Engines and Components› Crankshafts and Components

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CHEVY 400 MAIN 2PC REAR SEAL COMPETITION SUPERLIGHT ROTATING ASSEMBLY UNBALANCED

$5,378.34

SKU: S01L 1-40583

In Stock
In Stock
Ships by Jun 9
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

Includes a 4340 Forged Superlight Crankshaft, Ultra Q-Lite H-Beam Connecting Rods (7/16" Cap Screws), Mahle Premium Pistons (forged, -5cc flat top), Rings, Rod & Main Bearings. Designed for Small Block Chevy 400 - 434 engines.

Fitment

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

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Specifications

BrandScat
Part NumberS01L 1-40583

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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