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Mopar

5.7L V8 HEMI Long Block Engine Assembly

$7,535.00 $6,271.50 Save $1,263.50

SKU: 68409357AA

In Stock
In Stock
Ships by Aug 7
Free Shipping over $100
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The Mopar Long Block Engine provides a factory-certified solution for restoring powertrain performance in 2018-2024 Ram 1500 and 1500 Classic models. This assembly is built to original equipment specifications, ensuring full compatibility with your vehicle's engine management systems. Each unit includes the engine block, pistons, crankshaft, and pre-installed cylinder heads for a streamlined installation process. This engine is compatible with 5.7L V8 HEMI MDS VVT engines and specifically supports the 6-speed automatic 65RFE and 8-speed automatic 8HP70 transmissions. A VIN is required during the ordering process to ensure correct compatibility for your specific build. Each purchase includes a transferable 3-year/100,000-mile nationwide powertrain warranty honored by U.S. Stellantis dealerships. The assembly ships directly to your chosen professional installer.

MIA's Description

The Mopar Long Block Engine is a genuine OEM replacement assembly for 5.7L V8 HEMI engines. This unit includes the engine block, rotating assembly, and installed cylinder heads to provide a factory-standard foundation for your powertrain.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandMopar
Part Number68409357AA
CategoryEngines and Components

Buy with Confidence

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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