Engine Swap Guide Heavy Rotation
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Although it's much narrower than a Two-Valve 5.4 intake manifold, the stock Two-Valve 4.6 intake manifold can be used on the 5.4-liter bullet. Custom adapters (that align ports and water passages to the 5.4 heads) are necessary for this; 1-inch plates are available through Reichard Racing (www.reichardracing.com; $375). Stock 5.4 intakes are not preferred for this application, largely due to their height and positioning of the throttle body and sensors. View Related Article
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