Pontiac
Head Specs
Click
Here for Edelbrock Aluminum Head
Installation Sheet
PONTIAC
HEAD CHART
|
CASTING
NUMBER
|
YEAR
& FACTORY APPLICATION
|
CHAMBER
VOL# CC'S
|
EXHAUST
PORT
|
NOTEWORTHY
ATTRIBUTES
|
528511
|
1958
370
|
62
|
D-Port
|
1.88/1.6
55-60 INT MAN
|
538177
|
61-62
389
|
62
|
D-Port
|
1.88/1.6
61-64 INT MAN
|
543797
|
63
389
|
62
|
D-Port
|
1.88/1.60
|
9770716
|
63
421 HO,64 GTO
|
65
|
D-Port
|
1.92/1.66
|
9771980
|
63
421 SD
|
64
|
D-Port
|
2.02/1.76
|
77
|
65
GTO, 65 421 HO
|
65
|
D-Port
|
INTAKE
MANIFOLD BOLT PATTERN IS THE SAME FOR ALL 65-79 HEADS.
|
093
|
66
389 GTO
|
65
|
D-Port
|
670
|
67
400 GTO
|
72
|
D-Port
|
97
|
LATE
67 RA GTO
|
65
|
D-Port
|
ALL
67 & UP HEADS HAVE 2.11/1.77 VALVES UNLESS OTHERWISE NOTED
|
37
|
EARLY
68 RA GTO
|
72
|
D-Port
|
96
|
LATE
68 RA GTO
|
72
|
ROUND
|
62
|
68
& 69 GTO AUTO TRANS
|
75
|
D-Port
|
|
16
|
68
GTO MANUAL TRANS
|
72
|
D-Port
|
|
17
|
68
350 TEMPEST
|
72
|
D-Port
|
1.96/1.66
|
18
|
68
350 HO
|
68
|
D-Port
|
1.96/1.66
|
47
|
68
& 69 350 AUTO TRANS
|
72
|
D-Port
|
1.96/1.66
|
48
|
69
RA3 400, 350 HO
|
68
|
D-Port
|
|
722
|
69
RA4 GTO FBIRD
|
72
|
ROUND
|
TALL
INTAKE PORT
|
12
|
70
400 RA GTO FBIRD
|
72
|
D-Port
|
|
13
|
70
400 GTO GP
|
72
|
D-Port
|
|
614
|
70
RA4 GTO FBIRD
|
72
|
ROUND
|
TALL
INTAKE PORT
|
64
|
70
455 HO GTO GP
|
87
|
D-Port
|
|
96
|
71
400 GTO GP
|
96
|
D-Port
|
|
66
|
71
455 ALL 4BBL
|
114+
|
D-Port
|
|
191(797)
|
71
455 HO
|
108-111
|
ROUND
|
TALL
INTAKE PORT
|
94
|
71
350 ALL
|
89
|
D-Port
|
1.96/1.66
|
7K3
|
72
400 ALL 4BBL
|
96
|
D-Port
|
LARGE
EXHAUST CROSSOVER OPENING ON 72-79
|
7M5
|
72
455
|
114
|
D-Port
|
7F6
|
72
455 HO
|
108-11
|
ROUND
|
TALL
INTAKE PORT
|
7H1
|
72
350
|
89
|
D-Port
|
1.96/1.77(ODD)
|
46
|
73,
74 350
|
89
|
D-Port
|
1.96/1.66
|
4X,4C
|
73,
74 400 ALL
|
96-111
|
D-Port
|
2.11/1.66
|
16
|
73,
74 455 SD
|
108
|
ROUND
|
TALL/WIDE
INT PORT
|
6X
|
75-79
350 & 400 ALL
75-76 455
|
see
chart below
|
D-Port
|
2.11/1.66
|
5C,5X,5G
|
75-76
455, SOME 350
|
93-114+
|
D-Port
|
2.11/1.66
|
EDELBROCK
|
PERFORMER
RPM ALUMINUM
|
72
or 87
|
ROUNDPORT
FLANGE
|
2.11/1.66
(1.77 optional)
|
HEAD C.C.'S ARE APPROXIMATE DUE TO PRODUCTION VARIANCES
OTHER
SPECIAL CASTING INFORMATION
YEAR
OF APPLICATION
|
ENGINE
CU. IN.
|
VALVE
SIZES
|
CASTING
NUMBER
|
ADDITIONAL
STAMPING I.D. NUMBER
|
CHAMBER
VOLUME CC'S
|
1975-76
|
400
|
2.11/1.66
|
6X
|
8
|
100.04
|
1975-76
|
455
|
2.11/1.66
|
6X
|
6
|
124.51
|
1977
|
350
|
2.11/1.66
|
6X
|
4
|
93.74
|
1977
|
400/W72
|
2.11/1.66
|
6X
|
4
|
93.74
|
1977
|
400
|
2.11/1.66
|
6X
|
8
|
100.04
|
1978
|
400
|
2.11/1.66
|
6X
|
8
|
100.04
|
1978-1979
|
400/W72
|
2.11/1.66
|
6X
|
4
|
93.74
|
HEAD STAMP LOCATION ON PONTIAC HEADS
CLICK IMAGE FOR LARGER VIEW
|
|