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Part
F100009
BARE GM LS 243 HEAD - 4.8L, 5.3L & 6.0L
$299.99
manufacturer
FULCRUM
Generation III V8 cathedral intake port cylinder head. Casting 12564243. For truck, van, SUV and perfomance applications. Used on LS6, L33, L20, LH6, LY5, LMG, LC9,LS4, LH8, LS2, LFA, LZ1 engines.
| Weight | 26.0 lbs |
|---|---|
| Condition | New |
| INTAKE PORT SHAPE | CATHEDRAL |
| VALVE SIZE (Int/Ex) | 2 in/1.55 in |
| MATERIAL | Aluminum |
| COMBUSTION CHAMBER VOLUME | 65cc |
| INTAKE PORT VOLUME | 210cc |
| EXHAUST PORT VOLUME | 75cc |
| CYLINDERS | 4 |
| VALVES | 8 |
| DRIVE TRAIN | OHV, 16 valve, (2 valve/cyl) |
| EXHAUST PORT SHAPE | D_PORT |
Generation III cylinder head for V8 truck, van, SUV and perfomance applications often called an LS6 head. It has cathedral shaped intake ports and D shaped exhaust. The combustion chamber is slightly smaller and more efficient than the earlier heads used on LS1 engines. These heads helped the LS6 produce more torque than the LS1. The exhaust port is D shaped to improve flow.
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Head produces high power.
This head can be retrofitted to an LS1. Hide full description...
This head can be retrofitted to an LS1. Hide full description...
| MAKE | MODEL | YEAR | ENGINE |
|---|---|---|---|
| BUICK | LACROSSE SUPER | 2008-2009 | 5.3L V8 (325CI) LS4 |
| BUICK | RAINIER | 2005-2007 | 5.3L V8 (325CI) LH6 |
| CADILLAC | CTS-V | 2004-2005 | 5.7L V8 (350CI) LS6 |
| CADILLAC | CTS-V | 2006-2007 | 6.0L V8 (364CI) LS2 |
| CADILLAC | ESCALADE HYBRID | 2008-2009 | 6.0L V8 (364CI) LFA |
| CADILLAC | ESCALADE HYBRID | 2010-2013 | 6.0L V8 (364CI) LZ1 |
| CHEVROLET | AVALANCHE | 2007-2011 | 5.3L V8 (325CI) LC9 |
| CHEVROLET | AVALANCHE | 2007-2013 | 5.3L V8 (325CI) LMG |
| CHEVROLET | AVALANCHE | 2007-2009 | 5.3L V8 (325CI) LY5 |
| CHEVROLET | COLORADO | 2009-2009 | 5.3L V8 (325CI) LH8 |
| CHEVROLET | CORVETTE | 2005-2007 | 6.0L V8 (364CI) LS2 |
| CHEVROLET | CORVETTE Z06 | 2001-2004 | 5.7L V8 (350CI) LS6 |
| CHEVROLET | EXPRESS | 2010-2014 | 4.8L V8 (293CI) L20 |
| CHEVROLET | IMPALA SS | 2006-2009 | 5.3L V8 (325CI) LS4 |
| CHEVROLET | MONTE CARLO SS | 2006-2007 | 5.3L V8 (325CI) LS4 |
| CHEVROLET | SILVERADO 1500 | 2010-2014 | 4.8L V8 (293CI) L20 |
| CHEVROLET | SILVERADO 1500 | 2005-2007 | 5.3L V8 (325CI) L33 |
| CHEVROLET | SILVERADO 1500 | 2007-2011 | 5.3L V8 (325CI) LC9 |
| CHEVROLET | SILVERADO 1500 | 2007-2009 | 5.3L V8 (325CI) LH6 |
| CHEVROLET | SILVERADO 1500 | 2007-2013 | 5.3L V8 (325CI) LMG |
