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King Main Bearings for Domestic Vehicles


King Engine Bearings
King Main Bearings for Domestic Vehicles

Product images may differ from actual product appearance.

King offers 3 levels of main bearings for use in OE Stock, High Performance, and Extreme Performance applications. King main bearings are sold in engine sets.



AM-Series & SI-Series Bearings:
King AM-Series & SI-Series bearings are recommended for OE applications. AM-Series bearings are aluminum-copper-tin plus Alloy on high-strength steel (Bi-Metal). SI-Series bearings are Silicon-Aluminum bearings (Bi-Metal) are designed for Aftermarket Gasoline or Diesel Engine Rebuilding & Performance Engines with OE Crankshafts.

HP-Series Bearings:
King HP-Series bearings are recommended for street and strip high performance applications. These Bi-Metal Silicon Aluminum bearings are designed for blown, turbocharged, NOS, and alcohol-fueled engines using aftermarket crankshafts. These bearings have chamfered oil holes are fit aftermarket cranks machined with a large radii at the edge of the journals. Most main bearings in the HP-Series are 3/4 grooved for improved oiling to the rod journals. Ideal for use in High Load, Short Duration Applications like Drag Racing, Tractor Pulling, Monster Trucks, etc.

XP-Series Bearings:
King XP-Series bearings are for extreme performance in high-load capacity applications. These Tri-Metal copper lead bearings are designed use on cranks with large radii (narrow rod bearings) and feature enlarged, chamfered oil holes with 1/2 grooving (on most main bearings) for uncompromised lower bearing load capacity. Ideal for use in High Load Circle Track & Endurance Applications.


What does the King part number Prefix/Suffix mean?




NOTE: The term "Undersize" refers to a thicker bearing which is used when the Crankshaft has been turned down and is now undersized, not the bearing itself. The term "Oversize" is typically a thinner bearing than stock to allow for increased clearance.

Select your application below.

Chevy: Small Block , LS , 400ci , Big Block

Chrysler: 318/340ci , 426 Hemi/440ci

Ford: 289/302ci , 351C , 351W , 4.6L SOHC (Cast Iron Block) , 4.6L SOHC/DOHC (Aluminum Block) , 4.6L/5.4L SOHC Windsor ,
          429/460 Big Block



33 Products Page: 1 2 ... |  Next Results per Page:

429-MB5013XP
Main Bearing Set
  • LS Chevy
  • XP-Series
  • Standard
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  • $159.99
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    429-MB5013XPSTDX
    Main Bearing Set
  • LS Chevy
  • XP-Series
  • .001" Oversize
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  • $159.99
    Order Today Ships 04/28/14

    429-MB5013XP001
    Main Bearing Set
  • LS Chevy
  • XP-Series
  • .001" Undersize
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  • $159.99
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    429-MB5013XP010X
    Main Bearing Set
  • LS Chevy
  • XP-Series
  • .009" Undersize
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  • $159.99
    Order Today Ships 04/28/14

    429-MB5013XP010
    Main Bearing Set
  • LS Chevy
  • XP-Series
  • .010" Undersize
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  • $159.99
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    429-MB5013XP011
    Main Bearing Set
  • LS Chevy
  • XP-Series
  • .011" Undersize
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  • $159.99
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    429-MB5013XP020
    Main Bearing Set
  • LS Chevy
  • XP-Series
  • .020" Undersize
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  • $159.99
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    429-MB5013XP030
    Main Bearing Set
  • LS Chevy
  • XP-Series
  • .030" Undersize
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  • $159.99
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    429-MB558XP
    Main Bearing Set
  • Chrysler 318/340 Small Block
  • XP-Series
  • Standard
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  • $121.99
    Order Today Ships 04/28/14

    429-MB558XPSTDX
    Main Bearing Set
  • Chrysler 318/340 Small Block
  • XP-Series
  • .001" Oversize
    View this item
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  • $121.99
    Order Today Ships 04/28/14

    429-MB558XP001
    Main Bearing Set
  • Chrysler 318/340 Small Block
  • XP-Series
  • .001" Undersize
    View this item
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  • $121.99
    Order Today Ships 04/28/14

    429-MB558XP010X
    Main Bearing Set
  • Chrysler 318/340 Small Block
  • XP-Series
  • .009" Undersize
    View this item
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  • $121.99
    Order Today Ships 04/28/14

