Sealed Power Main Bearing Sets

4.45 out of 5 stars 98 Customer Reviews

Today's engines operate under very demanding conditions. When these Sealed Power main bearing sets are used in performance applications, all components are pushed to their limits—and many must be changed to meet these special demands. Federal Mogul, a longtime supplier to both OEM and the aftermarket, has responded to this challenge with its tri-metal, copper-lead, high performance main bearing sets. They're tested in the lab and proven on the track. The bearings are available for various crankshaft undersizes, for direct replacement or performance usage on a wide range of specific applications.

Showing In Stock Items. Show All 11 Items.

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Sealed Power Main Bearing Sets 4663M

Main Bearings, Standard Size, Tri Metal, 1/2 Groove, Chevrolet, Small Block, Set of 5

Part Number: SLP-4663M

4.62 out of 5 stars ( 13 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Sealed Power Main Bearing Sets 4663M 10

Main Bearings, .010 in. Over Size, Tri Metal, 1/2 Groove, Chevrolet, Small Block, Set of 5

Part Number: SLP-4663M10

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Sealed Power Main Bearing Sets 5085M

Main Bearings, Standard Size, Tri Metal, Full Groove, Chevy, V6, 3.3L, 3.8L, 4.3L, Set of 4

Part Number: SLP-5085M

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Sealed Power Main Bearing Sets 4663M 20

Main Bearings, .020 in. Over Size, Tri Metal, 1/2 Groove, Chevrolet, Small Block, Set of 5

Part Number: SLP-4663M20

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Sealed Power Main Bearing Sets 4663M 30

Main Bearings, .030 in. Over Size, Tri Metal, 1/2 Groove, Chevrolet, Small Block, Set of 5

Part Number: SLP-4663M30

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Sealed Power Main Bearing Sets 4663M 1

Main Bearings, .001 in. Over Size, Tri Metal, 1/2 Groove, Chevrolet, Small Block, Set of 5

Part Number: SLP-4663M1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Sealed Power Main Bearing Sets 5085M 10

Main Bearings, 0.010 in. Crankshaft Undersize, Tri Metal, Full Groove, Chevy, V6, 3.3L, 3.8L, 4.3L, Set of 4

Part Number: SLP-5085M10

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Sealed Power Main Bearing Sets 4663M 2

Main Bearings, .002 in. Over Size, Tri Metal, 1/2 Groove, Chevrolet, Small Block, Set of 5

Part Number: SLP-4663M2

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Sealed Power Main Bearing Sets 5085M 1

Main Bearings, 0.001 in. Crankshaft Undersize, Tri Metal, Full Groove, Chevy, V6, 3.3L, 3.8L, 4.3L, Set of 4

Part Number: SLP-5085M1

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Sealed Power Main Bearing Sets 4663M 60

Main Bearings, .060 in. Over Size, Tri Metal, 1/2 Groove, Chevrolet, Small Block, Set of 5

Part Number: SLP-4663M60

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

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