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Clevite P-Series Small Block Chevy 400 Main Bearings

SAME DAY SHIPPING! Order within the next 11 hours 33 minutes and receive same day shipping

Clevite P-Series Small Block Chevy 400 Main Bearings

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Not to be confused with standard "passenger" car bearings, Clevite's P-Series is their oldest line of premium high performance bearings. These sets are specifically for 400 c.i. Small Block Chevy V-8 engines (1970-1980).

  • Use P-Series rod bearings where extremely high RPM’s cause severe rod bore close-in.
  • Use P-Series main bearings where higher eccentricity is desired to narrow bearing contact patterns and to provide increased oiling to rod bearings.

P-Series Features (Link)

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Clevite H-Series Chevy 400 Main Bearings
(Part #757M1038H)
                        Clevite's H-Series was developed primarily for use in NASCAR type racing, but  they are suitable for all types of competition engines. These sets are for 1970-1980 S/B Chevy 400 c.i. V-8 engines.   
  • Use H-series bearings with crankshafts that have oversize fillets and where engines run in the medium to high RPM range.
  • H-Series bearings should be used if contact patterns obtained with P-series parts are too narrow. Contact pattern should ideally cover 2/3 to 3/4 of the bearing surface.
  • The X001 option has .001" more bearing/oil clearance
  • If you aren't sure which type of performance bearing to start with, the H-Series will be your best choice.

H-Series Features (Link)

King XP Series Chevy 400 Main Bearings
(Part #910509XP)
                        
  • Enhanced tri-metal copper lead construction with nickel barrier and SecureBond adhesion 
  • Unique SecureBond adhesion process for superior stability between the top and intermediate layers
  • 15% - 30% greater load capacity than traditional bearings
  • Mains and rods are narrowed for large radius crankshafts
  • Greater rod bearing height improves bearing-to-bore contact/heat transfer and reduces spin potential at high RPM
  • 0.0005" metallurgically enhanced and hardened performance overlay withstands greater loads and better resists surface fatigue
  • Mains are 1/2 grooved for uncompromised lower shell load capacity

Item Details

400 Journal
King HP Series Chevy 400 Main Bearings
(Part #910509HP)
                        
  • Bi-metal aluminum silicon alloy featuring fine micro-bore finish
  • Mains and rods are narrowed for large radius crankshafts
  • Mains are 3/4 grooved for improved oiling to the rod journals
  • Greater rod bearing height improves bearing-to-bore contact/heat transfer and reduces spin potential at high RPM
  • 0.015" thick top layer for superior macro particle embedability and conformability
  • 40 Vickers hardness to resist overlay migration and extrusion
  • 450°F heat threshold for superior protection against friction and overheating

Item Details

S/B Chevy Large Journal 400 - 2.100" Rods
Clevite 400 Chevy P Series Large Journal Rod Bearing, Standard
(Part #757R324-STD)
                        

Not to be confused with standard "passenger" car bearings, Clevite's P-Series is their oldest line of premium high performance bearings. These sets are specifically for small block Chevy large journal V-8 engines.

  • Use P-Series rod bearings where extremely high RPM’s cause severe rod bore close-in.
  • Large Journal
  • Use P-Series main bearings where higher eccentricity is desired to narrow bearing contact patterns and to provide increased oiling to rod bearings.

P-Series Features (Link)

Clevite Engine Parts SH290S P-Series Small Block Chevy Cam Bearings
(Part #757CH8)
                        

Not to be confused with standard "passenger" car bearings, Clevites P-Series is their oldest line of premium high performance bearings.

  • Use P-Series rod bearings where extremely high RPM’s cause severe rod bore close-in.
  • Use P-Series main bearings where higher eccentricity is desired to narrow bearing contact patterns and to provide increased oiling to rod bearings.

P-Series Features (Link)

Item Details

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