Please check notes in each part listing to ensure the Exhaust Manifold Gasket is correct for your 1973 PONTIAC GRANDVILLE with a 6.6L 400 engine. CORTECO, FEL-PRO, & VICTOR REINZ are competing brands, and each brand's Exhaust Manifold Gasket may be interchangeable. Special restrictions like "California only" or "with sport package" may indicate a Exhaust Manifold Gasket fits only certain 1973 PONTIAC GRANDVILLE models.
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