Engines and Components› Crankshafts and Components

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CHEVY 454 MAIN 1PC REAR SEAL COMPETITION STANDARD WEIGHT FORGED ROTATING ASSEMBLY UNBALANCED

$3,400.56

SKU: S01L 1-42460

In Stock
In Stock
Ships by Jun 12
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Professional / shop required

Description

Rotating assembly for Big Block Chevy 454-489 engines. Includes a 4340 Forged Standard Weight Crankshaft (4.250" stroke), Pro Sport H-Beam Connecting Rods (6.385" length with 7/16" Cap Screws), Mahle Forged 18cc Dome Pistons, rings, rod & main bearings. Designed for a 1-piece rear seal. Requires balancing before installation.

Fitment

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Specifications

BrandScat
Part NumberS01L 1-42460

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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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