been torn down and the old valve covers recycled after the new ones have begun. There will be a period of overlap and where they will go back and forth. This change is not worth spending the manpower to make a clean break point and then incur scrap cost for the old ones. Rerun the old ones until they are all gone so they don't have to be scrapped.
The cool thing about the 65/66 covers is that they use the same pcv and cap and the same breather and plug wire holders as the 426 Hemi. The bad thing about those covers is that they use those Hemi Parts and they are expensive. lol