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Ford Motor Co. Centrifugal Advance Specifications

NOTE: FOR ENGINE RPM AND DEGREES, MULTIPLY SPECIFICATIONS BELOW BY 2.
Distributor Part No. (1) Rot. (2) Automatic Advance (Distr. Degrees & RPM)
Degs. RPM Degs. RPM Degs. RPM Degs. RPM Degs. RPM Degs. RPM Max.Degs. RPM
C8AF-B C 0-1/2 350 0-1/2 500 1 3/4-3 3/4 750 2 3/4-5 1000 4 1/2-6 3/4 1500 6 1/4-8 3/4 2000 11 .........
C8VF-C CC 0-1/2 350 0-1/2 500 2 1/4-4 1/2 750 6 1/2-8 1/2 1000 9-10 1/2 1500 9-11 1/2 2000 14 2975
C9DF-B C 0-1/2 350 0-1 1/2 500 4 1/2-6 1/2 750 7-9 1000 9-11 1/2 1500 11 1/4-13 3/4 2000 14 2050
DOAF-AE CC 0-1/2 350 0-1/2 500 0-1 1/2 750 6-8 1000 7 1/4-9 1/4 1500 8 1/4-10 3/4 2000 13 2500
DOAF-Y CC 0-1/2 350 0-1/2 500 0-1 3/4 750 6-8 1000 8-10 1/2 1500 10-12 1/2 2000 14 2325
DOAF-Z CC 0-1/2 350 0-1/2 500 2 1/4-4 1/4 750 6 1/2-8 1/2 1000 8-10 1/4 1500 9-11 1/2 2000 14 2950
DODF-C C 0-1/2 350 1/2-2 1/2 500 4 3/4-6 3/4 750 9-11 1000 10-12 1/2 1500 11 1/4-13 3/4 2000 16 2800
DOOF-A C 0-1/2 350 1/2-2 1/2 500 6-8 750 7 1/4-9 1/2 1000 10-12 1/4 1500 12 1/2-15 2000 16 2175
DOOF-AA CC 0-1/2 350 0-1 1/2 500 5-7 1/4 750 8-10 1000 10 1/4-12 1/2 1500 12 1/2-15 2000 16 2200
DOOF-AC CC 0-1/2 350 0-1/2 500 0-1 3/4 750 6-7 1000 7 1/4-9 1/4 1500 8 1/4-10 3/4 2000 13 2500
DOOF-G CC 0-1/2 350 0-1/2 500 3-5 750 5 1/2-7 1/2 1000 6 3/4-8 3/4 1500 7 3/4-10 1/4 2000 13 2500
DOOF-T CC 0-1/2 350 0-1 1/2 500 2-4 750 4 1/2-6 1/2 1000 7 3/4-10 1500 10-12 1/2 2000 14 2300
DOOF-U CC 0-1/2 350 1 1/4 -3 1/4 500 5 1/4-7 1/4 750 6 1/4-8 1/4 1000 8 1/4-10 1/2 1500 10 1/4-12 3/4 2000 14 2275
DOOF-V CC 0-1/2 350 0-1/2 500 3/4-2 3/4 750 3 3/4-5 3/4 1100 8 1/2-10 3/4 1500 10 1/4-12 3/4 2000 14 2300
DIAF-CA C 0-1/2 350 0-1/2 500 0-1/2 750 1-3 1/4 1000 6-8 1500 7 1/2-10 2000 18 2500
DIAF-GA CC 0-1/2 350 0-2 500 4 1/2-6 1/4 750 5 1/2-7 1/2 1000 7 1/2-9 3/4 1500 9 1/2-12 2000 13 2500
DIAF-HA CC 0-1/2 350 0-1 1/2 500 5-7 750 7 1/2-9 1/2 1000 9 1/2-11 1/2 1500 11 1/2-14 2000 18 2500
DIAF-KB C 0-1/2 350 0-1/2 500 0-1 1/2 750 6 1/2-8 1/2 1000 9 3/4-11 3/4 1500 12-14 1/2 2000 15 2300
DIAF-LB CC 0-1/2 350 2 1/2-4 1/2 500 7 3/4-9 3/4 750 9-11 1000 11 1/2-13 1/2 1500 13 3/4-16 1/2 2000 18 2500
DIAF-NA CC 0-1/2 350 0-1/2 500 3-7 750 8-10 1000 10 1/2-12 1/2 1500 11 1/2-14 2000 14 2500
DIDF-BA .............. .............................. .............................. .............................. .............................. .............................. .............................. ..............
