Found Factory cam specs

matt1967

Famous Member
200 CI

Advertised Duration (Exhaust):240 Deg
Advertised Duration (Intake):240 Deg
Cam Lift (Exhaust):.232"
Cam Lift (Intake):.232"
Cam Timing at .050" Lobe Lift (Exhaust Close):13 Deg Before Top Center
Cam Timing at .050" Lobe Lift (Exhaust Open):11 Deg Before Bottom Center
Cam Timing at .050" Lobe Lift (Intake Close):20 Deg After Bottom Center
Cam Timing at .050" Lobe Lift (Intake Open):22 Deg After Top Center
Degrees Overlap:27 Deg
Duration at .050" Lobe Lift (Exhaust):178 Deg
Duration at .050" Lobe Lift (Intake):178 Deg
Lobe Centerline (Exhaust):102 Deg
Lobe Centerline (Intake):111 Deg
Valve Lash (Exhaust):Hydraulic
Valve Lash (Intake):Hydraulic
Valve Lift (Exhaust):.348"
Valve Lift (Intake):.348"


All you have to do is search Napa's website add in a vehicle with the engine you want the specs on, put it all in, search for the cam, then click the cam part # and there ya go, you get just like above.

EDIT

ford must have changed cams, through the years, the above is for a '67 200 below is a '75 200. big diffrences, '75 cam is much hotter

Advertised Duration (Exhaust):252 Deg
Advertised Duration (Intake):252 Deg
Cam Lift (Exhaust):.245"
Cam Lift (Intake):.245"
Cam Timing at .050" Lobe Lift (Exhaust Close):11 Deg Before Top Center
Cam Timing at .050" Lobe Lift (Exhaust Open):16 Deg Before Bottom Center
Cam Timing at .050" Lobe Lift (Intake Close):24 Deg After Bottom Center
Cam Timing at .050" Lobe Lift (Intake Open):20 Deg After Top Center
Degrees Overlap:35 Deg
Duration at .050" Lobe Lift (Exhaust):185 Deg
Duration at .050" Lobe Lift (Intake):184 Deg
Lobe Centerline (Exhaust):103 Deg
Lobe Centerline (Intake):112 Deg
Valve Lash (Exhaust):Hydraulic
Valve Lash (Intake):Hydraulic
Valve Lift (Exhaust):.368"
Valve Lift (Intake):.368"
 
Matti, great find, however i would not even run either cam in my lawn mower.

Times have changed & so has cam timing.

In a stock engine i would run a cam in the 194-204 degree area @ .050 with at least .450" lift & still have a smooth idle and plenty of low end torque.

Still great info on how mild camshafts were 40 years ago. William
 
Wow! I orginally thought Ford ran two types of hydraulic cams for its garden variety I6's. A 252 and a later 256. Everything was 252 on low power Windsor 221, 260, 289 and most of the 200 and 250's had the 252. I guess the 240 is mechanical

The 256 cam was used on 351W, 351C, later Aussie 200's and 250's, and came into the 200 and 250 about the cat converter area.

Ford must have had some conservative internal memorandom on cams. The originator of the cam was possibly Mr Stirret, the guy who was a power unit Engineer at Ford on the Windsor engines. When the Cleveland came along in 1969, it had the first 256 degree cam.

The same engines with 1.73:1 valve gear got solid lifters. The Boss 302 and Boss 351 could be 290 degrees.
The rare Aussie 351C 4V had 310 degrees, and the later ones 300 degrees and then 280 in the last 351CJ.

All cams after 1975 stayed at 256, and it wasn't untill 1985 that Ford got 264 degree cams in there EFI 250's

Camshafts have yielded the greatest gain in reliability, and power. The 351C 4V's with 300 degree cams yielded 350 hp at 5800 rpm, while a hydraulic camed 1987 AUSCAR 351 C made 360 hp at 5500 rpm with less than 280 degrees.
 
Matt, Very interesting.

The Specs you posted for the '67 200 are the same as what we have in our book as for the 170. We had the same specs for the later engine. However, the .0050 durations were interesting too.

Aftermarket cams have the valves open faster, and higher. I would agree with wsa, that if you are rebuilding, and need a new cam for the rebuild, you should buy ANY of the aftermarket cams and be amazed with the power difference.

THANKS FOR POSTING THIS GEM.
 
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