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.
Unbolt the intake manifold and remove the entire assembly from the engine, make sure to remove the intake manifold gasket carefully to prevent bending. Now you are ready to remove your spark plug cover by unscrewing the hex bolts located at the top of the engine.his problem is most prevalent in the Rb25, and this piece helps the oil find its way back into the sump. Weâll be removing the Welch plug in the back of the head and installing this unit in our How To Install a RB25 Oil Drain Fitting guide. That does it for part 1 of our how to change your RB25 headgasket.