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.
Windsor engine characteristics. Thermostat housing bolted to the front of the intake manifold. All 289/302/351's have intake bolts 90 degrees to the ground. 289/302/351's have evenly spaced exhausts aimed 90 degrees from length of head. 5/8 (18mm) spark plugs.