[Birdman93]

In 91-92 Ford brought in the Sport model-basically an SC with the 5.0L.

93 brought out the 5.0L HO-the motor in these cars is different in one respect from the 5.0L in the 91-92. The engineers replaced the cam with the cam from the 93 Cobra-here is the info I found on this particular modification for 1993 Thunderbirds:



>>The information was obtained by talking with one of the engineers who now works at Ford Racing Performance Parts, and also from the Mustang 5.0 Technical Reference & Performance Handbook. The first portion is from page 117:

"Although these alterations combined to reduce the horsepower slightly compared to the GT-40 inlet system and heads used with the H.O. cam, they also improved bottom-end torque, produced a smooth, stable idle, and reduced hydrocarbon emissions. The standard Cobra cam, with it's less aggressive(than the H.O. cam's) profile, was also phased into production in the 1993 Thunderbird/Cougar's 200-horsepower 5-liter V8 to improve idle and emissions..."

Here are the roller cam specifications for the 1991-92 5.0L HO, and the 1993 5.0L HO-you can find this information on page 228.

91-92

Part Number F1ZE-6250-AA
Lift int/exh .278/.278
Duration .276/.266
Lobe Center 116/115

93

Part Number F3ZE-6250-CA

Lift .282/.282
Duration .270/.270
Lobe Center 115/121.5

This data was collected by W.E. Beaber, FoMoCo Powertrain Systems Engineer.<<