CHEVROLET 7.4L/454 King Engine Bearings Main Bearings

Main Bearings, HP-Series, Narrowed, Bi-metal, Silicon Aluminum, 1/2 Groove Style, Stock Size, Chevrolet, Big Block, Set of 5

Part Number: KGB-MB556HPN

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Main Bearings, XP-Series, 1/2 Groove, Tri-Metal, GM, Big Block, Set

Part Number: KGB-MB556XPNC

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Main Bearings, XP-Series, Narrowed, Tri-metal, 1/2 Groove Style, Stock Size, Chevrolet, Big Block, Set of 5

Part Number: KGB-MB556XPNSTDX

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Main Bearings, HP-Series, 1/2 Groove, Bi-Metal, Silicon Aluminum, .001 in. Thinner Size, Chevy, Big Block, Set of 5

Part Number: KGB-MB556HPNSTDX

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Main Bearings,King XP-Series Coated Main Bearings, .010 in., .25 mm Crankshaft Undersize, Tri-Metal, Chevy, Sold as a Set of 5

Part Number: KGB-MB556XPNC010

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Main Bearings, HP Series, 0.010 in. Crankshaft Undersize, Bi-Metal, Silicon Aluminum, Chevrolet, Big Block, Set of 5

Part Number: KGB-MB556HPN010

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Main Bearings, 1/2 Groove, Standard Size, Bi-metal, Silicon Aluminumn, Chevy, Big Block, Set of 5

Part Number: KGB-MB556SI

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Main Bearings,King XP-Series Coated Main Bearings, .001 in., .025 mm Crankshaft Undersize, Tri-Metal, Chevy, Sold as a Set of 5

Part Number: KGB-MB556XPNC001

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Estimated Ship Date: Today

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

Part Number: KGB-MB556SI010

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Main Bearings, HP-Series, Narrowed, Bi-metal, Silicon Aluminum, 1/2 Groove Style, 0.010 in. Crankshaft Undersize, Chevrolet, Big Block, Set of 5

Part Number: KGB-MB556HPN010X

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Estimated Ship Date: Today

Main Bearings, XP-Series, Narrowed, Tri-metal, 1/2 Groove Style, 0.010 in. Crankshaft Undersize, Chevrolet, Big Block, Set of 5

Part Number: KGB-MB556XPN010

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Estimated Ship Date: Today

Main Bearings, HP-Series, Narrowed, Bi-metal, Silicon Aluminum, 1/2 Groove Style, 0.020 in. Crankshaft Undersize, Chevrolet, Big Block, Set of 5

Part Number: KGB-MB556HPN020

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Estimated Ship Date: Today

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

Part Number: KGB-MB556SI020

2.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

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

Part Number: KGB-MB556SI001

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Estimated Ship Date: Today

Main Bearings,King XP-Series Coated Main Bearings, .020 in., .50 mm Crankshaft Undersize, Tri-Metal, Chevy, Sold as a Set of 5

Part Number: KGB-MB556XPNC020

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Estimated Ship Date: Today

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

Part Number: KGB-MB556SI030

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Main Bearings, SI-Series, Silicon Aluminum, 0.020 in. Crankshaft Undersize, Chevy, GMC, Big Block, Set of 5

Part Number: KGB-MB5212SI020

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Estimated Ship Date: Jul 13, 2026 if ordered today

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Main Bearings, XP-Series, Copper/Lead/Nickel, 0.020 in. Undersize, Chevy, Big Block, Set of 5

Part Number: KGB-MB556XP020

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Estimated Ship Date: Jul 13, 2026 if ordered today

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Main Bearings, SI-Series, Silicon Aluminum, 0.010 in. Crankshaft Undersize, Chevy, GMC, Big Block, Set of 5

Part Number: KGB-MB5212SI010

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Estimated Ship Date: Jul 13, 2026 if ordered today

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Main Bearings, Bi-metal, Silicon Aluminum, 1/2 Groove Style, 0.010 in. Undersize, Chevy, Big Block, Set of 5

Part Number: KGB-MB556HP010X

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Main Bearings, HP-Series, 3/4 Groove, .010 in. Undersize, Bi Metal, Chevy, Big Block, Set of 5

Part Number: KGB-MB5164HP010

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Estimated Ship Date: Jul 13, 2026 if ordered today

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Main Bearings, XP-Series, Narrowed, Tri-metal, 1/2 Groove Style, 0.020 in. Crankshaft Undersize, Chevrolet, Big Block, Set of 5

Part Number: KGB-MB556XPN020

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Estimated Ship Date: Jul 14, 2026 if ordered today

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Main Bearings, Bi-metal, Silicon Aluminum, 1/2 Groove Style, 0.020 in. Undersize, Chevy, Big Block, Set of 5

Part Number: KGB-MB556HP020X

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Estimated Ship Date: Jul 13, 2026 if ordered today

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Main Bearing Set, CHEVROLET 369-502 Gen IV, V, VI - pMaxKote

Part Number: KGB-MB556XPC020

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Estimated Ship Date: Jul 13, 2026 if ordered today

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Main Bearings, XP-Series, Copper/Lead/Nickel, 0.020 in. Undersize, Chevy, Big Block, Set of 5

Part Number: KGB-MB556XP020X

Not Yet Reviewed

Estimated Ship Date: Jul 13, 2026 if ordered today

• Drop Ship
• Special Order