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Modern Muscle Xtreme is your HEMI education headquarters! With our best-in-class videos, books, manuals, and more, ModernMuscleXtreme.com has what you need to take you from installing our Forged Drop-in Pistons and Rods to installing our Gen III HEMI Performance Camshaft Kits and beyond! Contact one of our HEMI professional sales reps today!

Our MMX HEMI Tech section boasts a plethora of resources to deepen, broaden, and expand your knowledge and understanding of the HEMI platform.

Here at MMX / ModernMuscleXtreme.com we want to spread our wealth of experience with the Gen3 HEMI platform with the world. Whether you are talking about performance HEMI camshaft installs, handheld vehicle tuning basics, or tips and tricks regarding your HEMI powered hotrods performance we will be covering here!
New HEMI Engines - How to ReBuild Your HEMI by Larry Shepard
Long-time Mopar engineer, racing coordinator, and veteran author Larry Shepard delivers thorough instructions for each crucial step of the rebuilding process. Before commencing engine tear down, Shepard shows you how to perform compression and leak down testing to accurately assess the health of the engine. Disassembly and comprehensive inspection instructions are provided so you can determine and remedy any underlying problems.


New HEMI Engines Swaps by Joseph Hinds - May Release
New Hemi Engine Swaps expertly guides you through each crucial step of the engine-swap process so that the swap can be completed on a budget and with minimum hassle. Selecting the right adapter plates and motor mounts for a specific project car is essential, as is choosing or fabricating a transmission crossmember. Mopar sta