On Fri, 15 Dec 2006, Swygert, Francis G MSgt 436 CES/CECM wrote: > I have an article describing the Indy stock block engines. It states a > special 401 casting with 3.75" bore for an engine size somewhere in the > 200-250 cubic inch range. Will have to look up the article tonight for > more details -- it's easy to get to. It also mentions aftermarket main > caps. Has to be that block casting unless the block has been sleeved. > > Date: Thursday, December 14, 2006 10:52 PM > From: Nick ALFANO <71amx@xxxxxxxxxxxxx> > > Anyone have any information on a 401 block with an X > above the displacement casting and only a 3.750 bore. > There is also 401 cast into the intake valley. It has > very large water jackets and splayed main caps. It > might have been an endurance engine for one of the > racing sanctions with a long stroke and small bore. If I had the $$$$ I'd send you my 181ci Indy six, and you could build up both and race 'em agin each other! _______________________________________________ AMC-List mailing list AMC-List@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list or go to http://www.amc-list.com