Moroso Breather Kits - Engine Builder Magazine
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Moroso Breather Kits

Moroso’s kits provide an easy way of adding a breather to GM LS OEM valve covers with an oil fill bung.

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Moroso’s kits provide an easy way of adding a breather to GM LS OEM valve covers with an oil fill bung. Remove oil fill bung on valve cover, screw in breather kit and tighten down with built-in hex.

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Both kits feature a baffled billet aluminum screw in adapter with a 1″ breather. Kits are cleanable and re-usable.

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