The Rolls Royce Griffon engine could produce 2,400 HP. How many HP would a modern day 37 litre piston engine produce and still have a fairly long life span? - Quora
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Rolls Royce " Griffon " Mk.61 64, 65, 66, 67, & 74 Aircraft Engine Repair and Recondition Manual AP 2234 K ,L & M Volume 2 - Aircraft Reports - Aircraft Manuals - Aircraft Helicopter Engines Propellers Blueprints Publications
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