PMC Posted April 3, 2023 Share Posted April 3, 2023 I have been running around B68 that was previously converted over to a diesel. I always assumed that it was a 673 in some version as it is not turbocharged. Today I was curious what version of 673 it is and was looking it over and found a tag that seems to identify as a ET673 -260 hp built in 1978 as well as the stamp by the injector pump housing. What little information I can find seems to indicate that it should be turbocharged? Anybody familiar with these? Thanks PMC Quote Link to comment https://www.bigmacktrucks.com/topic/72681-et673-260hp-turbo/ Share on other sites More sharing options...
davehummell Posted April 3, 2023 Share Posted April 3, 2023 I put in my 58 B a 673 that was made in 1980 in was out of a firetruck with an automatic transmission it has a turbo and the tag states it is a 260 hp engine. Quote Link to comment https://www.bigmacktrucks.com/topic/72681-et673-260hp-turbo/#findComment-528459 Share on other sites More sharing options...
67RModel Posted April 3, 2023 Share Posted April 3, 2023 Dang. I always thought the Thermodyne was killed off shortly after the Maxidyne was rolled out. I guess it wasn't..... 1 Quote Link to comment https://www.bigmacktrucks.com/topic/72681-et673-260hp-turbo/#findComment-528462 Share on other sites More sharing options...
PMC Posted April 3, 2023 Author Share Posted April 3, 2023 4 hours ago, davehummell said: I put in my 58 B a 673 that was made in 1980 in was out of a firetruck with an automatic transmission it has a turbo and the tag states it is a 260 hp engine. Can you load any pictures? I wonder how close to a 237 setup it is? Quote Link to comment https://www.bigmacktrucks.com/topic/72681-et673-260hp-turbo/#findComment-528465 Share on other sites More sharing options...
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