are your lobes showing? is there a cam cover off or a cam on the shelf…I want to verify the cam lobe…heel to lobe tip, dimensions on the cams…both Intake and Exhaust, and and both lifts…so…for C2444, C2237, C5717, C5718, and if you have a Mark7…C4488, C4489, C4038.
SO far…on used cams…look for approx 1.424 on C5717, C5718: and 1.360 on C2444, C2237.
1.349 on few lobes on the cams in Maddy’s FHC…unknown cam…can’t find C number yet…but it is a later replacement cam with the MC casting numbers…in the original cyl head.
This first one is stamped C.2444 in very tiny 1/16" characters and MC20889A in larger 1/8" characters, both at the front end. It has a bolt and oil thrower flange on the tail end, confirming that it was used on the intake side.
1.360 - 1.044 = .316
1.362 - 1.043 = .319
1.362 - 1.043 = .319
1.362 - 1.043 = .319
1.360 - 1.043 = .317
1.360 - 1.044 = .316
This second one is stamped at the front end in 1/4" high characters C.2237 on one side and C.2444 on the other side; it really is, with no MC numbers at all. How would the factory assembler know which it is? The tach drive is missing, but the position of the front lobe in relation to the alignment notch confirms it is an exhaust cam. At the tail end it is stamped SE in 1/4" letters, though why is not clear.
I suspect it is a first generation C.2237 exhaust. Was somebody trying to grind it down to be a higher lift and then stopped? Maybe, just a guess.
1.330 - .983 = .347
1.360 - 1.043 = .317
1.357 - 1.033 = .324
1.360 - 1.043 = .317
1.312 - .970 = .342
1.360 - 1.041 = .319
One from XK140 engine G4686-8S stamped C.5717 in 1/16" and MC20889E in 1/8" letters.
1.426 - 1.044 = .382
1.422 - 1.043 = .379
1.423 - 1.041 = .383
1.425 - 1.041 = .384
1.424 - 1.045 = .379
1.423 - 1.046 = .377
The other one from G4686-8S stamped C5718 in 1/16" and MC20889G in 1/8" letters.
1.422 - 1.041 = .381
1.423 - 1.040 = .383
1.423 - 1.040 = .383
1.425 - 1.040 = .385
1.423 - 1.040 = .383
1.423 - 1.041 = .382