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Forum: Supercar/Musclecar Discussion 12-26-2025, 10:45 PM
Replies: 4
Views: 801
Posted By jeffschevelle
Z16's used the 3844100 pulley. They were cad...

Z16's used the 3844100 pulley. They were cad plated with no stamped numbers or code.

66 and 67 Chevelle L78's also used the 3844100 pulley. They were cad plated, and some had the stamped number...
Forum: Technical & Restoration 12-23-2025, 01:30 AM
Replies: 12
Views: 1,942
Posted By jeffschevelle
If you can't get to the flap with the date on it...

If you can't get to the flap with the date on it (or it is gone), some manufacturing date indicators to keep in mind are:

(A) The presence of the Registered Trademark symbol (R in a circle)...
Forum: Supercar/Musclecar Discussion 12-03-2025, 07:37 PM
Replies: 62
Views: 40,548
Posted By jeffschevelle
The COPO 9719 package included the L78 engine...

The COPO 9719 package included the L78 engine with suffix code IY (which per the Tonawanda work order for COPO 9719 specified to build a full size car L78 except with Z16 exhaust manifolds and Z16...
Forum: Supercar/Musclecar Discussion 12-02-2025, 10:26 PM
Replies: 11
Views: 1,969
Posted By jeffschevelle
I said Wangers, but it might have been Jim...

I said Wangers, but it might have been Jim Mattison ... GM historical royalty, either way!
Forum: Supercar/Musclecar Discussion 12-02-2025, 09:41 PM
Replies: 11
Views: 1,969
Posted By jeffschevelle
The black 65 300 post COPO 396/425 car is...

The black 65 300 post COPO 396/425 car is absolutely real. There is no question about it. In my opinion, for whatever that is worth.

It is documented by Central Office typed window sticker,...
Forum: Supercar/Musclecar Discussion 11-29-2025, 07:05 AM
Replies: 2,350
Views: 1,521,265
Posted By jeffschevelle
I called and emailed them (the owner through his...

I called and emailed them (the owner through his business, as well as his "car handler") and left several messages in 2015 to try to get it to the 2015 Z16 reunion, but they never replied. I was not...
Forum: Supercar/Musclecar Discussion 11-29-2025, 01:05 AM
Replies: 2,350
Views: 1,521,265
Posted By jeffschevelle
Thanks for posting the pic of one of my two Z16s...

Thanks for posting the pic of one of my two Z16s I had at the show!! I sure do wish it is was the #1 prototype car, but it is not. It is one of the 200 "production" cars built at the KC plant. ...
Forum: Technical & Restoration 10-26-2025, 08:18 PM
Replies: 10
Views: 1,296
Posted By jeffschevelle
Except for some of the smog cars, all 65-67E are...

Except for some of the smog cars, all 65-67E are straight, unthreaded press-in pipes with no lip. But they are an odd O.D. size not sold by standard pipe vendors.

As to Paragon, if you Google...
Forum: Supercar/Musclecar Discussion 10-14-2025, 10:07 PM
Replies: 145
Views: 90,152
Posted By jeffschevelle
With the two crinkle bends already there from...

With the two crinkle bends already there from Gardner, can your guy not just increase the amount of those bends with his smooth dies? I would think the crinkles would survive that process if it is...
Forum: Technical & Restoration 10-13-2025, 12:21 AM
Replies: 42
Views: 12,635
Posted By jeffschevelle
I don't disagree at all with that in general. ...

I don't disagree at all with that in general. But a couple observations:

Regarding the change from the large outlined AC A212CW embossing, to the small AC SPARK PLUG A212CW embossing, my first...
Forum: Technical & Restoration 10-13-2025, 12:01 AM
Replies: 11
Views: 1,268
Posted By jeffschevelle
From my observations of original cars and...

From my observations of original cars and research in the original 60's parts books --

- Any car with power brakes which the booster orientation resulted in the Master Cylinder NOT being level /...
Forum: Technical & Restoration 10-11-2025, 12:50 AM
Replies: 42
Views: 12,635
Posted By jeffschevelle
That would have been for a brief period during...

That would have been for a brief period during the 68 model year, after the embossing changed, but before the silk screen was added.

Large embossed font lasted until AT LEAST 8/1967.

The...
Forum: Technical & Restoration 10-10-2025, 08:01 PM
Replies: 42
Views: 12,635
Posted By jeffschevelle
Yes. That's why, to distinguish between the two...

