Engines and Components› Camshafts and Valvetrain

MMX

6.4L 392 HEMI Max Effort NA Performance Camshaft Kit

$549.95

SKU: MMP-ME-NA

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Overview

The MMX 6.4L 392 VVT HEMI Max Effort NA Performance Camshaft Kit is a performance camshaft designed for the 6.4L HEMI engine to increase power and torque while maintaining a performance idle. This camshaft is compatible with stock 8HP70 and NAG1 torque converters and remains daily-driver friendly.
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The MMX Max Effort NA Performance Camshaft is engineered to provide significant power and torque improvements for 6.4L 392 VVT HEMI engines. With full bolt-ons, this camshaft typically yields gains of 50-65 RWHP over the factory profile. It is the largest camshaft offering from MMX that retains compatibility with both stock 8HP70 and NAG1 torque converters and can support nitrous shot sizes up to 200. Technical specifications include a .614 intake and exhaust lift with a 112 LSA. Proper installation requires specific hardware, including a VVT camshaft phase limiter kit and aftermarket valve springs. Failure to adjust VVT camshaft tables within the engine tune will result in a significant loss of low-speed torque and horsepower. Long tube headers are recommended to achieve optimal performance results. This kit fits 2011-2023 Dodge Charger and Challenger 6.4L, 2011-2023 Chrysler 300 6.4L, 2012-2021 Grand Cherokee SRT 6.4L, and 2018-2026 Durango SRT 6.4L models. Custom tuning is required for proper operation, and users must check local and state laws regarding emissions compliance before purchase.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandMMX
Part NumberMMP-ME-NA
CategoryEngines and Components
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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