Which Air Filter works best for you for a 1970 442 with stock OAI setup ?

 

AC366C or the equivalent is what the factory spec'd and used. These filters are "thinner" than a conventional auto air filter from the era. You'll notice that a conventional filter doesn't fit under the W25/OAI inner metal lid.

Wix may have a similar filter....I'll check here.

 

Wix 42102 is the same thickness and interchanges w/the A366C....just looked at both here.

 

As Patton says, WIX 42102.

 

Thank you Gentlemen

 

For some reason my dad also used a Fram CA342 (as a new one is in a box, that was in the trunk).