King Bearings developed the XP Series, featuring Tri-Metal Copper-lead with a Hardened Overlay. For circle track, drag racing, off-shore, and other applications using steel crankshafts with high load/long duration endurance.

King MB 556XPN BBC XP Series STD Narrow Main Bearings

Set$90.44

King Bearings developed the XP Series, featuring Tri-Metal Copper-lead with a Hardened Overlay. For circle track, drag racing, off-shore, and other applications using steel crankshafts with high load/long duration endurance.

  • Chevy 396-502 GEN IV, V, VI
  • Tri-Metal Copper-lead with a Hardened Overlay
  • Main Bearings are narrower than typical OE for crankshafts with large journal fillet radius
  • Standard Crank Size
SKU: KNG-MB-556XPN Category: Tags: ,
Part NumberDescriptionSize
MB 556XPN
MB556XPN
MB-556-XPN		King Big Block Chevy 396-502 GEN IV, V, VI  XP Series Main Bearings, Race Tri-Metal Copper-Lead Nickel Coating, Narrow for Aftermarket CrankshaftsStandard Size
Weight1.425 lbs
Dimensions6.5 × 4 × 2.2 in

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