The manifolds and carbs can be placed on the engine without doing any internal revsisons. I, too, doubt the car was built with the cross-ram at the factory, Chrysler of Canada did not offer the cross-ram manifold on any Canadian-built Chrysler product. And the only imported car with the cross-ram manifolding that Chrysler of Canada offered was the Chrysler 300-G. So the parts would have to have been imported if it was done when the car was new. I also bet that "... garage door opener which was on the dash of the car" is, in reality, the Automatic Beam Changer. Bill Vancouver, BC ----- Original Message ----- From: <dardal@xxxxxxxxxxxxxxx> To: <mailing-list@xxxxxxxxxxxxxxxx> Sent: Friday, February 07, 2003 6:27 AM Subject: IML: Imperial and cross-rams > Quoting Elijah Scott <imperial1971@xxxxxxxxx>: > > > > I seriously doubt that any Imperials left the assembly > > line with the cross rams (but it was possible, 'cause > > in the '60s, you could order dang near anything). But > > it would have been very easy for buyers to have > > requested them and have the dealer install them. > > In order to get a proper conversion to the 375 hp 413, in addition to the cross > rams, you would need to also replace the cam. There may be more internal > differences between a standard 413, and the high output 413 of the letter cars, > but the two major performance mods are the intake manifold and the cam. > Installing the manifold with the stock cam may have negative effects. Would a > dealer undertake such modifications? > > D^2 > > > >