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1973 Engine Codes & Production

Engine C.I.D.

Carb. Type

Trans. Code

Std. Code

Calif. Code

Compression Ratio

Horsepower

400

4-BBL

3SPD.MAN

WS

--

8.0:1

230

400

4-BBL

4SPD.MAN

WK1

--

8.0:1

230

400

4-BBL

4SPD.MAN

WP

--

8.0:1

230

400

4-BBL

AUTO.

YS

--

8.0:1

230

400

4-BBL

AUTO.

--

ZS

8.0:1

230

400

4-BBL

AUTO.

YY1

--

8.0:1

230

400

4-BBL

AUTO.

Y31

--

8.0:1

230

400

4-BBL

AUTO.

YT2

--

8.0:1

230

455

4-BBL

AUTO.

YC

--

8.0:1

250

455

4-BBL

AUTO.

--

ZC

8.0:1

250

455

4-BBL

AUTO.

YA1

--

8.0:1

250

455

4-BBL

AUTO.

--

ZA

8.0:1

250

455

4-BBL

AUTO.

YK2

--

8.0:1

250

455

4-BBL

AUTO.

YD3

--

8.0:1

250


1973 Engine Codes (Late Production) & Production

Engine C.I.D.

Carb. Type

Trans. Code

Std. Code

Calif. Code

Compression Ratio

Horsepower

400

4-BBL

3SPD.MAN

YF

--

8.0:1

230

400

4-BBL

4SPD.MAN

Y6

--

8.0:1

230

400

4-BBL

4SPD.MAN

YG1

--

8.0:1

230

400

4-BBL

AUTO.

XN

--

8.0:1

230

400

4-BBL

AUTO.

XX1

--

8.0:1

230

400

4-BBL

AUTO.

XK2

--

8.0:1

230

455

4-BBL

AUTO.

XE

--

8.0:1

250

455

4-BBL

AUTO.

XL1

--

8.0:1

250

455

4-BBL

AUTO.

X72

--

8.0:1

250

455

4-BBL

AUTO.

XM3

--

8.0:1

250
Special Notes:

1Cars Equipped With Unitized Ignition
2High Country Use
3High Country Use Equipped With Unitized Ignition

1973 Production Totals

Coupe

455 4BBL. (Manual)

0

Coupe

455 4BBL. (Auto)

25

Coupe

400 4BBL. (Manual)

187

Coupe

400 4BBL. (Auto)

282

Total Coupe

494

Sport Coupe

455 4BBL. (Manual)

0

Sport Coupe

455 4BBL. (Auto)

519

Sport Coupe

400 4BBL. (Manual)

926

Sport Coupe

400 4BBL. (Auto)

2,867

Total Sport Coupe

4,312

Total Production

4,806