Contour Enthusiasts Group Archives Forums Modifications Duratec Performance 3-liter conversion

I don't recollect exactly what it was in tenths of an inch, so I won't start any rumors. Terry stated that factory lift is 9mm though. I used a stick on magnetic degree wheel with pointer and found the duration. You can get one through Summit racing. I checked 4 positions on the front and rear side of the ramp as well as max lift vs degrees. The 3 liter cams were only marginally better which could have even been due to wear. Not enough difference to chase after. I have another set from my second 3 liter that I can measure again if I get time someday though...