coastaldm611
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I have a 1969 DM611S, ENDTB-673 w/a TRQ-7220 18 speed Quadruplex. (a great old Mack!) In the course of a clutch job, I later discovered the shop had damaged the casting @ the lower, rear driver's side of the block where it receives the 'through-bolt' of the bell housing to the block! This of course has made it unsuitable for rebuilding. As a rebuilt engine - could I use a slightly newer 4-valve Maxidyne engine block and rebuild it as a Thermodyne - and - could I use the set of 4-valve heads in the rebuild? Your thoughts and/or any experience(s) on the matter would be received w/my appreciation and interest. My thx in advance for any insights or advice on the matter. Ed
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Well, sit down and be ready for a shocker - I never actually found out just how the damage occurred, but the dealer ate the labor which was nice I guess, but still charged for the new clutch parts of course and did apologize. So, I bought a couple of cores, a 675 2v & a 676 2v engines to rebuild @ a boneyard for cheap. I'm trying to determine but My original engine was a1969 ENDBT Thermodyne w/a Dynatard engine brake. The Thermodyne still runs well but, is not rebuildable of course, given the broken block mounting point. I am wondering if I can rebuild the either one or both of the 2 cores as a Thermodyne?
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