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Unpublished Item

JEGS Performance Products 25070

Performance Main Bearing Set Small Block Chevy LS Gen III/IV

JEGS Performance Products 25070

555-25070

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JEGS Performance Products 25070 Performance Main Bearing Set Small Block Chevy LS Gen III/IV $54.99
Performance Main Bearing Set
  • Small Block Chevy LS Gen III/IV
  • Standard Size

  • Specifications:

    Bearing Usage
    Performance
    Groove Location
    Upper
    Grooved Bearing
    Yes
    Crank Undersize (in.)
    Stock
    Engine Family
    LS Gen III/IV
    Engine Make
    Chevy
    Engine Size
    LS-Series
    Material
    Bi-metal, silicon aluminum

    Traditional bearings have three layers: steel, copper-lead, and thin babbitt overlay (only 0.0005" to 0.0008"). JEGS Main Bearings in a Performance or High-Performance series have two layers: high-strength steel and bonded silicon, tin, and copper in an aluminum matrix (0.015" thick). Because an alloy, properties are maintained through its entire depth to deliver consistent, reliable output. Additionally, micro-fine machined High-Performance Bearings have chamfered oil holes and offer a copper-lead version for Chevy Gen III/IV LS Engines only. Bearings are sold in sets for Chevy and Ford applications.

    High Load Capacity
    Aluminum silicon bearings withstand the stress of high-performance engines. JEGS Bearings are made from the same metallurgical alloy so cars that have standard bearings benefit from this alloy used in race engines.

    Temperature Resistance
    This alloy's melting/fatigue point is 450°+ F (100° more than the thin babbitt overlay of tri-metal bearings). This means extra protection against localized overheating due to misalignment, detonation, overloading, loss of coolant, etc.

    Particle Embedability
    More than half of engine bearing failure is caused by metallic particles that scratch crank journals and weaken or tear thin bearing overlays. Because aluminum silicon overlay is much thicker than babbitt in tri-metal bearings (0.015" vs. 0.0008"), it provides 18 times more embedability to trap particles to prevent crank journal scratches. This is especially true for particles over 0.0004", which cause most of the damage.

    Conformability
    The thicker aluminum silicon layer allows bearings to better conform to problems, such as metal-to-metal contact due to misalignment. Greater conformability also means fewer bearing failures.

    Control of Wall Tolerance
    Bearing-to-journal clearance is affected by several factors. We've alleviated concerns about inconsistent shell-to-shell bearing wall thickness by using statistical control methods to minimize wall thickness variation. JEGS Engine Bearing thickness varies no more than 0.00010". Other manufacturers produce bearings with wall thickness at the crown that varies as much as 0.00025".

    Does JEGS Performance Products 25070 fit your vehicle?

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    • EngineType: V8 ( 6.0 L / 364 )

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    1999 CHEVROLET C1500 SUBURBAN

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    • EngineType: V8 ( 5.7 L / 350 )

    2009-2011 CHEVROLET EXPRESS 4500

    • CC: 5967
    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2007 GMC SIERRA 1500 CLASSIC

    • CC: 5967
    • Liter: 6.0
    • SubModel: CLASSIC SLE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2007-2009 GMC SIERRA 3500

    • Liter: 6.0
    • SubModel: SLE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2000-2002 CHEVROLET EXPRESS 2500

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2009 CHEVROLET SUBURBAN 2500

    • EngineType: ALL
    • SubModel: LT

    2009-2010 CADILLAC ESCALADE EXT

    • CC: 6199
    • Liter: 6.2
    • SubModel: BASE
    • CUI: 376
    • EngineType: V8 ( 6.2 L / 376 )

    2011-2013 GMC SIERRA 3500 HD

    • CC: 5967
    • Liter: 6.0
    • SubModel: SLE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2013 CHEVROLET CORVETTE

    • EngineType: ALL
    • SubModel: 427

    1998 CHEVROLET CAMARO

    • Liter: 5.7
    • SubModel: Z28 SS
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2010 CADILLAC ESCALADE ESV

    • CC: 6199
    • Liter: 6.2
    • SubModel: PLATINUM
    • CUI: 376
    • EngineType: V8 ( 6.2 L / 376 )

    2003-2013 GMC SAVANA 2500

    • CC: 5967
    • Liter: 6.0
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    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2003 CHEVROLET SILVERADO 1500

