|
Pontiac V8 Cyl Head Info
While extensive efforts and the compilation of a number of print & internet published sources have been made to ensure this chart is correct, LOE GTO's makes no guarantees of 100% accuracy.
Year |
Engine (ci.) |
Cast Code |
Casting # |
Part # |
Stud Type |
Intake (in.) |
Exhaust (in.) |
Volume (cc) |
|
|
|
|
|
|
|
|
|
59 |
389 |
531395 |
|
|
Press |
1.88 |
1.60 |
68 |
60 |
389SD |
535461 |
535461 |
535460 |
Pinned |
1.92 |
1.60 |
68 |
60 |
389 |
536109 |
|
|
Press |
|
|
|
61 |
195/389 |
538177 |
|
|
Press |
1.92 |
1.66 |
|
61 |
389/421 SD |
540306 |
540306 |
540304 |
Pinned |
1.92 |
1.66 |
68 |
62 |
195/389 |
538177 |
|
|
Press |
1.92 |
1.66 |
|
62 |
389/421 SD |
540306 |
540306 |
540304 |
Pinned |
1.92 |
1.66 |
68 |
62 |
389/421 SD |
544127 |
544127 |
544124 |
Pinned |
2.02 |
1.76 |
68 |
63 |
389 |
543796 |
|
|
Press |
1.88 |
1.60 |
92 |
63 |
389/421 |
543797 |
|
|
Press |
1.88 |
1.60 |
72 |
63 |
389/421 SD |
544127 |
544127 |
544124 |
Pinned |
2.02 |
1.76 |
68 |
63 |
326 |
548232 |
|
|
Press |
1.88 |
1.60 |
|
63 |
389GTO/421HO |
9770716 |
9770716 |
9770981 |
Press |
1.92 |
1.66 |
68 (72) |
63 |
421SD |
9771980 |
9771980 |
9771983 |
Press |
2.02 |
1.76 |
65 |
63 |
326 |
9772652 |
|
|
Press |
1.88 |
1.60 |
|
64 |
389 |
543796 |
|
|
Press |
1.88 |
1.60 |
92 |
64 |
389GTO/421HO |
9770716 |
9770716 |
9770981 |
Press |
1.92 |
1.66 |
68 (72) |
64 |
326/389 |
9773345 |
|
|
Press |
1.92 |
1.66 |
70 |
65 |
326 |
22 |
|
|
Press |
1.88 |
1.60 |
60 |
65 |
326 |
62 |
|
|
Press |
1.88 |
1.60 |
70 |
65 |
389 |
75 |
9778775 |
9781078 |
Press |
1.92 |
1.66 |
92 |
65 |
389GTO/421 |
76 |
9778776 |
9781079 |
Press |
1.92 |
1.66 |
70 |
65 |
389/421HO |
77 |
9778777 |
9781081 |
Press |
1.92 |
1.66 (1.60) |
68 |
66 |
389 |
091 |
9782091 |
|
Press |
1.92 |
1.66 |
92 |
66 |
389/421 |
092 |
9782092 |
9784209 |
Screw |
1.92 |
1.66 |
70 |
66 |
389GTO/421HO |
093 |
9782093 |
9784212 |
Screw |
1.92 |
1.66 |
68 |
66 |
326 |
094 |
9782094 |
|
Press |
1.92(1.88) |
1.66(1.60) |
68 |
66 |
326 |
095 |
9782095 |
|
Press |
1.88 |
1.60 |
|
67 |
400 |
061 |
|
|
|
2.11 |
1.77 |
72 |
67 |
326 |
140 |
9786140 |
|
|
1.92 |
1.66 |
|
67 |
326 |
141 |
9786141 |
|
|
1.92 |
1.66 |
|
67 |
400 |
142 |
9786142 |
|
|
1.92 |
1.66 |
90 |