    429-MB558XP010
    Main Bearing Set
  • Chrysler 318/340 Small Block
  • XP-Series
  • .010" Undersize
    View this item
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  • $121.99
    Order Today Ships 04/28/14

    429-MB558XP011
    Main Bearing Set
  • Chrysler 318/340 Small Block
  • XP-Series
  • .011" Undersize
    View this item
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  • $121.99
    Order Today Ships 04/28/14

    429-MB558XP020X
    Main Bearing Set
  • Chrysler 318/340 Small Block
  • XP-Series
  • .019" Undersize
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  • $121.99
    Order Today Ships 04/28/14

    429-MB558XP020
    Main Bearing Set
  • Chrysler 318/340 Small Block
  • XP-Series
  • .020" Undersize
    View this item
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  • $121.99
    Order Today Ships 04/28/14

    429-MB558XP021
    Main Bearing Set
  • Chrysler 318/340 Small Block
  • XP-Series
  • .021" Undersize
    View this item
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  • $121.99
    Order Today Ships 04/28/14

    429-MB558XP030
    Main Bearing Set
  • Chrysler 318/340 Small Block
  • XP-Series
  • .030" Undersize
    View this item
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  • $121.99
    Order Today Ships 04/28/14

    429-MB5116HPSTDX
    Main Bearing Set
  • Chrysler 426 Hemi & 413-440ci Big Block
  • HP-Series
  • .001" Oversize
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  • $114.99
    Order Today Ships 04/28/14

    429-MB5116HP001
    Main Bearing Set
  • Chrysler 426 Hemi & 413-440ci Big Block
  • HP-Series
  • .001" Undersize
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  • $114.99
    Order Today Ships 04/28/14

    429-MB5116XP
    Main Bearing Set
  • Chrysler 426 Hemi & 413-440ci Big Block
  • XP-Series
  • Standard
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  • $116.99
    Order Today Ships 04/28/14

    429-MB5116XPSTDX
    Main Bearing Set
  • Chrysler 426 Hemi & 413-440ci Big Block
  • XP-Series
  • .001" Oversize
    View this item
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  • $116.99
    Order Today Ships 04/28/14

    429-MB5116XP001
    Main Bearing Set
  • Chrysler 426 Hemi & 413-440ci Big Block
  • XP-Series
  • .001" Undersize
    View this item
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  • $116.99
    Order Today Ships 04/28/14

    429-MB5116XP010
    Main Bearing Set
  • Chrysler 426 Hemi & 413-440ci Big Block
  • XP-Series
  • .010" Undersize
    View this item
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  • $116.99
    Order Today Ships 04/28/14

    429-MB5353HP
    Main Bearing Set
  • Ford 4.6L SOHC (Single Over-Head Cam) Cast Iron Block
  • HP-Series
  • Standard
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  • $111.99
    Order Today Ships 04/28/14

    429-MB5353HPSTDX
    Main Bearing Set
  • Ford 4.6L SOHC (Single Over-Head Cam) Cast Iron Block
  • HP-Series
  • .001" Oversize
    View this item
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  • $111.99
    Order Today Ships 04/28/14

    429-MB5353HP010
    Main Bearing Set
  • Ford 4.6L SOHC (Single Over-Head Cam) Cast Iron Block
  • HP-Series
  • .010" Undersize
    View this item
    • FREE
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  • $111.99
    Order Today Ships 04/28/14

    429-MB5283HP
    Main Bearing Set
  • Ford 4.6L SOHC/DOHC (Single/Double Over-Head Cam) Aluminum Block
  • HP-Series
  • Standard
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  • $101.99
    Order Today Ships 04/28/14

    429-MB5283HPSTDX
    Main Bearing Set
  • Ford 4.6L SOHC/DOHC (Single/Double Over-Head Cam) Aluminum Block
  • HP-Series
  • .001" Oversize
    View this item
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  • $101.99
    Order Today Ships 04/28/14

    429-MB5283XP
    Main Bearing Set
  • Ford 4.6L SOHC/DOHC (Single/Double Over-Head Cam) Aluminum Block
  • XP-Series
  • Standard
    View this item
    • FREE
    • SHIPPING
      & HANDLING!
  • $101.99
    Order Today Ships 04/28/14

    33 Products Page: 1 2 ... |  Next Results per Page: