Ford "FE" Camshaft Specifications


Part Number Application Lifter Lash Intake Events Exhaust Events Duration Lift Overlap Identification
Engine Year Open Close Open Close Intake Exhaust Lobe Valve Mark Location
C0AZ-6250-A 352/390 60/62 Hyd   26 ° BTC
31 ° ATC
64 ° ABC
5 ° ABC
67 ° BBC
10 ° BBC
23 ° ATC
36 ° BTC
270 ° 270 ° .232 .401 49 ° AA Between Dist Gear
and First Journal
C2SZ-6250-A 390--V6 61/62 Hyd   28 ° 30 BTC
29 ° 30 ATC
77 ° 30 ABC
14 ° 30 ABC
76 ° 30 BBC
18 ° 30 BBC
29 ° 30 ATC
33 ° 30 BTC
286 ° 286 ° .258 .446 58 ° Pink Stripe Between Dist Gear
and First Journal
C3AZ-6250-D 390/406--V4, V6, 8V
428--PC
63
66
Mech .025 40 ° 30 BTC
14 ° 30 ATC
85 ° 30 ABC
29 ° 30 ABC
88 ° 30 BBC
33 ° 30 BBC
37 ° 30 ATC
18 ° 30 BTC
306 ° 306 ° .298 .500 78 ° (Upside Down "A")B Between Last Lobe
and Last Journal
C3AZ-6250-T 390/PC 63/65 Mech .025 28 ° 30 BTC
28 ° 30 ATC
73 ° 30 ABC
16 ° 30 ABC
76 ° 30 BBC
19 ° 30 BBC
25 ° 30 ATC
31 ° 30 BTC
282 ° 282 ° .246 .440 54 ° (Upside Down "A")AA Between Last Lobe
and Last Journal
C3AZ-6250-U 352/390--PC 65/62 Hyd   22 ° BTC
35 ° ATC
68 ° ABC
9 ° ABC
68 ° BBC
11 ° BBC
22 ° ATC
37 ° BTC
270 ° 270 ° .232 .401 44 ° YA Between Last Lobe
and Last Journal
*C3AZ-6250-AA 427--4V/SPL
      --8V/SPL
63/67 Mech .025 40 ° 30 BTC
14 ° 30 ATC
85 ° 30 ABC
29 ° 30 ABC
88 ° 30 BBC
19 ° 30 BBC
37 ° 30 ATC
18 ° 30 BTC
306 ° 306 ° .298 .500 78 ° (Upside Down "A")BA Between Last Lobe
and Last Journal
C3SZ-6250-A 390--6V/SPL 63 Hyd   22 ° BTC
36 ° ATC
68 ° ABC
9 ° ABC
68 ° BBC
10 ° BBC
22 ° ATC
37 ° BTC
270 ° 270 ° .232 .401 44 ° (Upside Down "A")A Between Dist Gear
and First Journal
*C4A5-6250-B 427 63/67 Mech .025 22 ° BTC
36 ° ATC
88 ° ABC
28 ° ABC
88 ° BBC
31 ° BBC
56 ° ATC
3 ° ATC
324 ° 324 ° .248 .500 112 ° (Upside Down "A")M Between Dist Gear
and First Journal
C6AZ-6250-A 390/428
390--GT
67/69 Hyd   16 ° BTC
32 ° ATC
68 ° ABC
8 ° ABC
55 ° BBC
7 ° BBC
21 ° ATC
31 ° BTC
256 ° 256 ° .253 .438 37 ° (Upside Down "A")U Between Dist Gear
and First Journal
C6OZ-6250-B 390--GT
428--CJ
66/68
68/70
Hyd   18 ° BTC
30 ° ATC
72 ° ABC
22 ° ABC
82 ° BBC
28 ° BBC
28 ° ATC
24 ° BTC
270 ° 290 ° .278
.283
.481-I
.490-E
46 ° Light Blue Both Sides of
No. 3 Journal
C7AZ-6250-A 390--2V 67 Hyd   13 ° BTC
35 ° ATC
63 ° ABC
22 ° ABC
63 ° BBC
14 ° BBC
23 ° ATC
28 ° BTC
256 ° 266 ° .247
.249
.427-I
.431-E
36 ° (Upside Down "A")X Between Last Lobe
and Last Rear Journal
*C8AZ-6250-A 427-Auto 68 Hyd   18 ° BTC
29 ° ATC
72 ° ABC
23 ° ABC
82 ° BBC
29 ° BBC
28 ° ATC
19 ° BTC
270 ° 290 ° .278
.283
.481-I
.490-E
46 ° ABAB Between Last Lobe
and Last Rear Journal
*C8AX-6250-D 427 63/67 Mech .025 60 ° BTC
13 ° ATC
90 ° ABC
39 ° ABC
94 ° BBC
47 ° BBC
56 ° ATC
5 ° ATC
330 ° 330 ° .355 .600 116 ° C8AX-D On End of Last
Journal
C8AX-6250-C 427 63/67 Hyd   24 ° BTC
22 ° ATC
78 ° ABC
30 ° ABC
82 ° BBC
34 ° BBC
34 ° ATC
18 ° BTC
282 ° 296 ° .289 .500 58 ° C8AX-C On End of Last
Journal

* Has grooves in 2nd and 4th Journal.

Requires 0.100-inch milled off valve guide bosses and special non-Ford lightweight valve springs, retainers and pushrods because of 0.600-inch valve lift.

Valve lift shown is for stock rockerarm ratios for noted engine and can type
(1.73:1 for HYD or 1.76:1 for MECH)
Two sets of lift figures denotes different lifts for (1) intake and (2) exhaust lobes.


Taken from "Ford Performance" by Pat Ganahl
Available at Amazon

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