Year Application Casting Valves CC or CR Notes
1967 400 2bbl/4bbl 61 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)
1968/69 400 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)
1968/69 400 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 SPRING- 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 2bbl 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 -
1975-79 350/400 6X-4 2.11/1.66 98 SCREW IN STUDS- DUAL VALVE SPRINGS- D PORT
1975-79 400/455 6X-8 2.11/1.66 101 SCREW IN STUDS- DUAL VALVE SPRINGS- D PORT