Edelbrock Performer Rpm Cylinder Heads Oil Feed
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The really early big Buick V-8s had a pressurized oil feed hole for their shaft rocker system that came up through the deck of the block near the front of the engine. The Edelbrock heads use a small-block Chevy-style valvetrain that feeds oil through the pushrods to the top of the engine, so the oil-feed hole needs to be blocked off on early Buicks. White Racing plugged this oil feed hole with a 0.35-inch aluminum plug. View Related Article
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