OK, I went and picked up a Wix oil filter for my boat-468 bbc tunnel ram,750s,10-1 comp. and of course they had more than one to offer-I thought Wix did not have a safety bypass in it, but the box says this one does, as well as an anti-drainback valve, which they say prevents dry starts each time the engine is started.Whaaaa? Anyway the part # on this filter is 51060. Is this the proper one for a boat application? They also had a # 51061. Help me Obi-wans.