| CHEVROLET | SILVERADO 1500 | 2007-2009 | 5.3L V8 (325CI) LY5 |
| CHEVROLET | SILVERADO HYBRID | 2008-2009 | 6.0L V8 (364CI) LFA |
| CHEVROLET | SILVERADO HYBRID | 2010-2013 | 6.0L V8 (364CI) LZ1 |
| CHEVROLET | SSR | 2005-2006 | 6.0L V8 (364CI) LS2 |
| CHEVROLET | SUBURBAN | 2007-2011 | 5.3L V8 (325CI) LC9 |
| CHEVROLET | SUBURBAN | 2007-2014 | 5.3L V8 (325CI) LMG |
| CHEVROLET | SUBURBAN 1500 | 2007-2009 | 5.3L V8 (325CI) LY5 |
| CHEVROLET | TAHOE | 2009-2011 | 5.3L V8 (325CI) LC9 |
| CHEVROLET | TAHOE | 2007-2014 | 5.3L V8 (325CI) LMG |
| CHEVROLET | TAHOE | 2007-2009 | 5.3L V8 (325CI) LY5 |
| CHEVROLET | TAHOE HYBRID | 2008-2009 | 6.0L V8 (364CI) LFA |
| CHEVROLET | TAHOE HYBRID | 2010-2013 | 6.0L V8 (364CI) LZ1 |
| CHEVROLET | TRAILBLAZER | 2006-2008 | 5.3L V8 (325CI) LH6 |
| CHEVROLET | TRAILBLAZER EXT | 2005-2006 | 5.3L V8 (325CI) LH6 |
| CHEVROLET | TRAILBLAZER SS | 2006-2009 | 6.0L V8 (364CI) LS2 |
| GMC | CANYON | 2009-2009 | 5.3L V8 (325CI) LH8 |
| GMC | ENVOY DENALI | 2005-2009 | 5.3L V8 (325CI) LH6 |
| GMC | ENVOY XL | 2005-2006 | 5.3L V8 (325CI) LH6 |
| GMC | ENVOY XUV | 2005-2006 | 5.3L V8 (325CI) LH6 |
| GMC | SAVANA | 2010-2014 | 4.8L V8 (293CI) L20 |
| GMC | SIERRA 1500 | 2010-2014 | 4.8L V8 (293CI) L20 |
| GMC | SIERRA 1500 | 2005-2007 | 5.3L V8 (325CI) L33 |
| GMC | SIERRA 1500 | 2007-2011 | 5.3L V8 (325CI) LC9 |
| GMC | SIERRA 1500 | 2007-2009 | 5.3L V8 (325CI) LH6 |
| GMC | SIERRA 1500 | 2007-2013 | 5.3L V8 (325CI) LMG |
| GMC | SIERRA 1500 | 2007-2009 | 5.3L V8 (325CI) LY5 |
| GMC | SIERRA HYBRID | 2008-2009 | 6.0L V8 (364CI) LFA |
| GMC | SIERRA HYBRID | 2010-2013 | 6.0L V8 (364CI) LZ1 |
| GMC | YUKON | 2009-2010 | 5.3L V8 (325CI) LC9 |
| GMC | YUKON | 2007-2014 | 5.3L V8 (325CI) LMG |
| GMC | YUKON | 2007-2009 | 5.3L V8 (325CI) LY5 |
| GMC | YUKON HYBRID | 2008-2009 | 6.0L V8 (364CI) LFA |
| GMC | YUKON HYBRID | 2010-2013 | 6.0L V8 (364CI) LZ1 |
| GMC | YUKON XL | 2007-2011 | 5.3L V8 (325CI) LC9 |
| GMC | YUKON XL | 2007-2009 | 5.3L V8 (325CI) LY5 |
| HUMMER | H3 | 2008-2009 | 5.3L V8 (325CI) LH8 |
| ISUZU | ASCENDER | 2005-2006 | 5.3L V8 (325CI) LH6 |
| PONTIAC | GRAND PRIX GXP | 2005-2008 | 5.3L V8 (325CI) LS4 |
| PONTIAC | GTO | 2005-2006 | 6.0L V8 (364CI) LS2 |
| SAAB | 9.7X AERO | 2008-2009 | 6.0L V8 (364CI) LS2 |
| SAAB | 9-7X 5.3I, ARC | 2005-2009 | 5.3L V8 (325CI) LH6 |
- New parts are warrantied for 6 months.
- New parts warranty will be limited to replacement of defective parts.
- Replacement parts will be shipped ASAP from our facility.