Dragster Jim Posted May 11, 2021 Share Posted May 11, 2021 I bought 40hp motor for my AC Mack. It has the twin cylinder jugs. Is this the BC model motor? Also, how much does this engine weigh? It was loaded and unloaded by fork truck. I now need to use an A frame hoist to put it in the chassis. I don't want to overload the hoist. I was told by Mack Truck Historical Museum that this truck was the 2nd to last Model AC built. I would appreciate any info that can be given. Jim Quote Link to comment https://www.bigmacktrucks.com/topic/66687-1931-model-ac-engine-weight/ Share on other sites More sharing options...
paulbrook Posted May 12, 2021 Share Posted May 12, 2021 Weight about 800 lbs tops. Quote Link to comment https://www.bigmacktrucks.com/topic/66687-1931-model-ac-engine-weight/#findComment-473792 Share on other sites More sharing options...
Dragster Jim Posted May 15, 2021 Author Share Posted May 15, 2021 Thank you Paul Quote Link to comment https://www.bigmacktrucks.com/topic/66687-1931-model-ac-engine-weight/#findComment-473908 Share on other sites More sharing options...
mrsmackpaul Posted May 15, 2021 Share Posted May 15, 2021 On 5/13/2021 at 4:54 AM, paulbrook said: Weight about 800 lbs tops. Im not disputing the weight at all as I have never even seen one of these motors and most likely never would, I just imagined it would of been heavier given the era it was made, Macks were obviously fairly advanced even back then Learning new things every day, thank you Paul Quote Link to comment https://www.bigmacktrucks.com/topic/66687-1931-model-ac-engine-weight/#findComment-473913 Share on other sites More sharing options...
ekennedy21 Posted May 16, 2021 Share Posted May 16, 2021 4 hours ago, mrsmackpaul said: Im not disputing the weight at all as I have never even seen one of these motors and most likely never would, I just imagined it would of been heavier given the era it was made, Macks were obviously fairly advanced even back then Learning new things every day, thank you Paul While I can't say I have weighed one, The block is aluminum. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/66687-1931-model-ac-engine-weight/#findComment-473930 Share on other sites More sharing options...
paulbrook Posted May 16, 2021 Share Posted May 16, 2021 I have one out of a truck and on a stand right now. Very happy to run it around to the place next door on a forklift and pop it on their scales! But seriously, there is less heavy iron on it than most motors as someone has already said. I am not saying that you will not need a sturdy hoist, but it is definitely not in the same category as a Hercules diesel out of a Diamond T (which we put in a truck recently) Now that really was heavy!!! 2 Quote Link to comment https://www.bigmacktrucks.com/topic/66687-1931-model-ac-engine-weight/#findComment-473944 Share on other sites More sharing options...
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