The Granatelli Motor Sports GM Gen 3/4 / Chevy LS/LSA 4.8L/5.3L/5.7L/6.0L/6.2L/7.0L Valve Cover Gaskets & Seal Kit is designed for the 2001-2004 Avanti II and the other applications in the fitment table. Match manufacturer part number 640371, the complete vehicle or system configuration, dimensions, connections, and included components before ordering.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 2001-2004 | Avanti | II | Confirm engine, system type, dimensions, and exact interface |
| 2008-2009 | Buick | LaCrosse | Confirm engine, system type, dimensions, and exact interface |
| 2004-2007 | Cadillac | CTS | Confirm engine, system type, dimensions, and exact interface |
| 2009-2015 | Cadillac | CTS | Confirm engine, system type, dimensions, and exact interface |
| 2007-2014 | Cadillac | Escalade | Confirm engine, system type, dimensions, and exact interface |
| 2007-2014 | Cadillac | Escalade ESV | Confirm engine, system type, dimensions, and exact interface |
| 2007-2013 | Cadillac | Escalade EXT | Confirm engine, system type, dimensions, and exact interface |
| 1998-2002 | Chevrolet | Camaro | Confirm engine, system type, dimensions, and exact interface |
| 2010-2015 | Chevrolet | Camaro | Confirm engine, system type, dimensions, and exact interface |
| 1997-2013 | Chevrolet | Corvette | Confirm engine, system type, dimensions, and exact interface |
| 2010-2020 | Chevrolet | Express 2500 | Confirm engine, system type, dimensions, and exact interface |
| 2010-2020 | Chevrolet | Express 3500 | Confirm engine, system type, dimensions, and exact interface |
| 2006-2009 | Chevrolet | Impala | Confirm engine, system type, dimensions, and exact interface |
| 2016-2020 | Chevrolet | LCF 3500 | Confirm engine, system type, dimensions, and exact interface |
| 2006-2007 | Chevrolet | Monte Carlo | Confirm engine, system type, dimensions, and exact interface |
| 2014-2017 | Chevrolet | SS | Confirm engine, system type, dimensions, and exact interface |
| 2005-2006 | Chevrolet | SSR | Confirm engine, system type, dimensions, and exact interface |
| 2009-2013 | Chevrolet | Silverado 1500 | Confirm engine, system type, dimensions, and exact interface |
| 2010-2019 | Chevrolet | Silverado 2500 HD | Confirm engine, system type, dimensions, and exact interface |
| 2010-2019 | Chevrolet | Silverado 3500 HD | Confirm engine, system type, dimensions, and exact interface |
| 2010-2013 | Chevrolet | Suburban 2500 | Confirm engine, system type, dimensions, and exact interface |
| 2016-2019 | Chevrolet | Suburban 3500 HD | Confirm engine, system type, dimensions, and exact interface |
| 2008-2009 | Chevrolet | Tahoe | Confirm engine, system type, dimensions, and exact interface |
| 2006-2009 | Chevrolet | Trailblazer | Confirm engine, system type, dimensions, and exact interface |
| 2010-2020 | GMC | Savana 2500 | Confirm engine, system type, dimensions, and exact interface |
| 2010-2020 | GMC | Savana 3500 | Confirm engine, system type, dimensions, and exact interface |
| 2007-2013 | GMC | Sierra 1500 | Confirm engine, system type, dimensions, and exact interface |
| 2010-2019 | GMC | Sierra 2500 HD | Confirm engine, system type, dimensions, and exact interface |
| 2010-2019 | GMC | Sierra 3500 HD | Confirm engine, system type, dimensions, and exact interface |
| 2007-2014 | GMC | Yukon | Confirm engine, system type, dimensions, and exact interface |
| 2007-2014 | GMC | Yukon XL 1500 | Confirm engine, system type, dimensions, and exact interface |
| 2010-2013 | GMC | Yukon XL 2500 | Confirm engine, system type, dimensions, and exact interface |
| 2008-2009 | Hummer | H2 | Confirm engine, system type, dimensions, and exact interface |
| 1998-2002 | Pontiac | Firebird | Confirm engine, system type, dimensions, and exact interface |
| 2009 | Pontiac | G8 | Confirm engine, system type, dimensions, and exact interface |
| 2004-2006 | Pontiac | GTO | Confirm engine, system type, dimensions, and exact interface |
| 2005-2008 | Pontiac | Grand Prix | Confirm engine, system type, dimensions, and exact interface |
| 2008-2009 | Saab | 9-7x | Confirm engine, system type, dimensions, and exact interface |
Specifications
| Brand | Granatelli Motor Sports |
|---|---|
| Manufacturer Part Number | 640371 |
| Product Type | Valve Cover Gaskets |
| Fitment Type | Vehicle Specific |
| Condition | New |
| Engine Displacement | 4.8 L |
What's Included
One new Granatelli Motor Sports valve cover gaskets identified by manufacturer part number 640371, in the quantity stated by the title. Additional wiring, hoses, clamps, fittings, gaskets, fluids, tuning, tools, and installation hardware are included only when expressly listed for this exact part number.
About Granatelli Motor Sports
Granatelli Motor Sports develops ignition, airflow, exhaust, cooling, engine, brake, and fabrication components for domestic and import performance applications.
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Frequently Asked Questions
How do I confirm this Granatelli part is correct?
Match the manufacturer part number, dimensions, material, ports, finish, quantity, electrical requirements, system interface, and any listed vehicle fitment.
Is this a complete kit?
Only the components expressly stated in the title and What’s Included section are supplied. Related wiring, clamps, fittings, hoses, tools, or hardware may be sold separately.
Can this part be used on a custom build?
Universal and fabrication components may work when every dimension and interface is verified. Vehicle-specific parts should not be treated as universal without current manufacturer confirmation.
Installation Instructions
Follow the current Granatelli Motor Sports and vehicle service instructions for part number 640371. Compare every component, connection, dimension, and mounting point before disassembly. Use the correct tools, fasteners, torque values, fluids, wiring protection, and safety procedures, then inspect for leaks, interference, heat exposure, and secure operation before normal use.
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