96-04 DOHC Cam Specs

[Mystic SVT]

These are the actual cam specs for all 96-04 factory ford DOHC cams (96-98 Cobra, 99-01 Cobra, 03-04 Mach 1/Cobra/Marauder/Aviator/Navigator, FR500, Cobra R, and Ford GT) sourced from SVTP.com

Mach 1, 03/04 Cobra, Aviator, Marauder, Navigator, Continental, Mark8:

Intake Camshaft RH-(YF3E 6A270 AB)
LH-(YF3E 6A271 AB)
Intake: 184 deg @ .050/.394 lift

Exhaust Camshaft RH-(YF3E 6A272 BB)
LH-(YF3E 6A273 BB)
Exhaust: 196 deg @ .050/.397 lift
114 lobe center

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96-98 Cobra:
Right side Intake - F6ZZ-6250-AA
Left side Intake - F6ZZ-6250-BA
Intake: Primary Lobe, 204 duration @.050/ .390 lift
Secondary Lobe, 204 duration @.050/ .390 lift

Right side Exhaust - F3LY-6250-C (96 - 97) and YF3Z-6250-AA (98)
Left side Exhaust - F3LY-6250-D (96 - 97) and YF3Z-6250-DA (98)
Exhaust: 196 duration @.050/ .390 lift
114 lobe center

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99/01 Cobra:
Intake: 200 duration @.050/.392 lift
Exhaust: 196 duration @.050/.390 lift
114 lobe center

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FR500 (M-6550-T46) Cam specs:
intake adv dur 258° @.003, [email protected] /.472 lift
exhaust adv dur 254° @.003, [email protected] /.472 lift
109° center line
204/214 spec’d

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GT Cams (actual as tested numbers, not Ford specs)
Intake: 189 @ .050"/.424 lift
Exhaust: 190 @ .050"/.448" lift
The centerline is up for debate as the set tested at 122/118 but I think the Ford states they are 114/114.

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Cobra R specs:
Intake: .515'' lift 212 deg dur @.050
Exhaust: .468'' lift 212 deg dur @.050

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[greenscobie86]

Cheers. Thanks for the info. Not enough of it floating around this site for 4v cars.

 

[g36 monkey]

Thanks man!

 

[MustangChris]

thanks man!

I agree, I'd like to see some more 4v action.

 

[Mystic SVT]

And just fyi for anyone that has a 03-04 mach or aviator motor in their mustang, the 96-98 cobra intake cams will gain you roughly an average dyno proven 20hp. If degreed they will add close to 30hp. Not bad for a set of intake cams that can be had from $120-$200. The 98 cobra intake cams are preferred since they use the same gears/cam bolts to 99-04 dohc cams, if you go with 96-97 cobra intake cams you will have to use 96-97 gears/cam bolts. The exhaust cams are the same for all years pretty much so no gains in changing those out when swapping in 96-98 cobra intake cams.

 

[MustangChris]

the difference being bolt-on vs. press-on gears, right?

 

[FrankenStang]

coolcool

 

[Mystic SVT]

the difference being bolt-on vs. press-on gears, right?

Nope, just a difference in the way the gear sits against the cam. I had some pics of them but can't seem to find them. Let me keep looking. What you have to do is basically grind the keyway down because if not when tightening them down the keyway will actually break the secondary timing gear. The 96-97 secondary gears are discontinued from ford so no way to get new ones. Another solution is to get Cloyes gears, they are multiple keyway gears so they are adjustable if you have the time and know-how on how to degree the cams.

 

[MustangChris]

Ah gotcha.... i know the 2v are pressed vs. Bolt. So i figured these were similar.... learn something new every day!!

 

[98fobra]

Are those the only numbers for the 96-98 canm because I have a set and none of the numbers match up with any of these

 

[Mystic SVT]

You sure they aren't Mark VIII cams? I've seen many for sale threads on many forums with guys trying to pass off mark VIII intake cams as 96-98 cobra intake cams.

 

[philly101]

Coo coo learn somthing new every day