Between 1999 and 2002, what differences were there between the SVT cobra
and the GT? As far as I can tell, they're the same displacement, but the
cobra is rated at higher HP.
And please give specifics if possible (valves open .024" more, downpipe is .5" thicker, etc.);
Any help is appreciated.
SOHC vs DOHC
Oh, and IRS vs live axle.
IRS meaning idependent rear suspension?
That is correct. :thumbs:
They actually were slightly different in displacement, but so little that it doesn't make a difference. Ford produced 3 different 4.6L blocks, color coded blue, yellow, red(?). Not so sure on the last one. The bores were different by, at most, a thousandth of an inch.
Any reasoning behind it? Or was it just 3 different plants?
So, why did they move to a DOHC system, were the rocker arms not reliable, or were there more valves?
And IRS vs. LRA doesn't really matter for me, I'm a practical straight line guy.
Anything else I should know about the cobras that I can't find on TSBs?
Ok, the Cobra engines were quite a bit different. Both were modular OHC 4.6 liters, but the Cobras got DOHC 4 valve heads, while the "regualar" cars were not 4 valve heads, and flowed worse. The Cobras got a slightly higher compression ratio, of course different cam lobe profiles, and a different exhaust, among other small things.
Would you say that it's worth the 4 grand more than the GT?
Yes, I would. But thats just me.
Can you tell me why?
It's worth more because it cost more, had more features, and fewer were
Kind of like asking why a '65 Shelby GT350 is worth more than a '65 Mustang K code fastback...
If I remember correctly, the Cobra also had a forged crank and beefed up rods...that baby was born to rev.
Come on man thats like asking why they moved from the 5.0 to the 4.6. I am just going off of what on the top of my head but 1 I believ the 4.6 was a smaller higher revving engine, although I believe 5.0 versus 4.6 GT 5.0 is better but the DOHC 4.6 found in the Cobra's is much superior. Of course Ford Combined these two to create a crate 4.6 DOHC bored out into a 5.0 DOHC engine, definitely the best engine of them all, but not price wise. Also in 97' and 98' Cobra's their stock power I believe was aroudn 300 hp and 300 torque while the GT's were around 215 HP and 285 torque, big difference.