Re: 351 cleveland???
i was told it was just the standard 351 crank, the 4mab crank is the sought after 1 because it was steel not cast. another person told me if its stamped 351 only this is standard, the 4ma crank was a lighter version and was a ford motor sport version a bit stronger still cast and the 4mab was the steel crank that came out in f trucks and gt's. dunno whos right, but sum theories my mates came up wif dunno where they heard it, im intrested in this answer too if any1 knows the real meaning.