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-esi6408407
- 1998-chevrolet-camaro-z28-esi6953766
- 1998-chevrolet-camaro-z28-ss-esi8814406
- 1998-chevrolet-corvette-base-esi5347360
- 1998-chevrolet-corvette-indianapolis-500-pace-car-esi4531932
- 1998-pontiac-firebird-formula-esi4003023
- 1998-pontiac-firebird-trans-am-esi2158545
- 1999-chevrolet-camaro-z28-esi7440161
- 1999-chevrolet-camaro-z28-ss-esi7082951
- 1999-chevrolet-corvette-base-esi5662753
- 1999-pontiac-firebird-formula-esi3298352
- 1999-pontiac-firebird-trans-am-esi1708596
- 2000-chevrolet-camaro-z28-esi4222763
- 2000-chevrolet-camaro-z28-ss-esi8384155
- 2000-chevrolet-corvette-base-esi3695410
- 2000-pontiac-firebird-formula-esi6359732
- 2000-pontiac-firebird-trans-am-esi8116590
- 2001-chevrolet-camaro-z28-esi2282532
- 2001-chevrolet-camaro-z28-ss-esi2982398
- 2001-chevrolet-corvette-base-esi8889816
- 2001-pontiac-firebird-formula-esi9491781
- 2001-pontiac-firebird-trans-am-esi8560514
- 2002-chevrolet-camaro-z28-esi4284483
- 2002-chevrolet-camaro-z28-ss-esi9246275
- 2002-chevrolet-corvette-base-esi4615463
- 2002-pontiac-firebird-formula-esi8925761
- 2002-pontiac-firebird-trans-am-esi9440059
- 2003-chevrolet-corvette-50th-anniversary-edition-esi7737021
- 2003-chevrolet-corvette-base-esi3530752
- 2004-chevrolet-corvette-base-esi3192135
- 2004-pontiac-gto-base-esi5850236
- 2005-chevrolet-corvette-base-esi3057266
- 2005-chevrolet-ssr-base-esi8254066
- 2005-pontiac-gto-base-esi2871928
- 2006-cadillac-cts-v-esi3779092
- 2006-chevrolet-corvette-base-esi9619996
- 2006-chevrolet-corvette-z06-esi2253846
- 2006-chevrolet-ssr-base-esi6939846
- 2006-chevrolet-trailblazer-ss-esi2732577
- 2006-pontiac-gto-base-esi5521473
- 2007-cadillac-cts-v-esi2368945
- 2007-chevrolet-corvette-base-esi8718758
- 2007-chevrolet-corvette-z06-esi3065412
- 2007-chevrolet-trailblazer-ss-esi5730529
- 2008-chevrolet-corvette-427-limited-edition-z06-esi5527470
- 2008-chevrolet-corvette-base-esi7930992
- 2008-chevrolet-corvette-z06-esi8277448
- 2008-chevrolet-trailblazer-ss-esi7343114
- 2009-chevrolet-corvette-base-esi8938585
- 2009-chevrolet-corvette-z06-esi4017862
- 2009-chevrolet-trailblazer-ss-esi5349281
- 2009-pontiac-g8-gxp-esi6309016
- 2010-chevrolet-camaro-ss-esi2392123
- 2010-chevrolet-corvette-base-esi4770300
- 2010-chevrolet-corvette-grand-sport-esi5878293
- 2010-chevrolet-corvette-z06-esi7700774
- 2011-chevrolet-camaro-ss-esi9894251
- 2011-chevrolet-corvette-base-esi9015835
- 2011-chevrolet-corvette-grand-sport-esi5784364
- 2011-chevrolet-corvette-z06-carbon-esi5354379
- 2011-chevrolet-corvette-z06-esi3228967
- 2012-chevrolet-camaro-ss-esi8301681
- 2012-chevrolet-corvette-base-esi5789161
- 2012-chevrolet-corvette-grand-sport-esi4501099
- 2012-chevrolet-corvette-z06-esi9316595
- 2013-chevrolet-camaro-ss-esi4060350
- 2013-chevrolet-corvette-427-esi5428196
- 2013-chevrolet-corvette-base-esi4487037
- 2013-chevrolet-corvette-grand-sport-esi4008341
- 2013-chevrolet-corvette-z06-esi8251263
- 2014-chevrolet-camaro-ss-esi1489090
- 2014-chevrolet-camaro-z-28-esi7829137
- 2014-chevrolet-ss-base-esi4515776
- 2015-chevrolet-camaro-ss-esi9106508
- 2015-chevrolet-camaro-z-28-esi8620458
- 2015-chevrolet-ss-base-esi9300984
- 2016-chevrolet-ss-base-esi5313169
- 2017-chevrolet-ss-base-esi1605521
- 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