Clevite P-Series Main Bearing Set

These are not to be confused with the standard passenger car and light truck parts for the same retention applications which also have a “P” suffix letter. These high performance parts have unique core part numbers different from the standard parts for the same application. P series parts are the oldest series of Clevite high performance bearings. The rod bearings in this series typically have the greatest amount of eccentricity. Most rod bearings are available either with or without dowel holes for use in aluminum rods. Most P series main sets are full grooved to maximize oil flow to the rod bearings. Both rods and mains have high crush for maximum retention, and a reduced overlay thickness to prevent overlay fatigue, sometimes referred to as hen tracking.

High crush for better seating and retention. High eccentricity accommodates rod bore distortion. Hardened steel backing for greater strength. Strong, extra-thin overlay to withstand high loading and resist flaking. Grooved lower mains maintain 360 degree oiling. Rod bearings use a hardened steel back for added strength and resistance to fretting. Extra clearance rod bearings are available for .001” additional clearance and select fitting. Use the P series rods where extremely high RPM’s cause severe rod bore close-in. This is typically indicated by nearly full parting line to parting line shaft contact with bearings having less eccentricity. Use P series mains where higher eccentricity is desired to narrow bearing contact patterns and to provide increased oiling to rod earings. Rod bearing oil starvation is typically indicated by polishing and smearing of the bearing surface, possibly accompanied by discoloration predominantly concentrated at the axial center of the bearings.

325 CID (5.3L) Vortec 5300 Chevrolet V8 Cyl (2005-2007)
3.780in./96mm x 3.622in./92mm

294 CID (4.8L) Vortec 4800 LR4 Chevrolet V8 Cyl (1999-2007)
3.780in./96mm x 3.268in./83mm

325 CID (5.3L) Vortec 5300 Chevrolet V8 Cyl (1999-2007)
3.780in./96mm x 3.622in./92mm

325 CID (5.3L) Vortec 5300 L59 Chevrolet Flex V8 Cyl (2002-2007)
3.780in./96mm x 3.622in./92mm

346 CID (5.7L) LS1 Chevrolet V8 Cyl (1997-2004)
3.898in./99mm x 3.622in./92mm

346 CID (5.7L) LS6 Chevrolet V8 Cyl (2001-2005)
3.898in./99mm x 3.622in./92mm

365 CID (6.0L) 6000 LS2 Chevrolet V8 Cyl (2005-2007)
4.000in./101.6mm x 3.622in./92mm

365 CID (6.0L) Vortec 6000 Chevrolet V8 Cyl (1999-2007)
4.000in./101.6mm x 3.622in./92mm

365 CID (6.0L) Vortec 6000 LQ4 (KL5) Chevrolet CNG V8 Cyl (2001-2007)
4.000in./101.6mm x 3.622in./92mm

365 CID (6.0L) Vortec 6000 LQ4 (KL6) Chevrolet Bi-fuel Gas/CNG V8 Cyl (2002-2007)
4.000in./101.6mm x 3.622in./92mm

365 CID (6.0L) Vortec 6000 Chevrolet V8 Cyl (2002-2005)
4.000in./101.6mm x 3.622in./92mm

325 CID (5.3L) Vortec 5300 Chevrolet V8 Cyl (2003-2004)
3.780in./96mm x 3.622in./92mm

365 CID (6.0L) Vortec 6000 Chevrolet V8 Cyl (2004-2007)
4.000in./101.6mm x 3.622in./92mm