Having to add Zinc to motor oil for flat lifter cams is a myth. This subject has been beat to death repeatedly yet it still surfaces.

It might be a good idea to throw some in during break in but all major motor oil manufacturers have reassured people that modern oils are perfectly capable of handling non-roller lifters.

Lifter/cam failures are almost always the result of cheap parts made from inferior materials.


Woody
Your Brother in Bolthood

My 1951 half-ton 'Ol Red

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