Engine expansion when hot?

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1 Post By eschaider
1 Post By patrickt

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01-01-2020, 10:01 AM

eschaider

CC Member

Join Date: Feb 2006

Location: Gilroy, CA

Cobra Make, Engine: SPF 2291, Whipple Blown & Injected 4V ModMotor

Posts: 2,741

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Here is a posting I did about the effect on an engine block and heads as the engine comes up to operating temperature. The focus is on head gaskets and why the recommendation to retorque after an initial heat cycle.

The math and the thermal expansion phenomena occur in all directions not just one so the model can help you to actually measure what you are interested in. Because everything is bolted together when cold the similar metals will exhibit similar geometry after warm up. The disimilar metals will not. Here is the link => Effect of Engine Warm Up on Engine Dimensions

Ed

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