Block Specifications: Designed from heavy-duty A357-T6 aluminum material, 4.125”-4.165” siamese cast bore walls w/ press-in spun cast iron liner, Available in standard (9.240”) & tall (9.750”) deck heights w/ beefy .750” deck thickness, Both standard deck (5.67”/5.87”- same as LS7) & tall deck (5.94”/6.38”) cylinder liner lengths available, “Long arm friendly” – Accommodations for up to 4.6” stroke w/ standard rod pin diameters (2.100”) & oversized 60mm camshaft, Main cap surface area maximized at mating surface & large fillets from cap to cross bolts for added strength, Designed for clearance – side oil galley moved outboard & engineered rod clearance come standard, Significantly increased windage passage area under bores & around caps over LS7/LSX engines, 6 head bolt design w/ full water jacket around the cylinders (based on LS7 design), Bay-to-bay breathing improved w/ increased side window area versus LSX & LS7, Extra-large windows in valley for access to inboard “6th” head bolt, Extra-long liners for standard (5.87”) & tall (6.38”) decks.
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001-2004 | Avanti | II | Base |
| 2006-2007 | Cadillac | CTS | V |
| 2010-2015 | Chevrolet | Camaro | SS |
| 2014-2015 | Chevrolet | Camaro | Z/28 |
| 1998-2002 | Chevrolet | Camaro | Z28 |
| 1998-2002 | Chevrolet | Camaro | Z28 SS |
| 2013 | Chevrolet | Corvette | 427 |
| 2008 | Chevrolet | Corvette | 427 Limited Edition Z06 |
| 2003 | Chevrolet | Corvette | 50th Anniversary Edition |
| 2003 | Chevrolet | Corvette | 50th Anniversary Edition Pace Car |
| 1997-2013 | Chevrolet | Corvette | Base |
| 2010-2013 | Chevrolet | Corvette | Grand Sport |
| 1998 | Chevrolet | Corvette | Indianapolis 500 Pace Car |
| 2006-2013 | Chevrolet | Corvette | Z06 |
| 2011 | Chevrolet | Corvette | Z06 Carbon |
| 2014-2017 | Chevrolet | SS | Base |
| 2005-2006 | Chevrolet | SSR | Base |
| 2006-2009 | Chevrolet | Trailblazer | SS |
| 1998-2002 | Pontiac | Firebird | Formula |
| 1998-2002 | Pontiac | Firebird | Trans Am |
| 2009 | Pontiac | G8 | GXP |
| 2004-2006 | Pontiac | GTO | Base |
| 2008-2009 | Saab | 9-7x | Aero |
- 1997-chevrolet-corvette-base-esi4152518
- 1998-chevrolet-camaro-z28-esi4955554
- 1998-chevrolet-camaro-z28-ss-esi3275612
- 1998-chevrolet-corvette-base-esi9060890
- 1998-chevrolet-corvette-indianapolis-500-pace-car-esi2256760
- 1998-pontiac-firebird-formula-esi9997933
- 1998-pontiac-firebird-trans-am-esi6458433
- 1999-chevrolet-camaro-z28-esi1691294
- 1999-chevrolet-camaro-z28-ss-esi8337638
- 1999-chevrolet-corvette-base-esi2785719
- 1999-pontiac-firebird-formula-esi5414162
- 1999-pontiac-firebird-trans-am-esi6508150
- 2000-chevrolet-camaro-z28-esi2509871
- 2000-chevrolet-camaro-z28-ss-esi3578537
- 2000-chevrolet-corvette-base-esi5739941
- 2000-pontiac-firebird-formula-esi4592401
- 2000-pontiac-firebird-trans-am-esi6113812
- 2001-chevrolet-camaro-z28-esi1523518
- 2001-chevrolet-camaro-z28-ss-esi5843729
- 2001-chevrolet-corvette-base-esi6775557
- 2001-pontiac-firebird-formula-esi9180692
- 2001-pontiac-firebird-trans-am-esi2953140
- 2002-chevrolet-camaro-z28-esi6750462
- 2002-chevrolet-camaro-z28-ss-esi3656406
