Zinc for Crusader Engine?

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bshillam

Guru
Joined
May 18, 2013
Messages
801
Location
USA
Vessel Name
Our Heaven
Vessel Make
1997 4800 Navigator
Anyone know what zinc would be used in the Crusader 5.7L NA 1981 engine?
 
I found out yesterday by spending a few hours pulling and then cleaning the old threads what size. I would suspect some neglect led to the current situation. All the zincs were gone just the plugs left behind with quite a bit of sediment. Cleaned all the threads and new zincs with a schedule to check per recommendation.
 

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