Yes. That's why, to distinguish between the two versions, I call Steve's type filter "Diagonal Mesh" (for the diagonal straight wires) and call Jason's type "Diamond Mesh" (for diamond shaped holes,...
Forum: Technical & Restoration 10-10-2025, 08:44 AM
Replies: 42
Views: 12,635
Posted By jeffschevelle
Bill is correct - He beat me to it while I was...

Bill is correct - He beat me to it while I was typing the spiel below!

The mesh shown in Steve's and Bill's pics (which I call "Diagonal Mesh") was used on the 212's from their inception (1965 I...
Forum: Technical & Restoration 10-03-2025, 06:21 AM
Replies: 11
Views: 2,157
Posted By jeffschevelle
Also note that in 67 and 68 Chevelle AIM's M20...

Also note that in 67 and 68 Chevelle AIM's M20 section, they show the backup light switch wiring clip being mounted to the other side of the bellhousing and that bolt is labeled:

"BOLT
PART OF...
Forum: Supercar/Musclecar Discussion 10-03-2025, 01:05 AM
Replies: 73
Views: 18,144
Posted By jeffschevelle
The 2Q explanation above is correct, except that...

The 2Q explanation above is correct, except that the 1965 Muncie M20 switched to the passenger side speedo cable around the beginning of the 1965 calendar year. That should not have created a...
Forum: Supercar/Musclecar Discussion 10-02-2025, 10:53 PM
Replies: 73
Views: 18,144
Posted By jeffschevelle
Paul never said that you could not get an M20 (or...

Paul never said that you could not get an M20 (or an M22, or an M13) with the L72 engine. He said (correctly) that you could not get an M21 (in a full size car) behind any engine except the L72.
...
Forum: Supercar/Musclecar Discussion 09-16-2025, 11:45 PM
Replies: 35
Views: 5,418
Posted By jeffschevelle
Happy for the good news, but don't count your...

Happy for the good news, but don't count your chicks 'til about 5 days after the check clears! "Cashiers checks" are easily faked nowadays.

Good luck!
Forum: Ebay & other seen ads section 09-15-2025, 05:41 PM
Replies: 19
Views: 5,441
Posted By jeffschevelle
Wow. With the amount of effort and dedication...

Wow. With the amount of effort and dedication (and $$) it takes to amass such a collection (not to mention those fantastic buildings in the pictures), I was curious why it was all being sold at one...
Forum: Supercar/Musclecar Discussion 09-12-2025, 10:15 PM
Replies: 30
Views: 6,341
Posted By jeffschevelle
Few if any of the internet engine suffix lists...

Few if any of the internet engine suffix lists include 6-cylinder engines, but some of the old parts books do. I just pulled out the 10/1/1965 "Illustration and Special Information Catalog" and it...
Forum: Technical & Restoration 08-07-2025, 09:11 PM
Replies: 8
Views: 6,888
Posted By jeffschevelle
My knowledge is limited to the 67 and earlier...

My knowledge is limited to the 67 and earlier vertical flow radiators, but maybe how the tags were handled on those can lend a clue.

All 65-67 Harrison radiators (and probably earlier ones) have...
Forum: Supercar/Musclecar Discussion 08-03-2025, 06:27 AM
Replies: 26
Views: 22,777
Posted By jeffschevelle
If the repro 68 Impala emblem is made anywhere...

If the repro 68 Impala emblem is made anywhere near accurate, then that is not the same emblem as in the pics above. The repro is contoured around the edges on the back to fit the grill, and has...
Forum: Supercar/Musclecar Discussion 08-02-2025, 12:08 AM
Replies: 26
Views: 22,777
Posted By jeffschevelle
Rick Smith who is restoring the Motion car saw...

Rick Smith who is restoring the Motion car saw this and sent me pics of the emblem. It is exactly like the one posted above, except WITHOUT any part numbers on the back. Maybe it was an earlier...
Forum: Supercar/Musclecar Discussion 08-01-2025, 06:23 AM
Replies: 26
Views: 22,777
Posted By jeffschevelle
Short answer is there are no known provable (or...

Short answer is there are no known provable (or even barely credible) examples of any 66 or 67 Chevelle being factory built with a 427, and no known records of any such car being built (or of any...
Forum: Ebay & other seen ads section 06-17-2025, 11:43 PM
Replies: 8
Views: 5,771
Posted By jeffschevelle
With a broadcast date of April 25 on the...

With a broadcast date of April 25 on the broadcast sheet, a Muncie would be correct. They started producing Muncie's in February of 1963. My 63 SS has its original Muncie (with VIN stamp) dated the...
Showing results 1 to 25 of 229

 
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