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-esi3696328
- 1998-chevrolet-camaro-z28-esi5346282
- 1998-chevrolet-camaro-z28-ss-esi5270878
- 1998-chevrolet-corvette-base-esi7799397
- 1998-chevrolet-corvette-indianapolis-500-pace-car-esi6413695
- 1998-pontiac-firebird-formula-esi5085962
- 1998-pontiac-firebird-trans-am-esi2739776
- 1999-chevrolet-camaro-z28-esi3778537
- 1999-chevrolet-camaro-z28-ss-esi4467410
- 1999-chevrolet-corvette-base-esi1698973
- 1999-pontiac-firebird-formula-esi5493564
- 1999-pontiac-firebird-trans-am-esi3142570
- 2000-chevrolet-camaro-z28-esi9248055
- 2000-chevrolet-camaro-z28-ss-esi8393994
- 2000-chevrolet-corvette-base-esi5864460
- 2000-pontiac-firebird-formula-esi4888442
- 2000-pontiac-firebird-trans-am-esi6150616
- 2001-chevrolet-camaro-z28-esi3159125
- 2001-chevrolet-camaro-z28-ss-esi1980372
- 2001-chevrolet-corvette-base-esi4454632
- 2001-pontiac-firebird-formula-esi3631136
- 2001-pontiac-firebird-trans-am-esi4160028
- 2002-chevrolet-camaro-z28-esi1862486
- 2002-chevrolet-camaro-z28-ss-esi7813227
- 2002-chevrolet-corvette-base-esi1766298
- 2002-pontiac-firebird-formula-esi4248555
- 2002-pontiac-firebird-trans-am-esi8101205
- 2003-chevrolet-corvette-50th-anniversary-edition-esi4102470
- 2003-chevrolet-corvette-base-esi4042151
- 2004-chevrolet-corvette-base-esi7615553
- 2004-pontiac-gto-base-esi1930608
- 2005-chevrolet-corvette-base-esi3503416
- 2005-chevrolet-ssr-base-esi3905193
- 2005-pontiac-gto-base-esi2351459
- 2006-cadillac-cts-v-esi3581655
- 2006-chevrolet-corvette-base-esi2935657
- 2006-chevrolet-corvette-z06-esi1049949
- 2006-chevrolet-ssr-base-esi3555829
- 2006-chevrolet-trailblazer-ss-esi5653519
- 2006-pontiac-gto-base-esi3862778
- 2007-cadillac-cts-v-esi9493129
- 2007-chevrolet-corvette-base-esi2660343
- 2007-chevrolet-corvette-z06-esi6804771
- 2007-chevrolet-trailblazer-ss-esi8651644
- 2008-chevrolet-corvette-427-limited-edition-z06-esi2316081
- 2008-chevrolet-corvette-base-esi8354372
- 2008-chevrolet-corvette-z06-esi5591299
- 2008-chevrolet-trailblazer-ss-esi9558294
- 2009-chevrolet-corvette-base-esi8391574
- 2009-chevrolet-corvette-z06-esi5159025
- 2009-chevrolet-trailblazer-ss-esi1849009
- 2009-pontiac-g8-gxp-esi7961697
- 2010-chevrolet-camaro-ss-esi1772850
- 2010-chevrolet-corvette-base-esi3229924
- 2010-chevrolet-corvette-grand-sport-esi6015552
- 2010-chevrolet-corvette-z06-esi8916333
- 2011-chevrolet-camaro-ss-esi1536340
- 2011-chevrolet-corvette-base-esi9111293
- 2011-chevrolet-corvette-grand-sport-esi2503495
- 2011-chevrolet-corvette-z06-carbon-esi8412102
- 2011-chevrolet-corvette-z06-esi7532840
- 2012-chevrolet-camaro-ss-esi6284609
- 2012-chevrolet-corvette-base-esi3647609
- 2012-chevrolet-corvette-grand-sport-esi5803487
- 2012-chevrolet-corvette-z06-esi7703902
- 2013-chevrolet-camaro-ss-esi7313125
- 2013-chevrolet-corvette-427-esi5280708
- 2013-chevrolet-corvette-base-esi9296809
- 2013-chevrolet-corvette-grand-sport-esi7548438
- 2013-chevrolet-corvette-z06-esi6370178
- 2014-chevrolet-camaro-ss-esi1975701
- 2014-chevrolet-camaro-z-28-esi3516964
- 2014-chevrolet-ss-base-esi8742207
- 2015-chevrolet-camaro-ss-esi4477927
- 2015-chevrolet-camaro-z-28-esi3315647
- 2015-chevrolet-ss-base-esi2155706
- 2016-chevrolet-ss-base-esi6639906
- 2017-chevrolet-ss-base-esi8879278
- 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