Re: The Second Packard "Twin Six"

Posted by 55PackardGuy On 2008/9/22 22:39:02
Quote:
As I suggested earlier, my belief is had Packard felt there was a market for a car in the Duesenburg price range, I suspect you would have seen the above "exotic" engine design features, in a reliable engine that would reflect traditional Packard philosophy - translation - would have blown the doors off the Dusie !

In answer to your question about combustion chambers - as for making the angle between the bores and the top of the block different from 90 degrees, GM tried that in some of its high performance engines many many years later.


I don't get the reference to a 'reliable engine.' Was the 2nd generation Packard V12 less reliable than its counterparts? Was Packard's philosophy to "blow the doors off" other big makes? It seems more like they wanted to produce an efficient engine that had a lot of useable power in everyday use. Who had hydraulic lifters back then anyway?

I think the GM engines you're referring to are the "Nailheads" of the '50s and '60s Buicks, with with overhead valves working in an upright motion while the cylinders ran at an angle. Kind of an upside-down version of the Packard design, but it's hard to make a comparison because Packard did not use overhead valves.

No matter who designed the 2nd generation Packard V12 valve geometry, it's quite different from anything I have seen.

Owen, you've got the blueprints, did the engineers sign them?

No matter, whether it was completely Packard engineered or not, I'd say it was a darn good application, and probably unique in automotive engine design.

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