The Supercar Registry - 1963 Z11 Impala Race Bred

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The Supercar Registry (https://www.yenko.net/forum/index.php)

- Chevrolet (https://www.yenko.net/forum/forumdisplay.php?f=124)

- - 1963 Z11 Impala Race Bred (https://www.yenko.net/forum/showthread.php?t=173050)

Steve Shauger

09-12-2022 04:27 PM

1963 Z11 Impala Race Bred

6 Attachment(s)

These cars although RPO's, were purpose built for strictly racing. Non essential items were not available to reduce weight such as; radio, heater, sound-deadner.

This package was quite potent especially when Frank Sanders was behind the wheel, winning 19 of 20 races he entered in 1963.

Today it is owned by Roger Sortino a fantastic caretaker!

Here are a few HD components:

Aluminum components:

hood
fenders
bumpers

Engine-427:

stroker crankshaft
compression (13.5:1)
heads with larger ports
dual four-barrel carbs
427 cubic inches-430 horsepower.

https://www.chevyhardcore.com/featur...e-of-its-kind/

mockingbird812

09-12-2022 11:53 PM

thanks Steve - what a thumper. What trans did Chevy use in ‘63 to handle the torque of this 427?

Lee Stewart

09-13-2022 01:00 AM

Quote:

Originally Posted by mockingbird812 (Post 1599948)

thanks Steve - what a thumper. What trans did Chevy use in ‘63 to handle the torque of this 427?

4 Speed Manual Close Ratio

Lee Stewart

09-13-2022 01:03 AM

https://i.postimg.cc/t4s3WvsP/image1.jpg

Quote:

Perhaps the 427’s greatest improvement over the 409 was in the cylinder heads and intake manifold. Like the high-performance versions of the 409, the 427 used 2.19-inch intake and 1.72-inch exhaust valves, but the 427’s head castings were taller. This allowed the ports to be located higher for a straighter path from the intake into the combustion chamber. The dual-carburetor aluminum intake manifold was unique, too, and made in two pieces: the lower part served as the lifter valley cover and contained the water jackets, while the upper portion housed the raised intake runners. A pair of Carter AFBs topped the intake and drew air through a special cowl-induction inlet that fed the air cleaner.

Chevrolet reportedly made 57 Z-11s before GM pulled the plug on all of its racing programs. The 427 represents the pinnacle of W engine performance development and is legendary among enthusiasts of the breed today.

Lee Stewart

09-13-2022 01:14 AM

430 Horsepower?

https://i.postimg.cc/ZnY3RwkW/Oblong...og-max-1mb.gif

Steve Shauger

09-13-2022 01:24 AM

I Sure wish Verne was with us RIP. He'd give us a history lesson on these W engines that we wouldn't forget!

olredalert

09-13-2022 03:24 AM

----When real production cars were in their heyday. A period I will never forget as I lived thru it, and loved every minute of it!!!.....Bill S

Xplantdad

09-13-2022 05:01 PM

Quote:

Originally Posted by Steve Shauger (Post 1599955)

I Sure wish Verne was with us RIP. He'd give us a history lesson on these W engines that we wouldn't forget!

What a true statement!

tom406

09-13-2022 06:38 PM

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Per Colvin’s 60-64 “By the Numbers” chapter on the Z-11, they were all built with close ratio Borg Warner T10 with Inland shifters. It makes sense, as the first Muncie 4 speeds didn’t initially ship to production until February 6th, 1963. (Shipped to Baltimore plant to be put into full size Chevrolets, NOT Corvettes-The earliest Corvettes to get Muncies are built in the May/June 1963 timeframe)

I don’t think Mr. Sortino owns the Sanders car any longer. I appraised it around 2010 here in WA and then the next time I saw it was in the Mecum display at MCACN a few years later. I do have to say, its probably my favorite Z11 after seeing it in all of its unique aqua/aqua original glory.

67since67

09-14-2022 12:10 AM

Hey! There's my 'ol red hot-rod in the background...MCACN 2017

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