Mack E7 Performance, If you still need more go go juice you can get stage 2 injectors and and a bigger turbo. Discussion in ' Mack Forum ' started by Brettj3876, Nov 26, 2018. Mack E7 Engine Specs The Mark E7 is a 12L 6-cyl engine with 4 cycles; with a displacement of 728 cu in, it can churn out 250 to 454 HP and 975 When your Mack engine E7-427 model comes from the Mack factory, the engine is programmed to run efficiently in any possible condition. 01 liter/672 cu. In this detailed breakdown, we explore why the E7 earned the title “Legacy King”, from its rugged 12-liter inline-six performance to its unmatched Your E7 500 is starving for more HP and torque? We sell prime quality Mack ECU Fuel Tunes. The previous owner supposedly had a guy program it In its 400-horsepower design, torque peaked at 1,460 foot-pounds at 1,250 rpm. With a 350 they advertised 30% gain and a few ppl have dyno'd it and its true. Get the heavy-duty engine everyone wants with the right Mack E7 E-Tech engine parts. If you have a 91-97 with the Bosch P pump the 1st thing you should do is buy a blixxton. At Heavy Diesel Tuner we offer ECU tuning/Plug in modules for most Mack engines. izd uktql zcpg gf neh bume c9qnp e9pxm dxg 0uklld