Free Shipping & Handling on Orders Over $95 - Order by 11pm EST for Same-Day Shipping!
0
My Cart
$0.00
Shop By
Category
All Categories

Rebates
Gift Certificates
My Account
Help
Unpublished Item

JEGS Performance Products 25070

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



JEGS Performance Products 25070

Part Number: 555-25070

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

    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?

    Narrow Results
    Filter By
    Year
    Filter By
    Make
    Filter By
    Model
    Filter By
    SubModel
    Filter By
    EngineType
    Filter By
    CC
    Filter By
    Liter
    Filter By
    Aspiration

    2010-2011 CHEVROLET CORVETTE

    • CC: 6162
    • Liter: 6.2
    • SubModel: BASE
    • CUI: 376
    • EngineType: V8

    2009-2010 CADILLAC ESCALADE ESV

    • CC: 6199
    • Liter: 6.2
    • SubModel: BASE
    • CUI: 376
    • EngineType: V8

    2000-2006 GMC YUKON

    • EngineType: ALL
    • SubModel: DENALI

    1998-1999 CHEVROLET K2500 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    2013 CADILLAC ESCALADE (CANADIAN)

    • EngineType: ALL
    • SubModel: ALL

    2011-2013 CADILLAC ESCALADE EXT

    • EngineType: ALL
    • SubModel: PREMIUM

    2011-2013 CADILLAC ESCALADE ESV

    • CC: 6199
    • Liter: 6.2
    • SubModel: BASE
    • EngineType: V8

    2008 GMC YUKON

    • CC: 6162
    • Liter: 6.2
    • SubModel: DENALI
    • EngineType: V8

    1998-2002 PONTIAC FIREBIRD TRANS AM

    • EngineType: ALL
    • SubModel: ALL

    2011 CHEVROLET CAPRICE

    • EngineType: ALL
    • SubModel: ALL

    2011-2013 CADILLAC ESCALADE EXT

    • EngineType: ALL
    • SubModel: LUXURY

    2007 CHEVROLET SILVERADO 1500 CLASSIC

    • EngineType: ALL
    • SubModel: CLASSIC SS

    2005 CHEVROLET SILVERADO 1500

    • Liter: 6.0
    • SubModel: SS
    • CUI: 364
    • EngineType: V8

    1998-1999 CHEVROLET C2500 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1998-2002 CHEVROLET MOTORHOME

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

    2009 PONTIAC G8

    • EngineType: ALL
    • SubModel: GXP

    2002-2011 GMC SIERRA 1500

    • EngineType: ALL
    • SubModel: DENALI

    2012 CHEVROLET CORVETTE

    • CC: 6162
    • Liter: 6.2
    • SubModel: BASE
    • EngineType: V8

    2007-2010 CHEVROLET SILVERADO 3500

    • Liter: 6.0
    • EngineType: V8
    • SubModel: LTZ

    2007 GMC SIERRA 3500 CLASSIC

    • Liter: 6.0
    • EngineType: V8
    • SubModel: SLT

    2003-2004 CHEVROLET SILVERADO 2500

    • Liter: 6.0
    • EngineType: V8
    • SubModel: BASE

    1999-2000 CADILLAC ESCALADE

    • EngineType: ALL
    • SubModel: ALL

    1998 CHEVROLET EXPRESS 2500

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    2010-2012 GMC YUKON XL 1500