- 2002-chevrolet-corvette-base-esi6532575
- 2002-pontiac-firebird-formula-esi7406726
- 2002-pontiac-firebird-trans-am-esi7272497
- 2003-chevrolet-corvette-50th-anniversary-edition-esi2386339
- 2003-chevrolet-corvette-base-esi8694025
- 2004-chevrolet-corvette-base-esi8290939
- 2004-pontiac-gto-base-esi1466194
- 2005-chevrolet-corvette-base-esi8743846
- 2005-chevrolet-ssr-base-esi5158877
- 2005-pontiac-gto-base-esi9400825
- 2006-cadillac-cts-v-esi4411708
- 2006-chevrolet-corvette-base-esi8268946
- 2006-chevrolet-corvette-z06-esi6081787
- 2006-chevrolet-ssr-base-esi3421203
- 2006-chevrolet-trailblazer-ss-esi1385300
- 2006-pontiac-gto-base-esi3938092
- 2007-cadillac-cts-v-esi3270799
- 2007-chevrolet-corvette-base-esi6578686
- 2007-chevrolet-corvette-z06-esi9271883
- 2007-chevrolet-trailblazer-ss-esi3637300
- 2008-chevrolet-corvette-427-limited-edition-z06-esi2574549
- 2008-chevrolet-corvette-base-esi1090925
- 2008-chevrolet-corvette-z06-esi5569692
- 2008-chevrolet-trailblazer-ss-esi9555394
- 2009-chevrolet-corvette-base-esi3746878
- 2009-chevrolet-corvette-z06-esi5255016
- 2009-chevrolet-trailblazer-ss-esi6261446
- 2009-pontiac-g8-gxp-esi7558702
- 2010-chevrolet-camaro-ss-esi9995176
- 2010-chevrolet-corvette-base-esi9954990
- 2010-chevrolet-corvette-grand-sport-esi1513126
- 2010-chevrolet-corvette-z06-esi9030720
- 2011-chevrolet-camaro-ss-esi8924621
- 2011-chevrolet-corvette-base-esi3206929
- 2011-chevrolet-corvette-grand-sport-esi5417455
- 2011-chevrolet-corvette-z06-carbon-esi8136344
- 2011-chevrolet-corvette-z06-esi8269244
- 2012-chevrolet-camaro-ss-esi4618067
- 2012-chevrolet-corvette-base-esi6672784
- 2012-chevrolet-corvette-grand-sport-esi3870523
- 2012-chevrolet-corvette-z06-esi6672049
- 2013-chevrolet-camaro-ss-esi8987742
- 2013-chevrolet-corvette-427-esi2804500
- 2013-chevrolet-corvette-base-esi4606473
- 2013-chevrolet-corvette-grand-sport-esi9944577
- 2013-chevrolet-corvette-z06-esi5066557
- 2014-chevrolet-camaro-ss-esi3081383
- 2014-chevrolet-camaro-z-28-esi4168356
- 2014-chevrolet-ss-base-esi2769470
- 2015-chevrolet-camaro-ss-esi5103420
- 2015-chevrolet-camaro-z-28-esi6323311
- 2015-chevrolet-ss-base-esi5295230
- 2016-chevrolet-ss-base-esi2689834
- 2017-chevrolet-ss-base-esi7963963
- Bucket:Chevy
- ClearanceItem:N
- Engine Components>Engines
- EPA:N/A
- fits_1998-2002`Pontiac`Firebird`Trans Am~2009`Pontiac`G8`GXP~2004-2006`Pontiac`GTO`Base~2008-2009`Saab`9-7x`Aero
- fits_1998`Chevrolet`Corvette`Indianapolis 500 Pace Car~2006-2013`Chevrolet`Corvette`Z06~2011`Chevrolet`Corvette`Z06 Carbon~2014-2017`Chevrolet`SS`Base~2005-2006`Chevrolet`SSR`Base~2006-2009`Chevrolet`Trailblazer`SS~1998-2002`Pontiac`Firebird`Formula
- fits_2001-2004`Avanti`II`Base~2006-2007`Cadillac`CTS`V~2010-2015`Chevrolet`Camaro`SS~2014-2015`Chevrolet`Camaro`Z/28~1998-2002`Chevrolet`Camaro`Z28~1998-2002`Chevrolet`Camaro`Z28 SS~2013`Chevrolet`Corvette`427
- fits_2008`Chevrolet`Corvette`427 Limited Edition Z06~2003`Chevrolet`Corvette`50th Anniversary Edition~2003`Chevrolet`Corvette`50th Anniversary Edition Pace Car~1997-2013`Chevrolet`Corvette`Base~2010-2013`Chevrolet`Corvette`Grand Sport
- LTL:N
- MPN:54903U-904
- Non-CARB:Y
- Prop65:Y
- SpecialOrder:Y