​​American Racing Engines

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McCulloch for 1961-62

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McCulloch for 1963-64

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McCulloch for 1967

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McCulloch for 1968

1970 MC 101A TECH REPORT

1970 MC 91B TECH REPORT

1972 Field Stripping & Rebuild Mc-91B

1975 Field Stripping & Rebuild Mc-92

Pressure Testing Mc-91 series Engine

The Changes of the New Mc91B1 from the Mc91B

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Horsepower Rating for Various Vintage Engines

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Below is a sample of some interesting Reed Open McCulloch's and miscellaneous ads.

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McBob's McCulloch Information

Since McBob's exellent website has went down and doesn't seem to be returning I have extracted and recovered some of his archived pages concerning McCulloch's. 

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 Steve O'Hara's McCulloch Information