Worst Engines of All Time: GM's 2.5L Iron Duke 4-Cylinder - YouTube
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The Little Engines That Could, Part 4: Chevy II 153 Four – Six Minus Two Equals Roughly Unpopular | Curbside Classic
Cut-Down Engine of the Week: GM Iron Duke
The Iron Duke - GM's Worst Engine Ever? | GMParts Center Blog | GM Parts Center
Riding with the Iron Duke - Engine Builder Magazine
Junkyard Outtake: Put Up Your (Iron) Dukes | Curbside Classic
Any 4 cyl iron dukers? - Third Generation F-Body Message Boards
The Iron Duke - GM's Worst Engine Ever? | GMParts Center Blog | GM Parts Center
1988-1990 GM 2.5L Iron Duke Engine Block I4 W/Main Caps FWD Fiero 6000 OEM Nice! | eBay
Duke Engines' incredibly compact, lightweight valveless axial engine
Hot Rods - Iron Duke owners, will it work. | The H.A.M.B.
Iron Duke-The little engine that could... - YouTube
1983 Chevrolet Celebrity Challenges the World With Its Iron Duke Engine
File:1990 GM Iron Duke engine cut-away exhibit.jpg - Wikimedia Commons
strokerS10's holy grail of 151 performance data: 2.5l myths and differences. | fiero151
Amazon.com: DUKE BEAR HOME Teching Car Engine Model All-Metal Craftsmen Mini Single-Cylinder High Challenge Assembled Model Collection : Toys & Games
GM's Unkillable Iron Duke 4-Cylinder Engine Powered Dozens Of Trucks, Cars, and SUVs For Decades | DrivingLine
Cut-Down Engine of the Week: GM Iron Duke
Mailbag: Solving Fuel Starvation in Cool Temperatures for Fuel-Injected 2.5L Camaro - OnAllCylinders
Hot Rods - Iron duke in a model A | The H.A.M.B.
Cut-Down Engine of the Week: GM Iron Duke
