Summit Racing™ Main Bearings

4.82 out of 5 stars 96 Customer Reviews

These Summit Racing™ main bearings are just what you need to freshen up your engine. Why? They use silicon aluminum bi-metal construction. Silicon aluminum is the choice for many of today's engine manufacturers because of its high fatigue strength and superior temperature threshold. Bearing wear is dramatically reduced and the fatigue strength is greatly improved.

Results 1 - 13 of 13

Summit Racing™ SBC Main Bearings SUM-172000

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

Part Number: SUM-172000

4.89 out of 5 stars ( 37 )

Estimated Ship Date: Today

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Summit Racing™ BBC Main Bearings SUM-172200

Main Bearings, 1/2 Groove, Standard Size, Bi Metal, Silicon Aluminum, Chevy, Big Block, Set of 5

Part Number: SUM-172200

4.69 out of 5 stars ( 13 )

Estimated Ship Date: Today

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Summit Racing™ SBC Main Bearings SUM-172010

Main Bearings, 1/2 Groove, .010 in. Crankshaft Undersize, Bi Metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: SUM-172010

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Today

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Summit Racing™ SBF 221, 260, 286, 302 Main Bearings SUM-172100

Main Bearings, 1/2 Groove, Standard Size, Bi Metal, Silicon Aluminum, Ford, 221-302, Set of 5

Part Number: SUM-172100

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Summit Racing™ SBC Main Bearings SUM-172020

Main Bearings, 1/2 Groove, .020 in. Crankshaft Undersize, Bi Metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: SUM-172020

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Summit Racing™ BBC Main Bearings SUM-172210

Main Bearings, 1/2 Groove, .010 in. Crankshaft Undersize, Bi Metal, Silicon Aluminum, Chevy, Big Block, Set of 5

Part Number: SUM-172210

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Summit Racing™ BBC Main Bearings SUM-172220

Main Bearings, 1/2 Groove, .020 in. Crankshaft Undersize, Bi Metal, Silicon Aluminum, Chevy, Big Block, Set of 5

Part Number: SUM-172220

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Summit Racing™ SBF 221, 260, 286, 302 Main Bearings SUM-172120

Main Bearings, 1/2 Groove, .020 in. Crankshaft Undersize, Bi Metal, Silicon Aluminum, Ford, 221-302, Set of 5

Part Number: SUM-172120

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Summit Racing™ SBC Main Bearings SUM-172030

Main Bearings, 1/2 Groove, .030 in. Crankshaft Undersize, Bi Metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: SUM-172030

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Sealed Power Main Bearing Sets 4663M 30

Not Yet Reviewed

Estimated Ship Date: Today

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Summit Racing™ SBF 221, 260, 286, 302 Main Bearings SUM-172110

Main Bearings, 1/2 Groove, .010 in. Crankshaft Undersize, Bi Metal, Silicon Aluminum, Ford, 221-302, Set of 5

Part Number: SUM-172110

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Summit Racing™ SBC Main Bearings SUM-172001

Main Bearings, 1/2 Groove, .001 in. Crankshaft Undersize, Bi Metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: SUM-172001

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

King XP-Series Main Bearings MB 557XP 001

1 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Summit Racing™ BBC Main Bearings SUM-172230

Main Bearings, 1/2 Groove, .030 in. Crankshaft Undersize, Bi Metal, Silicon Aluminum, Chevy, Big Block, Set of 5

Part Number: SUM-172230

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Summit Racing™ SBF 221, 260, 286, 302 Main Bearings SUM-172130

Main Bearings, 1/2 Groove, .030 in. Crankshaft Undersize, Bi Metal, Silicon Aluminum, Ford, 221-302, Set of 5

Part Number: SUM-172130

Not Yet Reviewed

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