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Buick Engine Aluminum Heat Shield

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Between the intake manifold and the lifter valley is a sheet aluminum heat shield, which separates the underside of the manifold from hot oil splash, saving potentially lost horsepower.
Buick Engine - Bulldozer Torque

 Between the intake manifold and the lifter valley is a sheet aluminum heat shield, which separates the underside of the manifold from hot oil splash, saving potentially lost horsepower.  View Related Article

 

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