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Does anyone know what a factory motor uses fo internals on their 700 and 850 motors. I guess they use the tall deck bowtie block and aluminum heads. I think both are 4.5 bore and 4.375 stroke. It is easy to build a 557 that makes the power they do but they seem to stay together very well. Thought I would look into what they do.
 

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Does anyone know what a factory motor uses fo internals on their 700 and 850 motors. I guess they use the tall deck bowtie block and aluminum heads. I think both are 4.5 bore and 4.375 stroke. It is easy to build a 557 that makes the power they do but they seem to stay together very well. Thought I would look into what they do.
The 700 is a low deck 4.47 X 4.00 502CID



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