Iron Dukes??

[goinbroke2]

Nope, pony car.

[Ed Wright]

Originally Posted by goinbroke2

Nope, pony car.

Where do you see the difference?

[Hemi Moose]

The Iron Duke (also called the 2500, 151, Pontiac 2.5, Cross Flow, and Tech IV, though the decal on the air filter assemblies actually reads "4 Tech") was a 2.5 L (150.8 cu in) I4 piston engine. All Iron Dukes were built by Pontiac beginning in 1977 and ending in 1993. After this time, the GM 2.2 L OHV 4-cylinder replaced it across the entire lineup of vehicles that offered it.

This 151 was also used by American Motors (AMC) starting in 1980, as the base engine option in the RWD Spirit and Concord, and continuing in both cars through 1982. The AWD (4x4) Eagle carried the 151 as standard equipment for 1981, and carried it midway through the 1983 model year. It was also available (as the Hurricane) in economy model Jeep CJs. AMC replaced the Iron Duke 2.5L I4 with a 150cid Inline-4 of their own, derived from their evergreen sixes.
The Iron Duke is often confused with Chevrolet's Stovebolt-derived 153 from the 1960s Chevy II, but the engines are entirely different - the Iron Duke's intake manifold is on the passenger side, as opposed to the driver side.
Applications:

• 1977 Pontiac Astre
• 1977–1980 Pontiac Sunbird
• 1978–1980 Chevrolet Monza, Oldsmobile Starfire
• 1980–1982 AMC Concord
• 1980–1982 AMC Spirit
• 1980–1983 Jeep CJ
• 1980–1984 Oldsmobile Omega, Pontiac Phoenix
• 1980–1985 Buick Skylark, Chevrolet Citation
• 1981–1983 AMC Eagle
• 1982–1986 Chevrolet Camaro, Pontiac Firebird
• 1982–1989 Chevrolet Celebrity
• 1982–1991 Pontiac 6000
• 1982–1992 Buick Century, Oldsmobile Cutlass Ciera
• 1984–1988 Pontiac Fiero
• 1985–1987 Chevrolet S-10 Blazer, GMC S-15 Jimmy
• 1985–1993 Chevrolet S-10, GMC S-15/Sonoma
• 1985–1990 Chevrolet Astro, GMC Safari
• 1985–1987 Buick Somerset
• 1985–1991 Pontiac Grand Am, Oldsmobile Cutlass Calais
• 1986–1991 Buick Skylark
• 1987–1994 Grumman LLV (USPS delivery vehicle)
• 1990–1992 Chevrolet Lumina

More written here...

https://en.wikipedia.org/wiki/GM_Iron_Duke_engine

[Hemi Moose]

[norm saibene]

bob wollet was a great guy i use to race ihra with him he almost always qualified number 1 he was a stand up guy have nothing but good to say about him that is a awsome car he has

[chris ok]

Maybe I'm wrong but I think the duke has been mistaken for the quad 4.
anyone remember the quad 442.
Didn't the production duke engine have the oil filter in the oil pan. remove the drain plug and outr comes the filter. Been a while since I worked at Pontiac, 87, 88. Lots of replacing cam gears, no chains.
Anyone remember the recall 84C-15. In the fieros, leaking oil on the exhaust and poof.
Friend from Jeep has a complete built virgin Iron Duke Super Duty motor and parts too.

[Hemi Moose]

It seems there were several types of Oldsmobile Quad 4 motors...

Read more here...

http://en.wikipedia.org/wiki/GM_Quad-4_engine

[Hemi Moose]

Originally Posted by norm saibene

bob wollet was a great guy i use to race ihra with him he almost always qualified number 1 he was a stand up guy have nothing but good to say about him that is a awesome car he has.

Does anyone here have a photo of the engine compartment of the Iron Duke motor in this Firebird.

[Rich Biebel]

Originally Posted by Hemi Moose

The Iron Duke (also called the 2500, 151, Pontiac 2.5, Cross Flow, and Tech IV, though the decal on the air filter assemblies actually reads "4 Tech") was a 2.5 L (150.8 cu in) I4 piston engine. All Iron Dukes were built by Pontiac beginning in 1977 and ending in 1993. After this time, the GM 2.2 L OHV 4-cylinder replaced it across the entire lineup of vehicles that offered it.

