Cobra v. GT/LX

Fostang · 03-06-2002, 06:19 PM

Anyone know if the cam off a 93 cobra is different from that of a 90-93 gt/lx? Also which will be better off with 1.7 rockers as far as building more hp or tq? Thanks

84LX89GT · 03-07-2002, 01:17 AM

I've heard that with 1.7 roller rockers having a '87-'88 camshaft is the best combination (i've heard those have the biggest profiles, but i may be wrong....don't have specs in front of me). I've heard that the cam that comes on the cobra is less aggressive than comparative years cam wise, but with the roller rockers they were more aggressive. In other words, using a non-cobra camshaft with the cobra ratio roller rockers would yield more of a power gain. I've heard that the cobra camshaft was about the same as the ones put in the MN-12 thunderbirds (during the one or two years that there was 5.0's in the newer T-birds) to provide more low end torque and as such the Cobra camshaft is occasionally called the "thunderbird" cam.
Can anyone verify/elaborate on this?

03-06-2002, 06:19 PM	#1
Fostang Registered Member Join Date: Feb 2001 Location: Stockton, Ca Posts: 599	Cobra v. GT/LX Anyone know if the cam off a 93 cobra is different from that of a 90-93 gt/lx? Also which will be better off with 1.7 rockers as far as building more hp or tq? Thanks __________________ 67' Fastback-Supercharged 4.6 DOHC Cobra, T-56, 8.8 more to come. 67' Coupe-EFI, AOD, 8.8 90 Gt-Supercharged,MAF,TB,1.7's ripper, bassani x, 3.55's, 01' cobras, headers. 89'GT-Supercharged,Heads,Cam,Intake,TB,MAF,power pipe,headers,offroad exhaust,black bullits.

03-07-2002, 01:17 AM	#2
84LX89GT Mustangs Join Date: Jul 2000 Posts: 1,938	I've heard that with 1.7 roller rockers having a '87-'88 camshaft is the best combination (i've heard those have the biggest profiles, but i may be wrong....don't have specs in front of me). I've heard that the cam that comes on the cobra is less aggressive than comparative years cam wise, but with the roller rockers they were more aggressive. In other words, using a non-cobra camshaft with the cobra ratio roller rockers would yield more of a power gain. I've heard that the cobra camshaft was about the same as the ones put in the MN-12 thunderbirds (during the one or two years that there was 5.0's in the newer T-birds) to provide more low end torque and as such the Cobra camshaft is occasionally called the "thunderbird" cam. Can anyone verify/elaborate on this? __________________ 2005 Suzuki Hayabusa GSX1300-R 1980 Ford Thunderbird - 255 V8 ported heads, 5.0L ported stock headers, O.R. H-pipe and Flowmaster 2-chambers, dual roller timing chain hi-po Mack Truck hood emblem 1985 Mustang GT 5.0L T5, F-303, GT40p, headers, off-road h, flowmasters, MSD stuff, etc. Sold 02/06/04 1989 Mustang GT ET: 13.304@102.29 mph (5-24-03) Sold - 1998 Mustang Cobra coupe, 1/4 mile - street tires: 13.843@103.41 (bone stock)

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