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.
A 'blown' exhaust gasket can be detected by excessive noise from the exhaust, and by white burn marks around the manifold flange. The intake and exhaust manifolds may be on opposite sides of the cylinder head, or they may be combined or bolted close together. If the engine has a V-configuration, there will be exhaust manifolds on the outer side of each cylinder bank, but probably just one intake manifold located in the centre of the V. Apply penetrating oil to all nuts or bolts which have to be undone, including the exhaust-pipe clamp fixing.