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.
HAVE FUN!!   A 350 head can physically bolt onto a 305 block. However, 350 heads can have the valves extend into the cylinder and contact the cylinder wall (even with the smaller 305 cam).   The 350 cam in the 305 with stock heads will work.he 283 used 64cc combustion chambers and the 305 used 76 cc, so you are going to probably have to go to the nest higher octane gas. You'd be better off getting some dime-a-dozen 305 heads from a wrecking yard. A word of warning. Don't try to use heads with 2.02/1.60 valves from a 327 or a 350 on a 283 or a 305.