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 |
|
|
400 H.O. (Manual) |
766 |
|
|
400 H.O. (Auto) |
461 |
|
|
400 2BBL. (Manual) |
0 |
|
|
400 2BBL. (Auto) |
432 |
|
|
400 Std.Engine (Manual) |
3,116 |
|
|
400 Std.Engine (Auto) |
5,091 |
|
Total Convertible |
|
9,980 |
|
|
|
|
|
Total Production |
|
87,684 |
1969 GTO Engine Codes & Production Totals
|
Engine C.I.D. |
Carb. Type |
Trans. Code |
Std. Code |
Compression Ratio |
Horsepower |
|
400 |
4-BBL |
3SPD.MAN |
WT |
10.75:1 |
350 |
|
400 R.A.III |
4-BBL |
3SPD.MAN |
WS |
10.75:1 |
366 |
|
400 |
4-BBL |
4SPD.MAN |
WT |
10.75:1 |
350 |
|
400 R.A.III |
4-BBL |
4SPD.MAN |
WS |
10.75:1 |
366 |
|
400 R.A.IV |
4-BBL |
4SPD.MAN |
WW |
10.75:1 |
370 |
|
400 |
4-BBL |
AUTO. |
YS |
10.75:1 |
350 |
|
400 |
2-BBL |
AUTO. |
XX |
8.60:1 |
265 |
|
400 R.A.III |
4-BBL |
AUTO. |
YZ |
10.75:1 |
366 |
|
400 R.A.IV |
4-BBL |
AUTO. |
XP |
10.75:1 |
370 |
1969 Production Totals
|
Hardtop |
400 Ram Air IV (Manual) |
549 |
|
|
400 Ram Air IV (Auto) |
151 |
|
|
400 Ram Air III (Manual) |
6,143 |
|
|
400 Ram Air III (Auto) |
1,986 |
|
|
400 2BBL. (Manual) |
0 |
|
|
400 2BBL. (Auto) |
1,246 |
|
|
400 Std. Engine (Manual) |
22,032 |
|
|
400 Std. Engine (Auto) |
32,744 |
|
Hardtop |
|
58,126 |
|
Hardtop Judge |
|
6,725 |
|
Total Hardtop |
|
64,851 |
|
|
|
|
|
Convertible |
400 Ram Air IV (Manual) |
45 |
|
|
400 Ram Air IV (Auto) |
14 |
|
|
400 Ram Air III (Manual) |
249 |
|
|
400 Ram Air III (Auto) |
113 |
|
|
400 2BBL. (Manual) |
0 |
|
|
400 2BBL. (Auto) |
215 |
|
|
400 Std. Engine (Manual) |
2,415 |
|
|
400 Std. Engine (Auto) |
4,385 |
|
Convertible |
|
7,328 |
|
Convertible Judge |
|
108 |
|
Total Convertible |
|
7,436 |
|
Total Judge |
|
6,833 |
|
Total Production |
|
72,287 |
1970 Engine Codes & Production Totals
|
Engine C.I.D. |
Carb. Type |
Trans. Code |
Std. Code |
Compression Ratio |
Horsepower |
|
400 |
4-BBL |
3SPD.MAN |
WT |
10.25:1 |
350 |
|
400 R.A.III |
4-BBL |
3SPD.MAN |
WS |
10.50:1 |
366 |
|
455 |
4-BBL |
3SPD.MAN |
WA |
10.00:1 |
360 |
|
400 |
4-BBL |
4SPD.MAN |
WT |
10.25:1 |
350 |
|
400 R.A.III |
4-BBL |
4SPD.MAN |
WS |
10.50:1 |
366 |
|
400 R.A.IV |
4-BBL |
4SPD.MAN |
WW |
10.50:1 |
370 |
|
455 |
4-BBL |
4SPD.MAN |
WA |
10.00:1 |
360 |
|
400 |
4-BBL |
AUTO. |
YS |
10.25:1 |
350 |
|
400 R.A.III |
4-BBL |
AUTO. |
YZ |
10.50:1 |
366 |
|
400 R.A.IV |
4-BBL |
AUTO. |
XP |
10.50:1 |
370 |
|
455 |
4-BBL |
AUTO. |
YA |
10.00:1 |
360 |
1970 Production Totals
|
Hardtop |
400 Ram Air IV (Manual) |
627 |
|
|
400 Ram Air IV (Auto) |
140 |
|
|
400 Ram Air III (Manual) |
3,054 |
|
|
400 Ram Air III (Auto) |
1,302 |
|
|
455 4BBL. (Manual) |
1,761 |
|
|
455 4BBL. (Auto) |
1,986 |
|
|
400 Std.Engine (Manual) |
9,348 |
|
|
400 Std.Engine (Auto) |
18,148 |
|
Hardtop |
|
32,737 |
|
Hardtop Judge |
|
3,629 |
|
Total Hardtop |
|
36,366 |
|
Convertible |
400 Ram Air IV (Manual) |
24 |
|
|
400 Ram Air IV (Auto) |
13 |
|
|
400 Ram Air III (Manual) |
174 |
|
|
400 Ram Air III (Auto) |
114 |
|
|
455 4BBL. (Manual) |
158 |
|
|
455 4BBL. (Auto) |
241 |
|
|
400 Std.Engine (Manual) |
887 |
|
|
400 Std.Engine (Auto) |
2,173 |
|
Convertible |
|
3,615 |
|
Convertible Judge |
|
168 |
|
Total Convertible |
|
3,783 |
|
|
|
|
|
Total Judge |
|
3,797 |
|
Total Production |
|
40,149 |
1971 Engine Codes & Production Totals
|
Engine C.I.D. |
Carb. Type |
Trans. Code |
