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IH 6 cylinder gasoline engines


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Emission control would probably use different combustion chamber, piston top or head or both along with timing and carburetion.   They ruined the small v-8 with   head design, not sure about the six banger. IH switched to American Motors engines with the six cyl due to emission standards. 

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On 11/15/2020 at 4:04 PM, pete23 said:

Emission control would probably use different combustion chamber, piston top or head or both along with timing and carburetion.   They ruined the small v-8 with   head design, not sure about the six banger. IH switched to American Motors engines with the six cyl due to emission standards. 

when IH changed a model number they had changed parts, being a sd240 is a straight valve engine and a bg 241 is a slant valve engine about the only thing that is exactly the same is the water pump, oil pan gasket, and the cam gears  I don't feel like typing for an hour to list all the differences. The bd264 and the Bg265 are much closer cousins most of the parts are the same but they are not identical engines.

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