I put the SVT LIM gasket on the head last night. It looks like there is a number of places where the cutouts will make the walls mighty thin in some spots.

Has anyone had any problems with that?

I was also looking at the effect of leaving the secondary valves in. It seems to me that with the oval heads the secondaries would create less turbulance at low RPM. This is because the Secondary runner would be blocked off restricting the flow through to just the long runner. Then when the air enters the head it would open up to a larger space and enter the cylinder through both valves instead of just one - like on the 2.5 heads.

I am definitely taking the secondary butterflies out. Anybody else have any comments or thoughts?


1998 Contour SVT Black w/ Blue interior Torsen LSD updated shiftforks Lightened Flywheel, HD Drivelines Optimized Thottle Body 2003 3.0L engine upgrade (Soon to be)