Quote:
Originally Posted by cjd
Outside chance it's an opportunity to use up existing stock.
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This makes more sense to me than the other ideas. The autos get a fair amount of the newer parts such as the bigger header, more rigid block, valve stem and cam journal finish, rocker arm pivots, fuel pump, etc. But for whatever reason they don't get the intake tract, the piston treatment, and a handful of smaller parts. Those things are peanuts as far as mpg is concerned, and from a manufacturing/servicing standpoint it doesn't make sense to have such trivial differences between them imo.