30th Oct 2021, 16:48

"Iron duke" was not the 3.8 Buick V6. It was the nickname for the Pontiac 4 cylinder on the reviewed car. Due to the block and heads being made out of cast iron. Also the 3.8 was never used in the Pontiac 6000 model. V6 choices over the years were 2.8, 3.1 or a 4.3 diesel. Yes the 3.8 was used in the Bonneville.

30th Oct 2021, 17:32

Where do you get your information from? The Iron Duke was a 151 cubic inch 4 cylinder.