Iron Dukes??

[NWDragracing]

Larry Morgan campaigned a Pontiac Fiero powered with the Super Duty Iron Duke engine in Comp during his Sportsman racing days.

All the GM tooling was purchased by Kansas Racing products and you can still get the blocks and components to build an Iron Duke for racing.
Their block can be purchased with either a GM, Ford or Mopar part number and will accept different GM, Ford and Mopar cylinder heads.

http://www.kansasracingproducts.com/...cts/Notes.html

[david ring]

Al Ackerman was comp champ in 2010 with an iron duke in his F/D. Jason
Coan is #1 at Indy with an iron duke in his F/ED. Armstrong has the opel with the duke back from Greco now thàt Yediny is crewing for Jeggie-watch out, it was and will be fast. Lee Zane finished in the top 10 in comp twice with an Ackerman built iron duke in my car. And Phil Montief's first race car had an iron duke in it. Dukes rule.

[Hemi Moose]

Al Ackerman

[Tom P]

Isn't it the same engine with minor mods that came out in the 1962 Chevy II ?

[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---

[Hemi Moose]

Jason Coan...

[goinbroke2]

Originally Posted by BlueOval Ralph

GM went down this road several times a hair brain scheme to replace the Small Block Cheby with a 4 and V6 cylinders to be the engine of the future!

Pontiac = Iron Duke
Oldsmobile the Quad 4 (one year thier whole SEMA Show Display was based on this engine and they spent in excess $ 7 million on the Aero Tech)
Buick V6 (They spent close to a $100 million over 10 years
Cheby and the Tony Stewart Midget Engine a couple of years ago know just a boat anchor
Cheby and the Eco Tech 4 cylinder in Sport Compacts series at about $3.5 million for over 3 years

It sure has worked hasen't it?

Ralph, they were probably hoping to copy Fords success with the formula ford series and also the 2.3 in mini stockcars. Really good motor so it's suprising it's not more popular/successful.

[Hemi Moose]

Lee Zane...

[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.

[Rich Biebel]

I always thought the early Chevy II motor was the same basic block as the later Iron Duke.....

Pontiacs used the Duke and I changed a lot of blown exhaust manifold gaskets....The first ones in about 1977 had both intake and exhaust manifolds on the drivers side. Seemed to me like the heavy weight hanging on one side was making the maniofld gaskets fail.....
The next model year had the "crossflow" head......New and improved.....Right......

Boats used that 4 banger a lot......Mercruiser 120 I think it was....

I have seen some small standby generators that had the same basic GM 4 banger......and the castings usually say Hecho in Mexico

Generator builders used many common GM and Ford engines long after they were not used in cars anymore.....

Big and small block Chevs.....and Fords.

Add a small turbo and boost the HP for greater output.....