1964 GTO Engine Codes & Production Totals
|
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 GTO 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 |
1965 GTO Engine Codes & Production Totals
|
Engine C.I.D |
Carb. Type |
Trans. Type |
Std. Code |
Compression Ratio |
Horsepower |
|
389 |
3X2 |
MAN. |
WS |
10.75:1 |
360 |
|
389 |
3X2 |
AUTO. |
YR |
10.75:1 |
360 |
|
389 |
4BBL |
MAN. |
WT |
10.75:1 |
335 |
|
389 |
4BBL |
AUTO. |
YS |
10.75:1 |
335 |
Special Notes:
Although never shown in production
figures, there were over the counter, and possibly dealer installed ram air
packages sold for the 1965 GTO.
A 421 cubic inch motor could be ordered and dealer installed in a 65 GTO, but there were no factory built 421 GTO`s. A fully documented 421 GTO is very desirable and extremely rare. If not documented this application is incorrect.
1965 GTO Production Totals
|
Convertible |
11,311 |
|
Coupe |
8,319 |
|
Hardtop |
55,722 |
|
|
|
|
Total Production |
75,352 |
|
|
|
|
389 3X2 |
20,547 |
|
389 4BBL |
54,805 |
|
|
|
|
Manual |
56,378 |
|
Automatic |
18,974 |
1966 GTO Engine Codes & Production Totals
|
Engine C.I.D. |
Carb. Type |
Trans. Type |
Std. Code |
Calif. Code |
Compression Ratio |
Horsepower |
|
389 |
4BBL |
MAN |
WT |
WW |
10.75:1 |
335 |
|
389 |
4BBL |
AUTO |
YS |
XE |
10.75:1 |
335 |
|
389 |
3X2 |
MAN |
WS |
WV |
10.75:1 |
360 |
|
389 |
3X2 |
AUTO |
YR |
YR |
10.75:1 |
360 |
|
389 |
3X2 |
MAN(RA) 1 |
XS |
XS |
10.75:1 |
360 |
Special Notes:
1 Although
never shown in production figures there were approximately 25 to 35 factory built
1966 ram air GTO`s (XS package). It is estimated that 300 dealer ram air
packages were sold for 66 GTO`s.
A 421 cubic inch motor could be ordered and dealer installed in a 66 GTO, but there were no factory built 421 GTO`s. A fully documented 421 GTO is very desirable and extremely rare. If not documented this application is incorrect.
1966 GTO Production Totals
|
Convertible |
12,798 |
|
Coupe |
10,363 |
|
Hardtop |
73,785 |
|
|
|
|
Total Production |
96,946 |
|
|
|
|
389 3X2 |
19,045 |
|
389 4BBL |
77,901 |
|
|
|
|
Manual |
61,279 |
|
Automatic |
35,667 |
1967 GTO Engine Codes & Production Totals
|
Engine C.I.D. |
Carb. Type |
Trans. Code |
Std. Code |
Calif. Code |
Compression Ratio |
Horsepower |
|
400 |
4-BBL |
3-SPD. MAN |
WT |
WW |
10.75:1 |
335 |
|
400 H.O. |
4-BBL |
3-SPD.MAN |
WS |
WV |
10.75:1 |
360 |
|
400 |
4-BBL |
4-SPD. MAN |
WT |
WV |
10.75:1 |
335 |
|
400 H.O. |
4-BBL |
4-SPD. MAN |
WS |
WV |
10.75:1 |
360 |
|
400 R.A. |
4-BBL |
4-SPD. MAN |
XS |
YR |
10.75:1 |
360 |
|
400 |
4-BBL |
AUTO. |
YS |
YS |
10.75:1 |
335 |
|
400 |
2-BBL |
AUTO. |
XM |
XL |
8.60:1 |
255 |
|
400 H.O. |
4-BBL |
AUTO. |
YZ |
YZ |
10.75:1 |
360 |
|
400 R.A. |
4-BBL |
AUTO. |
XP |
XP |
10.75:1 |
360 |
Special Note:
A 428 cubic inch motor could be ordered
and dealer installed in a 67 GTO, but there were no factory built 428 GTO`s. A
fully documented 428 GTO is very desirable and extremely rare. If not
documented this application is incorrect.
1967 GTO Production Totals
|
Convertible |
9,517 |
|
Coupe |
7,029 |
|
Hardtop |
65,176 |
|
|
|
|
Total Production |
81,722 |
|
|
|
|
400 Ram Air |
751 |
|
400 H.O. |
13,827 |
|
400 2BBL. |
2,967 |
|
400 Std. Engine |
64,177 |
|
|
|
|
Manual |
39,128 |
|
Automatic |
42,594 |
|
|
|
|
400 Ram Air (Auto) |
138 |
|
400 Ram Air (Manual) |
613 |
1968 GTO Engine Codes & Production Totals
|
Engine C.I.D. |
Carb. Type |
Trans. Code |
Std. Code |
Compression Ratio |
Horsepower |
|
400 |
4-BBL |
3-SPD.MAN |
WT |
10.75:1 |
350 |
|
400 H.O. |
4-BBL |
3-SPD.MAN |
WS |
10.75:1 |
360 |
|
400 |
4-BBL |
4-SPD. |
WT |
10.75:1 |
350 |
|
400 H.O. |
4-BBL |
4-SPD. |
WS |
10.75:1 |
360 |
|
400 R.A. |
4-BBL |
4-SPD.MAN |
XS |
10.75:1 |
360 |
|
400 |
4-BBL |
AUTO. |
YS |
10.75:1 |
350 |
|
400 |
2-BBL |
AUTO. |
XM |
8.60:1 |
265 |
|
400 H.O. |
4-BBL |
AUTO. |
YZ |
10.75:1 |
360 |
|
400 R.A. |
4-BBL |
AUTO. |
XP |
10.75:1 |
360 |
Special Note:
A 428 cubic inch motor could be ordered and
dealer installed in a 68 GTO, but there were no factory built 428 GTO`s. A
fully documented 428 GTO is very desirable and extremely rare. If not
documented this application is incorrect.
1968 GTO Production Totals
|
Hardtop |
400 Ram Air (Manual) |
757 |
|
|
400 Ram Air (Auto) |
183 |
|
|
400 H.O. (Manual) |
6,197 |
|
|
400 H.O. (Auto) |
3,140 |
|
|
400 2BBL. (Manual) |
0 |
|
|
400 2BBL. (Auto) |
2,841 |
|
|
400 Std.Engine (Manual) |
25,371 |
|
|
400 Std.Engine (Auto) |
39,215 |
|
Total Hardtop |
|
77,704 |
|
|
|
|
|
Convertible |
400 Ram Air (Manual) |
92 |
|
|
400 Ram Air (Auto) |
22 |
|
|