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Simple Question?

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I'm sure this is easy for someone: In the 1970's, Mack put a V/8 powerplant in fire trucks. What was the horsepower rating and torque? Thank you.

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In the 70's the V8's availiable were the ENDT865 and ENDT866. The 865 was rated to 325HP and the 866 was rated to 375HP. As for torque I would guesstimate that the 865 had around 1100 foot pounds and the 866 had around 1300 perhaps? They would be hooked to either 5 ot 6 speeds.

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In the 70's the V8's availiable were the ENDT865 and ENDT866. The 865 was rated to 325HP and the 866 was rated to 375HP. As for torque I would guesstimate that the 865 had around 1100 foot pounds and the 866 had around 1300 perhaps? They would be hooked to either 5 ot 6 speeds.

Referencing my 1978 "Chilton" manual for heavy trucks: ENDT 865 1100 ft. lbs @ 1350rpm. ENDT 866 1040 @ 1600rpm.

My ENDT 865 is coupled to a six speed transmission and is a "Maxitorque" series engine. I've never seen an ENDT 866 engine but know a couple of people that have had them. Both of them had 12 speed transmissions behind them.

Rob

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Referencing my 1978 "Chilton" manual for heavy trucks: ENDT 865 1100 ft. lbs @ 1350rpm. ENDT 866 1040 @ 1600rpm.

My ENDT 865 is coupled to a six speed transmission and is a "Maxitorque" series engine. I've never seen an ENDT 866 engine but know a couple of people that have had them. Both of them had 12 speed transmissions behind them.

Rob

Hmmmm. The 866 had a lower torque then the 865? Always thought it was the strongest of the V8's they had at the time. And that was followed by the ENDT 1000 which was later renamed the E9.

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