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Sealed Power

SEALED POWER Main Bearing Set

MPN: 4663m20 Catalog #: 001542149 Category: Main Bearings Check Vehicle Fitment

Product Details

Main Bearing - 0.020 in Undersize - Small Block Chevy - Kit

Vehicle Fitment

Universal or product-specific fitment. Please review the product details and contact us if you need help confirming fitment before ordering.

Engine Compatibility

GM - SBCMatched variant: Small Block Chevy

Small Block Chevy; 265–400ci

Fitment note: Engine compatibility is provided as a guide. Please verify all fitment details before ordering.

Product Specs

Brand
Sealed Power
Part Number
4663m20
Catalog Number
001542149
Product Line
Main Bearings
Category
Engines & Parts
Type
Main Bearings
UPC / Barcode
724956135530
Length
6.50 in
Width
4.05 in
Height
2.30 in
Weight
1.34 lb
Ship Alone
No
Air Restricted
No

Shipping & Availability

Current status 6 Available - Ready to ship
Estimated timing Usually ships within 24hrs

This item is showing available inventory. Most in-stock performance parts ship quickly, but timing can vary by warehouse, vendor cut-off time, holidays, and carrier pickup.

Inventory shown: 6 available as of 6/3/2026.

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