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Forum: Engines

11-09-2015, 12:04 AM

Replies: 9

Oil And filter Change for a 7.4L V8 Mercrusier Engine

Views: 2,221

Posted By speedysprocket

So do the mercruiser oils have the zinc additives...

So do the mercruiser oils have the zinc additives (ZDDP) to help lubricate flat tappet cams? Not as big a deal in regular car or boat engines, but it wrecked a lot of racing cams when oil...

Forum: Engines

11-08-2015, 06:33 PM

Replies: 9

Oil And filter Change for a 7.4L V8 Mercrusier Engine

Views: 2,221

Posted By speedysprocket

Related to this- anyone know if the 7.4L has flat...

Related to this- anyone know if the 7.4L has flat tappet or roller lifters?

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