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1955 272 2 bbl vs 4 bbl

Posted By junkyardjeff Last Month
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junkyardjeff
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Supercharged

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I do not know if I ever asked this question before but other then the carb what would be the difference between a 2 bbl vs 4 bbl 272,my 55 originally had the 4 bbl version but I stupidly sold it and trying to make one again but picked up a good running 55 2 bbl 272.  Going to use the 57 intake and newer distributor and newer exhaust manifolds on this 272.


Butchering up everything I can get my hands on in Dayton Ohio
Hoosier Hurricane
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Compression ratio difference?  4barrel probably had higher compression.

John - "The Hoosier Hurricane"
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Ted
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As John brings up, there is a compression ratio difference.  The compression ratio for the 2V engine is 7.6:1 while the 182HP Special has a CR of 8.5:1.  Early production 182HP Specials had ECL-6090-B cylinder heads while later production 182HP Specials had the ECG-6090-A heads.  These are casting numbers and not part numbers.


Lorena, Texas (South of Waco)




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