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Doing some research on here i know the 1970 egg crate side louvers had chrome horizontal lines as opposed to the '71-'72 which had chrome both horizontal and vertical. I also read it's not just a matter of the later ones being painted differently, but that the edge on the vertical lines is different.
- Does anyone have a close-up picture of the '70 louvers vs. the '71-72...a picture that shows the different edge on the vertical lines.
- Do the '70 vs. '71-71 louvers share the same part numbers, or are they different numbers? Can someone please share what they part numbers are?
This may be a bit long winded but I think this may answer your question. I have what looks like 1 70 on one side and a 71 on the other side.
This is what I believe is the 1970.... 1970 Right 1970
1971 Left side
1971
1970 is the one on the bottom.....
When you compare the two, the 70 looks cheap, with limited detail. If I hadn’t of checked the part number on the 70 I would have thought it was a cheap knock off/reproduction.
3966797 1970 Left Side
3966798 1970 Right Side
3995017 1971 Left Side
3995018 1971 Right Side
I am now in search of a 71 right side
Last edited by Norm07; Jul 18, 2019 at 09:06 PM.
Reason: Spelling
also, one more question...i ask these questions as i believe my '70 has the '71-72 style louvers. The car is a late 1970 (G03 trim tag). Any chance a late '70 could have left the factory with the '71-'72 side louvers? Or perhaps someone replaced them at some point.
also, one more question...i ask these questions as i believe my '70 has the '71-72 style louvers. The car is a late 1970 (G03 trim tag). Any chance a late '70 could have left the factory with the '71-'72 side louvers? Or perhaps someone replaced them at some point.
thanks
I can’t say....hopefully one of the more learned members of the forum can answer that...
Thanks guys. I just confirmed i have '71-'72 side louvers on my '70. I'm going to post something in the parts wanted section, but if anyone has a good quality set please let me know. Still not sure if the '71-'72 style could possibly have been used on a late car like mine, but suspect they may have been swapped at some point.
Very possible to have ‘71 side grills on a very late ‘70
i know late ‘70’s got ‘71 parking light housings (some got one of each)
I may have a set of the ‘70’s if u decide u need them
george
210-748-4693 for texting
If you take a picture of the casting number and other cast information near the casting number, we can give you an extremely well-educated guess as to whether they are original to your car or not.
Pics like Norm07 posted will work.
If you take a picture of the casting number and other cast information near the casting number, we can give you an extremely well-educated guess as to whether they are original to your car or not.
Pics like Norm07 posted will work.
Thank you. I confirmed the louvers on my car have part numbers 3995017 and 3995018 so they are the later ones. It sounds like they may be original to the car since my car is a late 1970, but i think i'm still going to try to pick up a pair of nice 1970 ones. Same thing with my front grill actually.
You should keep the parts on your car that came with it from the factory. The date codes on the inside surface of those louvers will verify that they are original.
The only reason that a late '70 car would have had '71-72 design louvers on it would be that the production run of '70 louvers had ceased and ONLY '71-72 parts would have been available for the factory to use. And, I suspect that was the case. So, if you switch over to '71-72 louvers so it will LOOK correct, the irony is that it will definitely NOT be correct, as no '70 car after a specific S/N would have been built with them.
Check your part's date codes. If they were made before your car was built, they are original to the car and should be retained.
FWIW there is a 71 Roadster that is VERY early production and HAS ORIGINAL PAINT which has 70 Grilles and 70 side vents... ORIGINAL PAINT and the screw heads ARE PAINTED indicating they were painted in place JUST LIKE 1970 MODELS. given this it would be difficult to believe that a 70 had the later side vents or 71 style grilles.
NORM one of yours was cast in May of 1970 and the other was cast in October of 1970... when was your car built?
Last edited by firstgenaddict; Jul 20, 2019 at 12:43 PM.
You should keep the parts on your car that came with it from the factory. The date codes on the inside surface of those louvers will verify that they are original.
The only reason that a late '70 car would have had '71-72 design louvers on it would be that the production run of '70 louvers had ceased and ONLY '71-72 parts would have been available for the factory to use. And, I suspect that was the case. So, if you switch over to '71-72 louvers so it will LOOK correct, the irony is that it will definitely NOT be correct, as no '70 car after a specific S/N would have been built with them.
Check your part's date codes. If they were made before your car was built, they are original to the car and should be retained.
I didn't realize the louvers had date codes on them...i only saw a part number. Here are some pictures...
Last edited by pwsusi; Jul 21, 2019 at 04:27 PM.
Reason: uploaded photos
Regarding the question "Any chance a late '70 could have left the factory with the '71-'72 side louvers?", the NCRS would say "no". The latest edition of their Technical Information Manual and Judging Guide states that early '71's had the '70 style grilles (meaning chrome edges on the horizontal surfaces only and no raised chrome bars on the vertical surfaces - with body color paint on the "cross-recessed head screws").
On the 1971 cars, "Somewhere between serial s/n 1447 and 4285" they got the updated style.
So, some 71's had the older style but no 70's left the factory with the newer style.
1970 vs 71-72 Side Louvers
