Re: Identifying blocks


The first block, with the flanges on it, is a standard Cast Iron block, interestingly modified to cross-flow configuration.

The second block, with the tubes on it, is an early, transition/conversion block. Notice that it has a thin base flange and a flat, non-turbulator combustion chamber.

Value wise, it's what ever someone wants to pay.


On 11/14/2019 8:39 AM, Jim Bollman wrote:
Both are attempts to modify a stock block to get better gas flow for more power.�Broadwell is probably the best known modifier of the blocks for better gas flow. I have uploaded some PDF files of his directions on building engines and sports cars. Look especially at the�8portCrosley.pdf file and�EvenmorespeedCrosley.pdf.


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