This 151 was also used by American Motors (AMC) starting in 1980, as the base engine option in the RWD Spirit and Concord, and continuing in both cars through 1982. The AWD (4x4) Eagle carried the 151 as standard equipment for 1981, and carried it midway through the 1983 model year. It was also available (as the Hurricane) in economy model Jeep CJs. AMC replaced the Iron Duke 2.5L I4 with a 150cid Inline-4 of their own, derived from their evergreen sixes.
The Iron Duke is often confused with Chevrolet's Stovebolt-derived 153 from the 1960s Chevy II, but the engines are entirely different - the Iron Duke's intake manifold is on the passenger side, as opposed to the driver side.
Applications:

• 1977 Pontiac Astre
• 1977–1980 Pontiac Sunbird
• 1978–1980 Chevrolet Monza, Oldsmobile Starfire
• 1980–1982 AMC Concord
• 1980–1982 AMC Spirit
• 1980–1983 Jeep CJ
• 1980–1984 Oldsmobile Omega, Pontiac Phoenix
• 1980–1985 Buick Skylark, Chevrolet Citation
• 1981–1983 AMC Eagle
• 1982–1986 Chevrolet Camaro, Pontiac Firebird
• 1982–1989 Chevrolet Celebrity
• 1982–1991 Pontiac 6000
• 1982–1992 Buick Century, Oldsmobile Cutlass Ciera
• 1984–1988 Pontiac Fiero
• 1985–1987 Chevrolet S-10 Blazer, GMC S-15 Jimmy
• 1985–1993 Chevrolet S-10, GMC S-15/Sonoma
• 1985–1990 Chevrolet Astro, GMC Safari
• 1985–1987 Buick Somerset
• 1985–1991 Pontiac Grand Am, Oldsmobile Cutlass Calais
• 1986–1991 Buick Skylark
• 1987–1994 Grumman LLV (USPS delivery vehicle)
• 1990–1992 Chevrolet Lumina

More written here...

https://en.wikipedia.org/wiki/GM_Iron_Duke_engine

This info is not correct if my memory is any good......The first year Pontiac engines had both intake and exhaust manifolds on the same side of the engine.....drivers side.
The following year the new and improved cross flow head was on that engine. Thats how I recall it and I worked in a Pontiac dealer and worked on those cars regularly.
GM was producing some real junk and as a line mechanic I got to work on all sorts of engineering marvels......

This was the era of "corporate engines under the hood". Engines were calibrated so lean they could barely get out the driveway sometimes without bucking and missing......and my personal favorite....the odd fire Buick V6 3.8....shook so bad they had to add counterweights and soft engine and trans mounts.

I have some very funny stories from my days working on these cars and what we did to try and diagnose and fix some of these cars.

It was a Pontiac-Jeep-Subaru dealership and I worked on them all as an A Tech....

[goinbroke2]

Originally Posted by Ed Wright

Where do you see the difference?

Well Ed, the sports cars of the time were tiny european open top cars with 4 wheel independant suspension and the focus was on handling. (triumph/mg's/porche/etc.
While the mustang did compete in some "sporty car" races it was a 2+2 car that handled well (for that time period) and the focus was more on fun and affordability. It was at home on a twisty track but was also home on a dragstrip and had optional v-8 engines strictly for straight line.
Sports cars on the other hand were solely twisty cars and didn't accellerate well enough to compete in drag racing. A 1500lb car with 75hp was great zipping through the S's and switchbacks but laughable on a straightaway or dragstrip.

Now people car them musclecars which isn't right either. Musclecars were cars designed to purely go in a straight line, all muscle. A bigblock chevelle or torino or various hemi's fit that bill.

Camaro's/cuda's&challenger were all pony cars because they were built to fit into the "new" class of vehicle that the mustang started. Mustang, being a horse the class was called "pony".

Semantic's for the most part but the mustang was not intended to be or ever was comparable to a MG or triumph. (the same as a camaro was never meant to be)

Of course this is just my opinion too, the same as me hating imports is my opinion. hehehe