Two weeks ago I picked up a Cobia 197SRV with a Magnum 350, and was told by the previous owner that the motor had forged internals. The boat is a 1988, the original engine was replaced with a Mercury Marine part#14152A 1 long block in 1994. This part is currently out of production so Mercury couldn't give me any specs. This engine appears to have aluminum heads. My question is if this block features 4 bolt mains, forged pistons and crank. If anyone has any info it would be greatly appreciated.