3.7L HR Grand AM Engine
the reasoning behind swapping HR heads in place of VHR heads came down to the fact that noone knows how to properly control the VVEL to do what was required from the power angle.
HR heads bolt right on, no voodoo required.
look closely at the pic on page 2 and you see Veronica. 4 cam phase control, and this engine made right at 400WHP in it's final configuration.
if you guys are really interested in the dirty details, PM me.
as far as finding this engine in a catalog or being able to order from Nissan... Grand AM rules state that any part used on a car must be available to anyone else on the grid or the public. this is to theoretically prevent cheating by using one off or exotic parts. noone wants to invest the kind of time required in development of parts and then have to share them with the world, so this is a simple way of trying to control costs. that being said, this does not mean that you can call nissan and simply order the parts.
-n-
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