67 |
400 |
143 |
9786143 |
|
Press |
1.92 |
1.66 |
75 |
67 |
400/428 |
670 |
9787670 |
9788067 |
Screw |
2.11 |
1.77 |
72 |
67 |
400 RA |
997 |
9787997 |
9787997 |
Screw |
2.11 |
1.77 |
72 |
68 |
400 |
14 |
9791214 |
9792266 |
Press |
1.96 |
1.66 |
90 |
68 |
400 |
15 |
9791215 |
|
Press |
1.96 |
1.66 |
75 |
68 |
400/428 |
16 |
9791216 |
9790118 |
Screw |
2.11 |
1.77 |
72 |
68 |
350 |
17 |
9791217 |
|
Press |
1.96 |
1.66 |
72 |
68 |
350 HO |
18 |
9791218 |
|
Press |
1.96 |
1.66 |
64 |
68 |
400 RA I |
31 |
9792731 |
9792700 |
Screw |
2.11 |
1.77 |
72 |
68 |
400/428 |
62 |
9790062 |
9791559 |
Screw |
2.11 |
1.77 |
75 (72) |
68 |
400 RA II |
96 |
9793596 |
9794040 |
Screw |
2.11 |
1.77 |
71 |
69 |
400/428 |
16 |
9791216 |
9790118 |
Screw |
2.11 |
1.77 |
72 |
*NOTE: Some books show #16 used in 69, but this may
be totally incorrect. Concours guys - dont risk it! |
69 |
400 |
45 |
|
|
Press |
1.96 |
1.66 |
94 |
69 |
400/428 |
46 |
|
|
|
1.96 |
1.66 |
68 |
69 |
350 |
47 |
|
|
Press |
1.96 |
1.66 |
72 |
69 |
400 RA III |
48 |
9795048 |
9795043 |
Screw |
2.11 |
1.77 |
72 |
69 |
350 HO |
48 |
9795048 |
|
Screw |
2.11 |
1.77 |
64 |
69 |
400 |
62 |
9791562 |
9791559 |
Screw |
2.11 |
1.77 |
72 |
69 |
400 RA IV |
722 |
9796721 |
9796722 |
Screw |
2.11 |
1.77 |
71 |
70 |
350/400 |
11 |
9799611 |
|
|
1.96 |
1.77 (1.66) |
80 |
70 |
400 RA III |
12 |
9799612 |
9799496 |
Screw |
2.11 |
1.77 |
72 |
70 |
400 |
13 |
9799613 |
9799497 |
Screw |
2.11 |
1.77 |
75 |
70 |
455 |
15 |
9799615 |
|
|
1.96 |
1.66 |
87 |
70 |
400 |
16 |
9799616 |
478102 |
Press |
1.96 |
1.66 |
78 |
70 |
400 RA IV |
614 |
9799614 |
9799498 |
Screw |
2.11 |
1.77 |
71 |
70 |
455 |
64 |
9799364 |
9799362 |
Screw |
2.11 |
1.77 |
87 |
71 |
455 HO |
197 |
481197 |
481758 |
Screw |
2.11 |
1.77 |
111 |
71 |
455 |
66 |
481766 |
483714 |
Screw |
2.11 |
1.77 |
114 |
71 |
350 |
94 |
|
|
|
1.96 |
1.66 |
90 (96) |
71 |
400 |
96 |
481196 |
481760 |
Screw |
2.11 |
1.77 |
96 |
71 |
455 |
98 |
|
|
|
1.96 |
1.66 |
114 |
71 |
400 |
99 |
|
|
|
1.96 |
1.66 |
96 |
72 |
455 HO |
7F6 |
486076 |
485319 |
|
2.11 |
1.77 |
111 |
72 |
350 |
7H1 |
|
|
|
1.96 |
1.77 (1.66) |
80 |
72 |
400 |
7J2 |
|
|
|
1.96 |
1.77 (1.66) |
96 |
72 |
400 |
7K3 |
486073 |
486316 |
Screw |
2.11 |
1.77 |
96 |
72 |
455 |
