Casting Numbers on a Model J Block?

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20 Jun 2011 17:13 #20334 by Joel
Joel replied the topic: Re: Block numbers?

Bob Roller wrote: Lycoming did cast other large blocks for trucks that had identical CID of 420 when finished.

Bob Roller


FYI: George Albright investigated the other Lycoming 420 block for the possibility of converting one to a Duesy block. They are completely different. The truck block is a flat head.

Joel Nystrom
1929 Duesenberg Model J Murphy Convertible Coupe

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  • Bob Roller
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20 Jun 2011 17:49 #20336 by Bob Roller
Bob Roller replied the topic: Castings/motor block
It would make no difference about the head. The term "designator" is the key. The CID was the same but the block wouldn't have to be.
Raydon Thompson once had a Kissel with a 420 CID flathead engine and the entertwined initials IH on the rear over the bell housing.The engine was not original to the Kissel and International trucks had nothing like it so it still remains a mystery. The head gasket blew and that's how the bore and stroke were discovered to be the same as a stock "J".It may have een an industrial engine by an obscure and now long gone/forgotten maker.

Bob Roller

Bob Roller

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20 Jun 2011 17:55 #20337 by Chris Summers
Chris Summers replied the topic:
A Kissel with a 420-cid engine...that must have been something to behold and try to drive.

Always interesting comparing notes on these old things.

Chris Summers
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Chandler-Cleveland Motor Club
CCCA

So we beat on, boats against the current, borne back ceaselessly into the past.

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