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Identifying blocks

Pat Curran
 

im looking for help identifying two unique blocks and establishing correct values on each.  One block has dual port intakes attached to the drivers side, the other has tubes passing thru the block to the drivers side.  Any help greatly appreciated.  

Jim Bollman
 

Pictures would help. What are the casting numbers on the side of the block?

On Nov 14, 2019, at 7:19 AM, Pat Curran <racin@...> wrote:

im looking for help identifying two unique blocks and establishing correct values on each.  One block has dual port intakes attached to the drivers side, the other has tubes passing thru the block to the drivers side.  Any help greatly appreciated.   <40761E70-7C4C-4824-8615-5A6140177609.jpeg><8BAC10EF-81CD-4386-8819-88BBEB9D6668.jpeg><C1A7EE89-9F6C-4F15-9BFA-D5BC3E098C24.jpeg><DA67BCB0-8C40-446F-B14C-8B2005CBD794.jpeg><47C21342-C957-4B0D-BEA8-1F5AA5ADC027.jpeg><034E9B35-94C3-4AF2-B1FD-DB4392E8266F.jpeg><3ECB34EA-99DC-4643-AE49-E5A81E6C42AE.jpeg>

Jim Bollman
 

Sorry I didn't scroll down far enough.

Jim Bollman
 

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.


Jim...


On Nov 14, 2019, at 7:19 AM, Pat Curran <racin@...> wrote:

im looking for help identifying two unique blocks and establishing correct values on each.  One block has dual port intakes attached to the drivers side, the other has tubes passing thru the block to the drivers side.  Any help greatly appreciated.   <40761E70-7C4C-4824-8615-5A6140177609.jpeg><8BAC10EF-81CD-4386-8819-88BBEB9D6668.jpeg><C1A7EE89-9F6C-4F15-9BFA-D5BC3E098C24.jpeg><DA67BCB0-8C40-446F-B14C-8B2005CBD794.jpeg><47C21342-C957-4B0D-BEA8-1F5AA5ADC027.jpeg><034E9B35-94C3-4AF2-B1FD-DB4392E8266F.jpeg><3ECB34EA-99DC-4643-AE49-E5A81E6C42AE.jpeg>

Butch
 

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.

Butch

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.


Jim..