    • CC: 5967
    • Liter: 6.0
    • SubModel: SS
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2009-2012 GMC SAVANA 4500

    • CC: 5967
    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    1998 CHEVROLET C1500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2007 GMC SIERRA 2500 HD CLASSIC

    • Liter: 6.0
    • SubModel: SLE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    1999-2000 GMC SIERRA 2500

    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    1998-2000 CHEVROLET EXPRESS 1500

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2001-2002 GMC SAVANA 2500

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2010 CHEVROLET SILVERADO 3500

    • CC: 5967
    • Liter: 6.0
    • SubModel: LT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    1998-2000 CHEVROLET C3500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2012-2013 GMC SAVANA 3500

    • CC: 5967
    • Liter: 6.0
    • SubModel: SLE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2008 CHEVROLET TAHOE

    • CC: 6162
    • Liter: 6.2
    • SubModel: LTZ
    • CUI: 376
    • EngineType: V8 ( 6.2 L / 376 )

    2006-2013 GMC SIERRA 2500 HD

    • CC: 5967
    • Liter: 6.0
    • SubModel: SLT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2007 GMC SIERRA 3500 CLASSIC

    • Liter: 6.0
    • SubModel: SL
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    1998-2001 GMC MOTORHOME

    • EngineType: ALL
    • SubModel: CLASS A; P-32

    1998-2002 CHEVROLET MOTORHOME

    • Liter: 5.7
    • SubModel: CLASS A; P-30
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2007-2013 GMC YUKON XL 2500

    • EngineType: ALL
    • SubModel: ALL

    2001 GMC SIERRA C3

    • EngineType: ALL
    • SubModel: ALL

    2011-2013 GMC SIERRA 3500 HD

    • CC: 5967
    • Liter: 6.0
    • SubModel: SLT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2006 GMC SIERRA 3500

    • CC: 5967
    • Liter: 6.0
    • SubModel: SLT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2002-2005 GMC SIERRA 3500

    • CC: 5967
    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2007-2009 CHEVROLET SUBURBAN 1500

    • CC: 5967
    • Liter: 6.0
    • SubModel: LT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2000-2006 GMC YUKON

    • EngineType: ALL
    • SubModel: DENALI

    1998-2002 GMC SAVANA 1500

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2001 CHEVROLET EXPRESS 3500

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2004 CHEVROLET EXPRESS 2500

    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2007 CHEVROLET SILVERADO 1500 HD CLASSIC

    • EngineType: ALL
    • SubModel: ALL

    2009-2010 GMC SAVANA 3500

    • EngineType: ALL
    • SubModel: SLE

    2011 CADILLAC ESCALADE ESV

    • CC: 6199
    • Liter: 6.2
    • SubModel: BASE
    • CUI: 376
    • EngineType: V8 ( 6.2 L / 376 )

    2007 CHEVROLET SILVERADO 2500 HD CLASSIC

    • Liter: 6.0
    • SubModel: LT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2006 CHEVROLET SILVERADO 2500 HD

    • CC: 5967
    • Liter: 6.0
    • SubModel: LS
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2006-2013 CHEVROLET SILVERADO 2500 HD

    • CC: 5967
    • Liter: 6.0
    • SubModel: WT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2011-2013 CHEVROLET EXPRESS 2500

    • CC: 5967
    • Liter: 6.0
    • SubModel: LT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2001 GMC SIERRA 2500 HD

    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2001 GMC SIERRA 3500

    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2013 CADILLAC ESCALADE ESV

    • CC: 6199
    • Liter: 6.2
    • SubModel: BASE
    • CUI: 376
    • EngineType: V8 ( 6.2 L / 376 )

    2008 CHEVROLET CORVETTE

    • EngineType: ALL
    • SubModel: 427 LIMITED EDITION Z06

    2007 CHEVROLET SILVERADO 2500 HD CLASSIC

    • Liter: 6.0
    • SubModel: WT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2012 CHEVROLET CAMARO

    • CC: 6162
    • Liter: 6.2
    • Aspiration: N
    • SubModel: SS
    • Engine Vin: J
    • CUI: 376
    • EngineType: V8 ( 6.2 L / 376 )

