Hi all have a question im new to this engine just got a free century 2000 sport lx and it has a mercruiser 470 170hp 4 cyl all serial numbers faded or worn off have found about 4 different ones that i can make out have looked by fan can't find any info to get year of boat or motor need some help with that and seen all info on manuals for alpha 1 etc. how do i know what i have thanks Michael
