IRON DUKE ENGINE DIAGRAM
GM Parts Center | The Iron Duke - GM's Worst Engine Ever
The Iron Duke was a 4-cylinder, cast-iron pushrod engine born from oil shortages and government standards that demanded cleaner vehicles. The Iron Duke would see itself in a slew of GM's vehicles during its production run from 1977 to 1993, including Pontiac Sunbirds, Chevy Blazers, GMC Safaris, Buick Centurys, and most notably, the Camaro.
GM 2.5 Iron Duke Specifications | It Still Runs
For General Motors, the engine of choice was the Iron Duke, a four-cylinder inline engine with an iron block and head. Engine Specifications. In 1977 Pontiac began production of the 2.5 L engine. It was GM's acknowledgment of the metric system as it was simply a 2.5-liter displacement engine which is equivalent to 50 cubic inches. Each[PDF]
Pontiac 2.5 Engine Build Information
The GM Super Duty aluminum intake is built by Edelbrock but available only thru GM. It allows using a Holley 350 or 500 cfm carburetor. The 2.5 Iron Duke has the same bell housing bolt pattern as a Chevy small block. The bell housing is basically Ford on the transmission side and Chevy on the engine side.
2 iron duke - YouTube
Sep 13, 20152.5 iron duke 5 speed. Static is life - Duration: 4:10. HardCore 91 S10 2 Tech 4 Chevy vacuum lines and general engine bay information - Duration: 9:44. whspioneer89 85,927
iron duke 4cyl, how good are they | The H.A.M.B.
Aug 04, 2016Unfortunately the Iron Duke Pontiac engine is not the same as the early Chevy II engine. Head bolt patterns are not the same but the crank can be used in the late model engine if you make a seal adaptor. The aftermarket parts from Pontiac were great but the production engine was a little light in many places.
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