    2007-2009 GMC YUKON XL 1500

    • CC: 5967
    • Liter: 6.0
    • SubModel: SLT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    1999 GMC C1500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA SL
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2009-2010 GMC SAVANA 2500

    • EngineType: ALL
    • SubModel: SLE

    2011-2013 CHEVROLET EXPRESS 3500

    • CC: 5967
    • Liter: 6.0
    • SubModel: LS
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2013 CHEVROLET CORVETTE

    • EngineType: ALL
    • SubModel: BASE

    2009-2012 CHEVROLET CORVETTE

    • EngineType: ALL
    • SubModel: ZR-1

    2001-2002 GMC SAVANA 2500

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2005-2007 CHEVROLET CORVETTE

    • CC: 5967
    • Liter: 6.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: U
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2006-2010 CHEVROLET EXPRESS 3500

    • EngineType: ALL
    • SubModel: LT

    2001-2003 GMC SIERRA 1500 HD

    • EngineType: ALL
    • SubModel: SLE

    1999 CHEVROLET K1500 PICKUP

    • Liter: 5.7
    • SubModel: LS
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2007-2008 CADILLAC ESCALADE EXT

    • CC: 6199
    • Liter: 6.2
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: 8
    • CUI: 378
    • EngineType: V8 ( 6.2 L / 378 )

    1999 CHEVROLET EXPRESS 2500

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2005 CHEVROLET SILVERADO 1500

    • CC: 5967
    • Liter: 6.0
    • SubModel: LS
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2005 CHEVROLET SILVERADO 1500

    • CC: 5967
    • Liter: 6.0
    • Aspiration: N
    • SubModel: SS
    • Engine Vin: N
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2007 CHEVROLET SILVERADO 3500 CLASSIC

    • Liter: 6.0
    • SubModel: LS
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2007 CHEVROLET SILVERADO 3500 CLASSIC

    • Liter: 6.0
    • SubModel: LT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    1998-2002 GMC SAVANA 3500

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2005-2006 GMC SIERRA 1500 HD

    • EngineType: ALL
    • SubModel: ALL

    2006-2011 GMC SAVANA 3500

    • EngineType: ALL
    • SubModel: LT

    2009 CHEVROLET SUBURBAN 2500

    • EngineType: ALL
    • SubModel: LS

    1998-2000 CHEVROLET K3500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1998 GMC C2500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2005 CHEVROLET SILVERADO 1500 HD

    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2012-2013 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: ZL1

    1998-2000 GMC C3500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1998-2000 GMC MOTORHOME

    • Liter: 5.7
    • SubModel: CLASS A; P-30
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2009-2013 GMC SIERRA 1500

    • CC: 6199
    • Liter: 6.2
    • SubModel: SLT
    • CUI: 376
    • EngineType: V8 ( 6.2 L / 376 )

    2006 CHEVROLET SILVERADO 1500

    • EngineType: ALL
    • SubModel: SS

    1998-2002 PONTIAC FIREBIRD TRANS AM

    • EngineType: ALL
    • SubModel: ALL

    2008-2013 GMC YUKON

    • EngineType: ALL
    • SubModel: HYBRID

    2007 CHEVROLET SILVERADO 1500 CLASSIC

    • CC: 5967
    • Liter: 6.0
    • SubModel: CLASSIC LT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2012-2013 GMC SAVANA 3500

    • CC: 5967
    • Liter: 6.0
    • SubModel: LS
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2006-2009 CHEVROLET SILVERADO 1500

    • CC: 5967
    • Liter: 6.0
    • SubModel: LT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2002-2006 CADILLAC ESCALADE EXT

    • CC: 5967
    • Liter: 6.0
    • SubModel: BASE
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2006-2013 CHEVROLET SILVERADO 2500 HD

    • CC: 5967
    • Liter: 6.0
    • SubModel: LT
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    1998-1999 CHEVROLET C2500 SUBURBAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )
    25070 - JEGS Main Bearings is rated 5.0 out of 5 by 1.
    • 2016-12-03T08:36CST
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    Rated 5 out of 5 by from Great pricing, great product Fit and finish are second to none, great product!!
    Date published: 2016-04-21
    • 2016-12-03T08:36CST
    • bvseo_cps, prod_bvrr, vn_cps_3.4.0
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_1
    • loc_en_US, sid_10001_10001_2325192, PRD, sort_relevancy
    • clientName_jegs
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