DIDF-BB C 0-1/2 350 0-3/4 500 3-5 750 7 1/4-9 1/4 1000 9 1/2-11 3/4 1500 10 1/4-12 3/4 2000 14 2500
DIDF-CA .............. .............................. .............................. .............................. .............................. .............................. .............................. ..............
DIDF-EA CC 0-1/2 350 0-1/2 500 0-1 3/4 750 5 1/2-8 1/2 1000 7 1/4-9 1/4 1500 8 1/4-10 3/4 2000 13 2500
DIDF-FA C 0-1/2 350 0-2 500 3 1/4-5 750 6 1/4-8 1/4 1000 9-11 1500 10 1/2-13 2000 14 2500
DIDF-GA C .............................. .............................. 0-2 850 5-7 1050 9-11 1/4 1500 11 1/2-14 2000 ....................
DIFZ-A CC 0-1/2 350 3 3/4-5 3/4 750 6 1/4-8 1/4 1000 7 1/2-9 1/2 1500 8 3/4-10 3/4 2000 9 3/4-11 3/4 2500 11 3/4 2500
DIFZ-B C 0-1/2 350 1 1/2-3 1/2 750 5 1/2-7 1/2 1000 7 3/4-9 3/4 1500 9 3/4-11 3/4 2000 12-14 2500 14 2500
DIFZ-C CC 0-1/2 350 0-1/2 750 3-5 1000 8 1/2-10 1/2 1500 10 1/2-12 1/2 2000 10 1/2-12 1/2 2500 12 1/2 2500
DIMF-AB CC 0-1/2 350 0-1/2 500 0-2 1/4 750 2 1/4-4 1/2 1000 6 3/4-9 1500 11-13 1/2 2000 14 2500
DIMF-BA CC 0-1/2 350 0-1/2 500 1/2-2 1/2 750 4 1/2-6 3/4 1000 8 1/2-11 1500 12 3/4-15 1/4 2000 16 2500
DIMF-FA CC 0-1/2 350 0-1/2 500 2 1/4-4 1/4 750 6 1/2-8 1/2 1000 8-10 1/4 1500 9-11 1/2 2000 13 2500
D1OF-AA .............. .................. .................. .................. .................... ...................... ...................... ......................
D1OF-AB C 0-1/2 350 0-1 1/2 500 3 1/2-5 1/4 750 4 1/2-6 1/2 1000 7-9 1/4 1500 9 3/4-12 1/4 2000 14 2500
D1OF-BA .............. .................. .................. .................. .................... ...................... ...................... ......................
D1OF-BB C 0-1/2 350 0-1/2 500 0-1 750 3 1/2-5 1/2 1000 7-9 1/4 1500 9 3/4-12 1/4 2000 14 2500
D1OF-AC CC 0-1/2 350 0-1 1/2 500 3 1/4-5 1/4 750 4 1/2-6 1/2 1000 7-9 1/4 1500 9 1/2-12 2000 14 2500
D1OF-GA CC 0-1/2 350 0-1/2 500 3 1/4-5 1/4 750 6 1/2-8 3/4 1000 8 1/4-10 1/2 1500 10-12 1/2 2000 13 2500
D1OF-LA CC 0-1/2 350 0-1/2 500 1/2-3 1/4 750 5 1/4-7 1/4 1000 6 3/4-9 1500 8 1/4-10 3/4 2000 18 2500
DISF-BA CC 0-1/2 350 0-1/2 500 2 1/4-4 1/4 750 6 1/2-8 1/2 1000 8-10 1/4 1500 9-11 1/2 2000 13 2500
DIVF-AA CC 0-1/2 350 0-1/2 500 3/4-2 3/4 750 4 1/2-6 1/2 1000 6-8 1/4 1500 7-9 1/2 2000 13 2500
DIZF-AA CC 0-1/2 350 0-1/2 500 0-1 1/2 750 2 3/4-4 3/4 1000 8 3/4-10 1500 8 1/2-11 2000 11 2500
(1) Part No. prefix and suffix stamped on housing.

Basic Ford Part No. (omitted) is "12127".
(2) C (Clockwise), CC (Counterwise) viewed from rotor end.
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