Head ID

YEAR
APP.
CASTING
VALVES
C.C. or C.R.
NOTES
1967
400 2bbl/4bbl
061
2.11/1.77
75
Pressed in studs - Unique open chamber
1967
400 4bbl RA I
97
2.11/1.77
72
Screw in studs- taller valve springs- D port
1967
400 4bbl RA I
997
2.11/1.77
72
Screw in studs- taller valve springs- D port
1967
326 2bbl
140
1.96/1.66
9.2 CR
Pressed in studs- D port
1967
326 4bbl
141
1.96/1.66
10.5 CR
Pressed in studs- D port
1967
400 2bbl
142
1.96/1.66
.
Pressed in studs- Low compression- D port
1967
400 2bbl/4bbl
143
1.96/1.66
75
Pressed in studs-D port
1967
400 std, HO
670
2.11/1.77
72
Screw in studs- dual valve springs- D port
1968
400 2bbl
14
1.96/1.66
90
Pressed in studs- D port (B & G Body)
1968
400 2bbl/4bbl
15
1.96/1.66
75
Pressed in studs- D port (B & G Body)
1968/9
400 std, HO
16
2.11/1.77
72
Screw in studs- dual valve springs- D port
1968
350 2bbl
17
1.96/1.66
80
Pressed in studs- D port (A & F Body)
1968
350 4bbl, HO
18
1.96/1.66
68
Pressed in studs- D port (A & F Body)
1968
400 4bbl, RAI
31
2.11/1.77
72
Screw in studs- dual valve springs- D port (A & F Body)
1968/9
400
62
2.11/1.77
75/72
Screw in studs- dual valve springs- D port
1968
400 RAII
96
2.11/1.77
71
Screw in studs- dual valve springs- D port
1969
400 2bbl
45
1.96/1.66
8.6 CR
Pressed in studs- Low Compression- D port (B & G Body)
1969
400/428 2bbl/4bbl
46
1.96/1.66
10 CR
Pressed in studs- High Comp.- D port 30 or 45 seat angle (B & G Body)
1969
350 2bbl
47
1.96/1.66
80
Pressed in studs- D port (A & F Body)
1969
350 4bbl, HO
48
2.11/1.77
69?
Screw in studs- dual valve springs- D port
1969
400 MT, RA, HO
48
2.11/1.77
72
D port RAIII
1969
400 RAIV
722
2.11/1.77
71
Screw in studs- dual valve springs-ROUND port
1970
350/400 2bbl
11
1.96/1.66
85
Pressed in studs- D port
1970
400 MT, RA
12
2.11/1.77
72
D port
1970
400
13
2.11/1.77
72
D port
1970
455 2bbl/4bbl
15
1.96/1.66
87
Pressed in studs- D port (B & G Body)
1970
400 2bbl/4bbl
16
1.96/1.66
10.1 CR
Pressed in studs- D port
1970
455 HO
64
2.11/1.77
87
D port
1970
400 RAIV ROUND PORT
614
2.11/1.77
71
Screw in studs- dual valve springs
1971
455
66
2.11/1.77
114
Press in studs
1971
350 2bbl
94
1.96/1.66
90
Screw in studs- D port
1971
400 4bbl
96
2.11/1.77
96
Screw in studs- dual valve springs- D port
1971
455 2bbl
98
1.96/1.66
114
Pressed in studs- D port
1971
400 2bbl
99
1.96/1.66
96
Pressed in studs- D port
1971
455 HO ROUND PORT
197
2.11/1.77
111
Screw in studs- dual valve springs
1972
455 HO ROUND PORT
7F6
2.11/1.77
111
Screw in studs- dual valve springs
1972
350 2bbl
7H1
1.96/1.77
90
Pressed in studs- 45/45 degree seats
1972
400 2bbl
7J2
1.96/1.77
96
Pressed in studs- 45/45 degree seats
1972
400 4bbl
7K3
2.11/1.77
96
Screw in studs- dual valve springs- D port
1972
455 2bbl
7L4
1.96/1.77
112
Pressed in studs- 45/45 degree seats
1972
455 4bbl
7M5
2.11/1.77
114
.
1973/74
455 SD ROUND PORT
16
2.11/1.77
111
Screw in studs- dual valve springs
1973/74
350
46
1.96/1.66
96
Press in or screw in studs
1973/74
350
4C-5H
1.96/1.66
96
Press in or screw in studs
1973/74
400
4C-8H
1.96/1.66
98
Press in or screw in studs
1973/74
455
4X-1(H)
2.11/1.66
112/114
Press in or screw in studs
1973/74
400
4X-3(H)
2.11/1.66
98
Press in studs
1973/74
400
4X-4(H)
2.11/1.66
98
Press in studs
1973/74
400
4X-7(H)
2.11/1.66
98
Screw in studs- dual valve springs
1975
350 4bbl
5C-4
2.11/1.66
93
Screw in studs
1975
350
5C-9
2.11/1.66
93
A.I.R.
1975
400 4bbl
5C-8
2.11/1.66
101
Screw in studs- 30/45 degree seats
1975
350/400 4bbl
5C-7
2.11/1.66
100
Screw in studs
1975
455
5C-6
2.11/1.66
124
Screw in studs
1975
455 4bbl
51
2.11/1.66
124
Screw in studs- 30/45 degree seats
1975/76
455 4bbl
6H
2.11/1.66
124
Screw in studs- 30/45 degree seats
1975/76
350
6S-9
2.11/1.66
93
.
1975/76
400
6S-7
2.11/1.66
100
.
1975/76
455
6S-6
2.11/1.66
124
.
1975/76
350/400
6X-4
2.11/1.66
98
Screw in studs- dual valve springs- D port
1975/76
400/455
6X-8
2.11/1.66
101
Screw in studs- dual valve springs- D port
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