    • CC: 6199
    • Liter: 6.2
    • SubModel: SLT
    • EngineType: V8

    2007 GMC SIERRA 2500 HD CLASSIC

    • Liter: 6.0
    • EngineType: V8
    • SubModel: SLT

    2010 GMC YUKON

    • CC: 6199
    • Liter: 6.2
    • SubModel: DENALI
    • EngineType: V8

    2013 CHEVROLET CORVETTE

    • EngineType: ALL
    • SubModel: BASE

    2011-2013 CADILLAC ESCALADE ESV

    • EngineType: ALL
    • SubModel: LUXURY

    2011-2013 CADILLAC ESCALADE

    • EngineType: ALL
    • SubModel: PREMIUM

    2008-2013 GMC YUKON

    • EngineType: ALL
    • SubModel: HYBRID

    2001-2005 CHEVROLET SILVERADO 2500 HD

    • Liter: 6.0
    • EngineType: V8
    • SubModel: BASE

    2012-2013 GMC SAVANA 3500

    • Liter: 6.0
    • EngineType: V8
    • SubModel: LS

    2011-2013 CADILLAC ESCALADE EXT

    • CC: 6199
    • Liter: 6.2
    • SubModel: BASE
    • EngineType: V8

    2007-2008 CHEVROLET SUBURBAN 2500

    • EngineType: ALL
    • SubModel: ALL

    2008-2009 CADILLAC ESCALADE ESV

    • EngineType: ALL
    • SubModel: PLATINUM

    1998-2001 GMC MOTORHOME

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

    2012-2013 GMC SAVANA 2500

    • Liter: 6.0
    • EngineType: V8
    • SubModel: LS

    2007 CHEVROLET SILVERADO 3500 CLASSIC

    • Liter: 6.0
    • EngineType: V8
    • SubModel: WT

    1998 CHEVROLET C1500 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    2013 CHEVROLET CORVETTE

    • CC: 6162
    • Liter: 6.2
    • SubModel: ZR1
    • EngineType: V8

    2009 CHEVROLET SUBURBAN 2500

    • EngineType: ALL
    • SubModel: LS

    1999-2000 GMC C2500 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    2005 CHEVROLET SILVERADO 1500

    • CC: 5967
    • Liter: 6.0
    • SubModel: LT
    • CUI: 364
    • EngineType: V8

    2008-2010 CHEVROLET EXPRESS 2500

    • EngineType: ALL
    • SubModel: LS

    2005-2006 CHEVROLET SUBURBAN 2500

    • Liter: 6.0
    • EngineType: V8
    • SubModel: LS

    2007-2009 CHEVROLET SUBURBAN 1500

    • Liter: 6.0
    • EngineType: V8
    • SubModel: LT

    2008 GMC SAVANA 2500

    • Liter: 6.0
    • SubModel: LT
    • CUI: 364
    • EngineType: V8

    2010-2011 CHEVROLET CAMARO

    • CC: 6162
    • Liter: 6.2
    • Aspiration: N
    • SubModel: SS
    • Engine Vin: W
    • CUI: 376
    • EngineType: V8

    2004-2005 CHEVROLET SILVERADO 1500

    • Liter: 6.0
    • EngineType: V8
    • SubModel: LS

    1998 CHEVROLET C1500 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    2007 CHEVROLET SILVERADO 3500 CLASSIC

    • Liter: 6.0
    • EngineType: V8
    • SubModel: LT

    1998 GMC C2500 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SIERRA XC

    2001-2004 GMC SIERRA 2500

    • EngineType: ALL
    • SubModel: BASE

    2005-2007 CHEVROLET CORVETTE

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

    2007 GMC SIERRA 1500

    • EngineType: ALL
    • SubModel: CLASSIC DENALI

    2007 CHEVROLET SILVERADO 3500 CLASSIC

    • Liter: 6.0
    • EngineType: V8
    • SubModel: LS

    2001-2005 GMC SIERRA 2500 HD

    • Liter: 6.0
    • EngineType: V8
    • SubModel: BASE

    2005-2006 GMC SIERRA 1500 HD

    • EngineType: ALL
    • SubModel: ALL

    2013 GMC YUKON XL 1500

    • Liter: 6.2
    • EngineType: V8
    • SubModel: SLT

    2011-2013 CHEVROLET EXPRESS 3500

    • Liter: 6.0
    • EngineType: V8
    • SubModel: LT

    2006-2009 GMC SIERRA 1500

    • Liter: 6.0
    • EngineType: V8
    • SubModel: SLT

    1998-2004 CHEVROLET CORVETTE

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: G
    • CUI: 350
    • EngineType: V8

