buffer (bÅ­f'Ér) Chemistry A substance that prevents change in the acidity of a solution when an acid or base is added to the solution or when the solution is diluted.
These Ford Racing Performance Head Gaskets are specifically designed for use with cast iron or aluminum cylinder heads on a Ford 289, 302, 5.0L, or 351 Windsor V8 engine.
But thatâs not all. Moroso also offers an oil pan gasket (PN 27293) for the 7.3L Power Stroke. From the factory, the pan on these engines used a special sealant.