016 331Ci Ford Small Block Engine Build Power Stroke
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14 Valves are from Ferrea and utilize hollow stems to save weight and give the engine an additional 500-1,000 usable rpm. Intakes are 2.02-inch and exhaust is 1.60-inch. Panhandle cracked open the Comp Cams catalog for the 331's beehive springs, retainers, and locks. View Related Article
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