Std. Code |
Compression Ratio |
Horsepower |
|
400 |
4-BBL |
3SPD.MAN |
WT |
8.20:1 |
300 |
|
455 H.O. |
4-BBL |
3SPD.MAN |
WL |
8.40:1 |
335 |
|
400 |
4-BBL |
4SPD.MAN |
WK |
8.20:1 |
300 |
|
455 H.O. |
4-BBL |
4SPD.MAN |
WC |
8.40:1 |
335 |
|
400 |
4-BBL |
AUTO. |
YS |
8.20:1 |
300 |
|
455 |
4-BBL |
AUTO. |
YC |
8.20:1 |
325 |
|
455 H.O. |
4-BBL |
AUTO. |
YE |
8.40:1 |
335 |
1971 Production Totals
|
Hardtop |
455 H.O. (Manual) |
476 |
|
|
455 H.O. (Auto) |
412 |
|
|
455 4BBL. (Manual) |
0 |
|
|
455 4BBL. (Auto) |
534 |
|
|
400 Std. Engine (Manual) |
2,011 |
|
|
400 Std. Engine (Auto) |
6,421 |
|
Hardtop |
|
9,497 |
|
Hardtop Judge |
|
357 |
|
Total Hardtop |
|
9,854 |
|
Convertible |
455 H.O. (Manual) |
21 |
|
|
455 H.O. (Auto) |
27 |
|
|
455 4BBL. (Manual) |
0 |
|
|
455 4BBL. (Auto) |
43 |
|
|
400 Std. Engine (Manual) |
79 |
|
|
400 Std. Engine (Auto) |
508 |
|
Convertible |
|
661 |
|
Convertible Judge |
|
17 |
|
Total Convertible |
|
678 |
|
|
|
|
|
Total Judge |
|
374 |
|
Total Production |
|
10,532 |
1972 Engine Codes & Production Totals
|
Engine C.I.D. |
Carb. Type |
Trans. Code |
Std. Code |
Compression Ratio |
Horsepower |
|
400 |
4-BBL |
3SPD.MAN |
WS |
8.20:1 |
250 |
|
400 |
4-BBL |
4SPD.MAN |
WK1 |
8.20:1 |
250 |
|
455 H.O. |
4-BBL |
4SPD.MAN |
WM2 |
8.40:1 |
300 |
|
400 |
4-BBL |
AUTO. |
YT |
8.20:1 |
250 |
|
455 |
4-BBL |
AUTO. |
YK |
8.20:1 |
250 |
|
455 H.O. |
4-BBL |
AUTO. |
YB |
8.40:1 |
300 |
|
400 |
2-BBL |
AUTO. |
XX |
8.60:1 |
265 |
Special Notes:
1 Indicates
Wide Ratio 4-Spd.
2 Indicates
Close Ratio 4-Spd.
1972 Production Totals
|
Coupe |
455 H.O. (Manual) |
3 |
|
|
455 H.O. (Auto) |
7 |
|
|
455 4BBL. (Manual) |
0 |
|
|
455 4BBL. (Auto) |
5 |
|
|
400 Std. Engine (Manual) |
59 |
|
|
400 Std. Engine (Auto) |
60 |
|
Total Coupe |
|
134 |
|
Hardtop |
455 H.O. (Manual) |
310 |
|
|
455 H.O. (Auto) |
325 |
|
|
455 4BBL. (Manual) |
0 |
|
|
455 4BBL. (Auto) |
235 |
|
|
400 Std. Engine (Manual) |
1,519 |
|
|
400 Std. Engine (Auto) |
3,284 |
|
Total Hardtop |
|
5,673 |
|
|
|
|
|
Total Production |
|
5,807 |
1973 Engine Codes (Early 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 Code (Late Production) & Production Totals
|
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:
1 Cars
Equipped With Unitized Ignition
2 High
Country Use
3 High
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 |
1974 Engine Codes & Production Totals
|
Engine C.I.D. |
Carb. Type |
Trans. Code |
Std. Code |
Calif. Code |
Compression Ratio |
Horsepower |
|
350 |
4-BBL |
MAN. |
WP |
-- |
7.62:1 |
200 |
|
350 |
4-BBL |
AUTO. |
YP |
-- |
7.62:1 |
200 |
|
350 |
4-BBL |
AUTO. 1 |
-- |
ZP |
7.62:1 |
200 |
|
350 |
4-BBL |
AUTO. |
YS |
-- |
7.62:1 |
200 |
Special Notes:
All 1974 GTO's were equipped with a 350
cubic inch V8, rated at 200 Horsepower at 4400 rpm. All had a 7.62:1
compression ratio. All were 4BBL equipped cars.
1 This denotes California usage only. Manual transmissions were not available for use in California in 1974. The 1974 GTO's that were sold in California were equipped with M38 transmissions (hydra-matic) and a 3:08:1 rear axle.
1974 Production Totals
|
Hatchback |
350 4BBL. (Manual) |
687 |
|
|
350 4BBL. (Auto) |
1,036 |
|
Total Hatchback |
|
1,723 |
|
Coupe |
350 4BBL. (Manual) |
2,487 |
|
|
350 4BBL. (Auto) |
2,848 |
|
Total Coupe |
|
5,335 |
|
|
|
|
|
Total Production |
|
7,058 |