Engines and Components› Engine Bearings

SEALED POWER

MAIN BEARING SET

$156.86

SKU: S03T 994M 30

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Sealed Power 994M 30 is an engine crankshaft main bearing set designed for optimal engine performance and longevity. This set features a steel-backed bronze alloy lining with overplate, making it popular for fatigue resistance and strength. It provides the conformability required for older applications.

The main bearing set is specifically manufactured for Chevrolet small block engines with 283 and 327 cubic inch displacements. It is intended as an OE (Original Equipment) replacement.

Fitment

Fitment Guaranteed

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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

BrandSEALED POWER
Part NumberS03T 994M 30

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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