    2012-2013 GMC SAVANA 2500

    • Liter: 6.0
    • EngineType: V8
    • SubModel: LT

    2011-2013 GMC SIERRA 2500 HD

    • Liter: 6.0
    • EngineType: V8
    • SubModel: DENALI

    2007-2009 CHEVROLET AVALANCHE

    • Liter: 6.0
    • EngineType: V8
    • SubModel: LT

    2006-2013 GMC SIERRA 2500 HD

    • Liter: 6.0
    • EngineType: V8
    • SubModel: SLT

    1998-2002 GMC SAVANA 3500

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1998 CHEVROLET CAMARO

    • Liter: 5.7
    • SubModel: Z28
    • CUI: 350
    • EngineType: V8

    2006 GMC SIERRA 3500

    • Liter: 6.0
    • EngineType: V8
    • SubModel: SL

    2006-2010 CHEVROLET SILVERADO 3500

    • Liter: 6.0
    • EngineType: V8
    • SubModel: LT

    2001-2003 GMC SIERRA 1500 HD

    • EngineType: ALL
    • SubModel: SLE

    2002-2004 CHEVROLET SUBURBAN 2500

    • Liter: 6.0
    • EngineType: V8
    • SubModel: BASE

    1998 GMC C2500 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SIERRA

    1998-2002 CHEVROLET C5500 KODIAK

    • EngineType: ALL
    • SubModel: ALL

    2007 GMC SIERRA 3500 CLASSIC

    • Liter: 6.0
    • EngineType: V8
    • SubModel: SLE

    2010 CHEVROLET CORVETTE (CANADIAN)

    • EngineType: ALL
    • SubModel: ALL

    2013 GMC SIERRA 1500

    • Liter: 6.2
    • EngineType: V8
    • SubModel: SLT

    2011-2013 CHEVROLET SILVERADO 3500 HD

    • Liter: 6.0
    • EngineType: V8
    • SubModel: WT

    2009 CHEVROLET SUBURBAN 2500

    • EngineType: ALL
    • SubModel: LT

    2008-2009 PONTIAC G8

    • EngineType: ALL
    • SubModel: GT

    2001-2004 CHEVROLET CORVETTE

    • EngineType: ALL
    • SubModel: Z06

    2005-2009 GMC SIERRA 1500

    • Liter: 6.0
    • EngineType: V8
    • SubModel: SLE

    2011-2013 CADILLAC ESCALADE ESV

    • CC: 6199
    • Liter: 6.2
    • SubModel: PLATINUM
    • EngineType: V8

    2010-2012 CHEVROLET SILVERADO 1500

    • CC: 6199
    • Liter: 6.2
    • SubModel: LT
    • EngineType: V8

    2007-2009 CHEVROLET AVALANCHE

    • Liter: 6.0
    • EngineType: V8
    • SubModel: LTZ

    2009-2010 CADILLAC ESCALADE

    • CC: 6199
    • Liter: 6.2
    • SubModel: BASE
    • CUI: 376
    • EngineType: V8

    2005-2006 GMC YUKON XL 2500

    • Liter: 6.0
    • EngineType: V8
    • SubModel: SLE

    2013 CADILLAC ESCALADE

    • EngineType: ALL
    • SubModel: BASE

    2008-2013 CHEVROLET TAHOE

    • EngineType: ALL
    • SubModel: HYBRID

    1999 GMC C1500 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SIERRA SL

    2005-2006 CHEVROLET SSR

    • EngineType: ALL
    • SubModel: ALL

    2009-2010 GMC SAVANA 2500

    • EngineType: ALL
    • SubModel: SLE

    1998-1999 GMC C1500 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    2009-2012 CHEVROLET CORVETTE

    • EngineType: ALL
    • SubModel: ZR-1

    2011-2013 GMC SIERRA 3500 HD

    • Liter: 6.0
    • EngineType: V8
    • SubModel: SLT

    1999 CHEVROLET K1500 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: LS

    1999-2000 CHEVROLET SILVERADO 2500

    • Liter: 6.0
    • EngineType: V8
    • SubModel: BASE

    2010-2012 GMC SIERRA 1500

    • CC: 6199
    • Liter: 6.2
    • SubModel: SLE
    • EngineType: V8

    2010-2013 CHEVROLET CORVETTE

    • EngineType: ALL
    • SubModel: GRAND SPORT

    2000 CHEVROLET TAHOE

    • EngineType: ALL
    • SubModel: LIMITED
    25070 - JEGS Main Bearings is rated 5.0 out of 5 by 1.
    • 2016-09-24T08:46CST
    • 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
    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
    • 2016-09-24T08:46CST
    • 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
    Items You Need