Why the head switch
 

Why are people switching heads in the 98 and lower mustangs with a 99-2000 heads. Do they want to get the same amount of hp in their cars as the 99-2000's. Or will the
99-2000 heads give them more hp than the 99- 2000.

The big portion of the HP jump from 225 to 260 was due to new heads on the 99-00 compared to the 98. From what I've read, a gain of around 30 horses can be had by going to the SVO heads or the 99-00 heads. Taking into account the price of 96-98 SVO heads, some are taking a somewhat cheaper route and strapping on heads from 99-00 models....

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1998 Mustang GT
13.97@103
"Traction Impaired" or "Nitto Needy"

Pilot Proverb:
If all you can see out of the window is ground that's going round and round and all you can hear is commotion coming from the passenger compartment, things are not at all as they should be.

Its not just the heads, but also the intake manifold, and a long list of other parts totaling like $1400. I already have the intake manifold and gaskets sitting in my garage. The install at Ford runs like $1000 too, but it includes a warranty.

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T-Bones '96GT

'96 GT 5-speed
Roush Cold Air Kit w/ K&N, 80MM Mass Air, Mac Cat-Back, Mac Pro Chamber H-Pipe, FMS 3.73's, FMS 70MM TB, March U/D Pulleys.