7L4 |
|
|
|
2.11 |
1.77 |
114 |
72 |
455 |
7M5 |
486075 |
494498 |
|
2.11 |
1.77 |
114 |
73 |
455SD |
16 |
485216 |
485214 |
Screw |
2.11 |
1.77 |
111 |
73 |
350 |
46 |
|
|
Press |
1.96 |
1.66 |
89 |
73 |
350 |
4C |
494442 |
|
Press |
1.96 |
1.66 |
89 |
73 |
400 |
4C |
494449 |
|
Press |
1.96 |
1.66 |
98 |
73 |
455 |
4X (1H) |
488541 |
494331 |
Press |
2.11 |
1.66 |
114 |
73 |
400 |
4X (3H) |
488543 |
494333 |
Press |
2.11 |
1.66 |
98 |
73 |
400 |
4X (4H) |
488544 |
|
Press |
1.96 |
1.66 |
98 |
73 |
400 |
4X (7H) |
491347 |
|
Screw |
2.11 |
1.66 |
98 |
*NOTE: All 73 heads went to Screw-In Studs beginning
with castings dated around May 7, 1973. |
74 |
455SD |
16 |
485216 |
485214 |
Screw |
2.11 |
1.77 |
111 |
74 |
350 GTO ?? |
46 |
494346 |
|
Screw |
2.11 |
1.66 |
89 |
74 |
350 |
46 |
494346 |
494336 |
Screw |
1.96 |
1.66 |
98 |
74 |
350 |
4C |
494442 |
|
Screw |
1.96 |
1.66 |
89 |
74 |
400 |
4C |
494449 |
|
Screw |
1.96 |
1.66 |
98 |
74 |
455 |
4X (1H) |
488541 |
494331 |
Screw |
2.11 |
1.66 |
114 |
74 |
400 |
4X (3H) |
488543 |
494333 |
Screw |
2.11 |
1.66 |
98 |
74 |
400 |
4X (4H) |
488544 |
|
Screw |
1.96 |
1.66 |
98 |
74 |
400 |
4X (7H) |
491347 |
|
Screw |
2.11 |
1.66 |
98 |
75 |
400 |
5C |
495354 |
495345 |
Screw |
2.11 |
1.66 |
101 |
75 |
455 |
5I |
|
|
Screw |
2.11 |
1.66 |
124 |
75 |
455 |
6H |
|
|
Screw |
2.11 |
1.66 |
124 |
75 |
455 |
6S |
|
|
Screw |
2.11 |
1.66 |
115 |
76 |
455 |
6H |
|
|
Screw |
2.11 |
1.66 |
124 |
76 |
400 |
6S |
|
|
Screw |
2.11 |
1.66 |
101 |
76 |
455 |
6S |
|
|
Screw |
2.11 |
1.66 |
115 |
76 |
350 |
6X (4) |
|
|
Screw |
2.11 |
1.66 |
94 |
76 |
400 |
6X (8) |
500762 |
500801 |
Screw |
2.11 |
1.66 |
101 |
77 |
301 |
01 |
|
|
Screw |
|
|
|
77 |
400 W72 |
6X (4) |
|
|
Screw |
2.11 |
1.66 |
94 |
77 |
350 |
6X (4) |
|
|
Screw |
2.11 |
1.66 |
94 |
77 |
400 |
6X (8) |
500762 |
500801 |
Screw |
2.11 |
1.66 |
101 |
78 |
301 |
01 |
|
|
Screw |
|
|
|
78 |
400 W72 |
6X (4) |
|
|
Screw |
2.11 |
1.66 |
94 |
78 |
400 |
6X (8) |
500762 |
500801 |
Screw |
2.11 |
1.66 |
101 |
79 |
301 |
01 |
|
|
Screw |
|
|
|
79 |
400 W72 |
6X (4) |
|
|
Screw |
2.11 |
1.66 |
94 |
79 |
400 |
6X (8) |
500762 |
500801 |
Screw |
2.11 |
1.66 |
101 |
80 |
301 |
01 |
|
|
Screw |
|
|
|
81 |
301 |
01 |
|
|
Screw |
|
|
|
|