4 cylinder '67 C-10

[grayw0lf]

Originally Posted by Longhorn Man

is this engine the same as the 2.5 pontiac iron duke? That was a 151 cubic inch engine...
Once it was a 2.5 in the late 70's, it went into everything, and is actually worth some money as a rebuildible core today.
It was in the monzas and the clone cars
S-10
Camaro/firebird (82 - 85ish)
Celebrity
Citation
Lumina
postal trucks
and maybe in the cavalier too

The Iron Duke 153cid is not the same as the 151cid they used a good bit in the 80's Fiero's & S-10's. For one, on the later model, the exhaust & intake are on different sides of the engine. The 153 in marine use was usually 110 - 130hp, depending on the years. The 151 in my former '89 S-10 was rated at a whopping 98hp!

In my opinion, the 151cid is a dog & a P.O.S. They were notorious for getting hot spots due to carbon buildup & burning the #2 or #3 piston.

[67_C-30]

The 153 Chevy II engine was never called the Iron Duke. The Iron Duke was the 2.5L 151 cu in Pontiac built engine. I have an old magazine from 1977 introducing the Iron Duke . My 1982 Camaro owners manual refers to the 4 cyl engine in the Camaro as the 2.5L "Iron Duke". I do agree that the 153 is a better engine. My granddather had a old inboard boat built in 60's with a 153, and ran it all the way up until about 5 years ago with engine problems in all those years. I think some people have sorta retronamed both of the engines the 151 and 153 Iron Duke, but its not correct to my knowledge. I can't find any factory literature referring to the 153 as an Iron Duke engine.