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-   67-81 Firebird & TA Parts FOR SALE (https://forums.maxperformanceinc.com/forums/forumdisplay.php?f=451)
-   -   Shaker / Scoop for 1977, 1978, 1979 Pontiac 400 (https://forums.maxperformanceinc.com/forums/showthread.php?t=849309)

Shift'n Gears 03-25-2021 12:19 AM

Shaker / Scoop for 1977, 1978, 1979 Pontiac 400
 
3 Attachment(s)
Original Shaker scoop for a 77-79 Pontiac 400 engine. Shaker is in good condition with no cracks. Original drain nipple is in good condition. It does have a couple layers of paint on it and there is the typical glue in areas where the foam seal goes. More pics upon request. Asking $225 + shipping OBO

78w72 03-25-2021 03:05 PM

FYI: 77 shakers are different than 78-79, they have a much lower profile height.

that looks to be a 78-79.

Shift'n Gears 03-25-2021 06:51 PM

78W72 - You are correct. In 1977 when the Shaker style changed from the 70-76 style, it had a much lower profile and had a ridge going up the center line o f the shaker.
However, over the past 25 years I have talked to several owners of low mile original 77 TA's with late build dates (May - June) that had the Higher profile shaker and they told me the shaker was original. In my search for a S/E I went to look at 2 unrestored 77's that also had the taller shaker. Could they have been changed? Sure. And if it were one case, I would have just thought that it was replaced.
Seeing 7-8 77's with the taller shaker makes me think that it is possible there was a changeover prior to 78, but I have found no documentation for it and only the word of the owners. If anyone has more information about the use of the shakers and the changeover point I would really like to know. But the low profile shaker with the ridge was definitely only used in 77.
As far as fitment goes, this shaker will fit 77-79 W72's, though not correct for most 77's as you point out.

78w72 03-25-2021 07:01 PM

yeah i figured you knew that, just wanted to mention it for anyone with a 77 that didnt know & needed the lower profile.

good luck with the sale, looks like a nice one.

Shift'n Gears 03-30-2021 06:08 PM

Sold !

pippintook 04-03-2021 01:51 PM

Hey Shift - pretty sure you are right about the taller shaker being used on late build 77 TAs. I always thought all 77 TAs had the low profile shaker. But, I think pontiac switched to the taller shaker starting late in 77 model year (possibly around May 1 1977?). I cant recall where I read it :( - dont think it was Rockys TA book - but did read somewhere.

Shift'n Gears 04-09-2021 02:33 PM

Quote:

Originally Posted by pippintook (Post 6239422)
Hey Shift - pretty sure you are right about the taller shaker being used on late build 77 TAs. I always thought all 77 TAs had the low profile shaker. But, I think pontiac switched to the taller shaker starting late in 77 model year (possibly around May 1 1977?). I cant recall where I read it :( - dont think it was Rockys TA book - but did read somewhere.

Thanks for confirming that the change was late 77. If you ever find where you read it, I would like to document it for my notes.

Thanks!

Elarson 04-09-2021 10:28 PM

I had a '77 (that I bought in '78 from original owner) with the low profile scoop. It's serial was 197624....so a switch to taller had to be after that.

FWIW,
Eric

burd 04-10-2021 09:50 AM

I think there’s a 77 bulletin on up this, look in a 77 binder.

77 Canamman 04-11-2021 07:23 AM

From an old post:

Quote:

Originally Posted by Y81all (Post 3255650)
The early low-profile shaker with the pronounced center ridge was used until the May/June 77 timeframe when it was switched to the more common taller shaker we're all familiar with. Specifically the switch happened on 5/19/77 for the 400 powered cars and on 6/02/77 for the 403 powered cars (presumably because they each used a unique shaker). This info courtesy of John Witzke.



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