vegavairbob’s Profile Photo



CorvairJim’s Profile Photo


Norristown, Pennsylvania
United States


1976 Chevrolet Cosworth Vega

“Twin Cam #1”

2006 Chevrolet Cobalt SS


Photo of: 1976 Chevrolet Cosworth Vega

No longer owned

Photo of: 2006 Chevrolet Cobalt

Head to Head


About “Twin Cam #1”

Mahogany Metallic - Buckskin interior

1 of 1,447 Cosworth Vegas of 160,523 1976 Vega production.

122 CID (2.0 L) DOHC Aluminum Inline-4 - 16 Valves - Forged Steel Crankshaft, Forged Aluminum Pistons, Stainless Steel Headers, Electronic Fuel Injection.
4-Speed Manual Transmission

I owned this Cosworth Vega from 1982 until the mid 90's. That's me behind the wheel in 1988 for this car show photo.
The car had 25k miles. Car was refinished in the mid-80s with the original color, acrylic lacquer paint and clear-coated, and new stock stripping. I bought an nos set of stock alloy wheels and nos Goodyear radials. It did well in car shows gathering many 1st place awards. It was entered in the Super Chevy Sunday show in Pa. in 1987 and 1988. It won best in class (open class) both years. The car was featured in Super Chevy magazine in the June 1988 issue. I wrote the article, captions and supplied the photo slides.
I finally replaced this missed Vega - an original 1976 Cosworth Vega, same color with the optional 5-speed transmission - only 1,592 miles (see garage).

About “"Bud"”

In late 2005, I decided that I didn't want to subject my '66 Corvair daily driver to another winter of Pennsylvania road salt. Its floors had virtually no rust, just a little surface rust, and I wanted to keep it that way! GM was having one of its rebate promos, so I checked into how much a Cobalt would cost. The local dealers (I have three within 10 minutes!) all came in too high, but there was one about ten miles away that quoted me a price that was just too good to pass up. They pitched me the SS, with the equipment I wanted, cheaper than one of the other dealers quoted me on am LT!
I call it "Bud" because I'm a big NASCAR fan, especially the Earnhardts. Dale Earnhardt was, is, and always will be THE MAN! Dale, Jr. is currently my driver, because, after all, he is his father's son. Now, at the time, JR. drove a red Chevy SS with "Bud" painted across the hood. What else am I going to call MY red Chevy SS? (I have no plans to repaint it in his current colors!)
And for all you other NASCAR fans out there, I'm open to guesses as to what Bud's license plate "BOOG8Y 3" means.


Specs for “Twin Cam #1”

Dimensions - Capacities
Length: 175.4 in
Width: 65.4 in
Height: 50 in
Wheelbase: 97 in
Front track: 54.8 in
Rear track: 53.6 in
Ground clearance 4.8 in
Oil capacity w/filter 4 US Qt
Fuel capacity: 16.1 US Gal
Curb Weight: 2480 lbs

Aluminum Cylinder Block / Aluminum Cylinder Head
Engine manufacturer: Chevrolet
Engine type: spark-ignition 4-stroke
Cylinders alignment: Line 4
Displacement: 1994 cm3 / 121.7 cui
Main bearings 5
Valves per cylinder: 4
Additional features: Bendix EFI; DOHC
Bore: 88.93 mm / 3.501 in
Stroke: 2.07 mm / 3.625 in
Compression ratio: 8.5 : 1
Power net: 110 hp / 5600
Torque: 107 ft-lb / 4800

Traction: RWD (rear-wheel drive)
Gearbox: Saginaw
Transmission type: manual
Number of gears: 4
Gear ratios (overall):
I 3.504 (13.07)
II 2.48 (9.25)
III 1.655 (6.17)
IV 1 (3.73)
Final drive ratio std: 3.73
Standard tires: BR70 x 13

Top speed: 117 mph
0-60 mph (s): 10.3
0- 1/4mile (s): 17.8
speed at 1/4mile: 76 mph
Turning circle btw. curbs: 33 ft
Drag coefficient estimated by a-c: 0.42
Fuel consumption: extra-urban / city / highway / average combined:
27-32 / 17-21 / 27-32 / 23.6

1976 Chevrolet Cosworth Vega-
One of the 10 Best Collectable Cars in Car and Driver's fourth annual Ten Best issue,

Specs for “"Bud"”

171 H.P. Dual Overhead Cam 4-cylinder.
5-speed Transaxle.
0-60: About 7.5 seconds (official Timex wristwatch timing!)
Top Speed: I've had it up to an indicated 130, but I ran out of road. It still had some left in it.


Factory Options for “Twin Cam #1”

1HV77 / Z09 Cosworth Vega Hatchback - L4 6,065.60

A01 - Glass, Soft Ray Tinted: All Windows 44.00
A20 - Windows, Swing-Out: Rear Side Windows 35.00
B37 - Mats, Color Keyed Floor, 2 Front and 2 Rear 14.00
B93 - Door Edge Guards 7.00
C49 - Electro-Clear Rear Window Defogger 56.00
G80 - Axle, Positraction Rear 48.00
LY3 - 122-EFI Twin Cam L4 .00
M20 - Four-Speed Transmission .00
QLA - BR70-13/B S/B Radial B/Wall .00
U69 - AM/FM Radio, Pushbutton 212.00
ZJ9 - Lighting, Auxiliary 15.00
Z09 - Cosworth Vega Package .00
Destination Charge 144.00
Total Amount 6,650.60

#2673 of 3508 '75/'76 Cosworth Vegas built March '75 - July '76

Factory Options for “"Bud"”

SS Equipment package.(includes 171 HP. Ecotec 4-cylinder Engine, 5-speed manual Transaxle, Sport Front and Rear Facia,
Power Windows and Door Locks, Body Color Rear-View Mirrors
Driving Lights, Remote Trunk Release, Carpeted Floor Mats, Multi-Function Trip Computer, 17" Polished Alloy Wheels, 4- Wheel Disc Brakes)
Victory Red paint.
Charcoal Leather interior.
Heated seats.
AM/FM/XM Satellite/CD Stereo
Power Sunroof


Mods for “Twin Cam #1”


Mods for “"Bud"”

None (Yet...) except a set of Falken tires - it used to corner well, now it handles like a go-kart!
I'm planning Silver Chevelle SS-style stripes and full window tint next summer.


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Points for Twin Cam #1 Total Votes Points for "Bud"
40 11 15


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