Contour Enthusiasts Group Archives Forums Modifications Duratec Performance Variable Geometry Intakes

The Yamaha engine got it's 220hp without variable valve timing. The 220 and 250 hp versions of the Duratec have variable valve timing. Also, I don't think the 2.5 liter Duratec, even with it's shorter stroke, could survive 7400rpm visits every other 5 minutes like my 3.0 SHO engine did. The Contour's engine bay with the Duratec is just as cramped as my '94 Taurus SHO engine bay was. Only downside I can think of about the SHO engine is that the parts do cost alot more.