Contour Enthusiasts Group Archives Forums Modifications Duratec Performance Port and Polish?

IIRC, he got a deal from Bill P including the SVT intakes and the 3 liter block, right?

Bill had done some after market work on these parts that would need to be finished on the heads to match the ports on the manifolds.

You may not want to gasket match the LIM to the UIM since the gasket holes are waaaaaaaay larger than the internal ports of the UIM, meaning you'd have larger ports in the LIM which will cause a reduction in air speed. Match the LIM to the UIM ports and you'll be better off. Port matching is different than gasket matching in this case...