dieselsmoke Posted November 2, 2006 Share Posted November 2, 2006 Hello againCan someone fill me in on some more Mack historyHow good were Mack engines back in the day? How did Mack engines (whichever series ) compare with 855 cummins or KT cummins and 1693 or 3406 CAT's in terms of reliability? Were Mack engines as good and reliable as Mack trucks?And which you think was the best Mack engine ever built both in terms of performance and longevity/reliabilitythanks Quote Link to comment https://www.bigmacktrucks.com/topic/1656-best-engine/ Share on other sites More sharing options...
GearheadGrrrl Posted November 2, 2006 Share Posted November 2, 2006 The KT was used mostly in construction equipment, industrial applications, and even the occassional locomotive- thusly it's not a good engine to compare to Mack's. Quote Link to comment https://www.bigmacktrucks.com/topic/1656-best-engine/#findComment-8148 Share on other sites More sharing options...
dieselsmoke Posted November 2, 2006 Author Share Posted November 2, 2006 the small KTs were used in trucks too, though the KT line extended to really big engines Quote Link to comment https://www.bigmacktrucks.com/topic/1656-best-engine/#findComment-8151 Share on other sites More sharing options...
HK Trucking Posted November 2, 2006 Share Posted November 2, 2006 the small KTs were used in trucks too, though the KT line extended to really big enginesAll the KT's were the same size:1150 cubic inch displacement.They were available in various horsepower ratings, and in aftercooled & non aftercooled configurations.Physically they are (were) all the same size.I have seen some KTA's (the "A" stands for aftercooled) rated at 650 HP installed in trucks.As for the question about best Mack engine, I vote for the ENDT 675 Maxidyne - virtually bulletproof. Quote "If You Can't Shift It Smoothly, You Shouldn't Be Driving It" Link to comment https://www.bigmacktrucks.com/topic/1656-best-engine/#findComment-8152 Share on other sites More sharing options...
dieselsmoke Posted November 3, 2006 Author Share Posted November 3, 2006 I was refering to KTA38 which was V12, KTA50 which was V16 etc. Those I considered larger KTs Quote Link to comment https://www.bigmacktrucks.com/topic/1656-best-engine/#findComment-8155 Share on other sites More sharing options...
GearheadGrrrl Posted November 3, 2006 Share Posted November 3, 2006 Even the 6 cylinder KTs were too heavy for normal highway haulage, weighing in at 3500 pounds, some 600 pounds heavier than the Mack E9 V8 and 1300 pounds heavier than the Mack 6 cylinder engine. The Cat 1693 and 3406 and the Cummins 855 were also hundreds of pounds heavier than the Mack 6, and were more competitors for the E9 V8 that clearly outclassed them. The 6 cylinder Macks competitors are really the M11, the 11 and 13 litre Cats, and the 50 series Detroit. In that competition Mack offers several exclusive features like the Maxidyne, etc. Quote Link to comment https://www.bigmacktrucks.com/topic/1656-best-engine/#findComment-8157 Share on other sites More sharing options...
theakerstwo Posted November 3, 2006 Share Posted November 3, 2006 All the KT's were the same size:1150 cubic inch displacement.They were available in various horsepower ratings, and in aftercooled & non aftercooled configurations.Physically they are (were) all the same size.I have seen some KTA's (the "A" stands for aftercooled) rated at 650 HP installed in trucks.As for the question about best Mack engine, I vote for the ENDT 675 Maxidyne - virtually bulletproof.I say endt675 if you bont need big power very goog engine untill fuel is set up too much Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/1656-best-engine/#findComment-8158 Share on other sites More sharing options...
Lmackattack Posted November 3, 2006 Share Posted November 3, 2006 I would also say that the 2V and 4V maxidynes were Macks most reliable,easy to maintain and would run with the best of them. Not a huge power house when compaired to the larger displacement engines. but the maxidynes after almost 40 years can still perform just as good as these new engines. Quote Link to comment https://www.bigmacktrucks.com/topic/1656-best-engine/#findComment-8161 Share on other sites More sharing options...
rainyday128 Posted November 3, 2006 Share Posted November 3, 2006 How did Mack engines (whichever series ) compare with 855 cummins or KT cummins and 1693 or 3406 CAT's in terms of reliability? The KT is not one of Cummins' proudest moments. Mack sold a lot more E9's and over a lot more years despite only being available in just one make.And which you think was the best Mack engine ever built both in terms of performance and longevity/reliabilityHagerstown built its millionth engine in 2002. probly the most popular one of those was the ENDT675. I have seen it gross as much as 130,000 lbs. OK not very fast but that little engine would pull. If you look at all the mixers and dumps that were built with it you can say, "this is the engine that built America." Quote Link to comment https://www.bigmacktrucks.com/topic/1656-best-engine/#findComment-8163 Share on other sites More sharing options...
lucerne tractor Posted November 3, 2006 Share Posted November 3, 2006 Hello againCan someone fill me in on some more Mack historyHow good were Mack engines back in the day? How did Mack engines (whichever series ) compare with 855 cummins or KT cummins and 1693 or 3406 CAT's in terms of reliability? Were Mack engines as good and reliable as Mack trucks?And which you think was the best Mack engine ever built both in terms of performance and longevity/reliabilitythanksGot a 37 yr old ENDT675 with a TRQ 7220 18spd and a Rad 529 5.78 ratio rear, what do you want me to pull? Delivered a backhoe the other night, large JD, that with the trailer around 24,000 never felt it, ran 65@2000 Quote Link to comment https://www.bigmacktrucks.com/topic/1656-best-engine/#findComment-8174 Share on other sites More sharing options...
fullfuel01 Posted November 3, 2006 Share Posted November 3, 2006 my DMM with a 285 mixer truck with a 5 speeds can handle any truck with a 350 (non mack for sure).small but unbeatable! Quote Link to comment https://www.bigmacktrucks.com/topic/1656-best-engine/#findComment-8175 Share on other sites More sharing options...
lucerne tractor Posted November 4, 2006 Share Posted November 4, 2006 my DMM with a 285 mixer truck with a 5 speeds can handle any truck with a 350 (non mack for sure).small but unbeatable!How good were Mack engines back in the day? Back in the day? Seems it's going to be a few yrs before the 673 675 will be something you just remember, too many to count still working every day. Quote Link to comment https://www.bigmacktrucks.com/topic/1656-best-engine/#findComment-8177 Share on other sites More sharing options...
mudslut28 Posted November 5, 2006 Share Posted November 5, 2006 Thats what Im thinking. Back in the day? Hell most of em are still going. Again simplicity is brilliance. Quote Link to comment https://www.bigmacktrucks.com/topic/1656-best-engine/#findComment-8214 Share on other sites More sharing options...
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