1964 Engine Codes & Production

Engine C.I.D

Carb. Type

Trans. Type

Std. Code

Compression Ratio

Horsepower

389

3X2

3-SPD

76X

10.75:1

348

389

3X2

4-SPD

76W

10.75:1

348

389

3X2

4-SPD1

76XW

10.75:1

348

389

3X2

4-SPD2

769

10.75:1

348

389

3X2

AUTO.

77J

10.75:1

348

389

4BBL

3-SPD

78X

10.75:1

325

389

4BBL

4-SPD1

78W

10.75:1

325

389

4BBL

4-SPD1

78XW3

10.75:1

325

389

4BBL

4-SPD2

789

10.75:1

325

389

4BBL

AUTO.

79J

10.75:1

325

Special Notes:
1 4spd.M-20 Wide Ratio
2 4spd.M-21 Close Ratio
3 To use left over 3-spd. blocks the factory stamped a letter (W) after the (X) to mark them as 4-spd. blocks.

1964 Production Totals

Convertible

6,644

Coupe

7,384

Hardtop

18,422

Total Production

32,450

389 3x2 Engine

8,245

389 4-BBL Engine

24,205