Iron Dukes??

[Billy Nees]

Originally Posted by FED 387

No--first year for a 2.5L 151 Cu In engine was 1977--- it has been installed in millions of GM vehicles usually cars like Astre/Vega Nova/Fiero/S10 pick ups etc. etc--- largest car it was installed in was Camaro/Firebird in 82-84---the Super Duty 4 is a 151 in design only--- much beefier and totally performance oriented unlike the Stock 151 engines---

Actually, they are pretty much the same motor. The early ones didn't even have a cross flow head and looked just like the ChevyII motors.