Skip to Product Info
    • Cometic GM LS1 SB 3.910 inch Bore .040 inch MLS Head Gasket
    • Cometic GM LS1 SB 3.910 inch Bore .040 inch MLS Head Gasket
    • Cometic GM LS1 SB 3.910 inch Bore .040 inch MLS Head Gasket
    • Cometic GM LS1 SB 3.910 inch Bore .040 inch MLS Head Gasket
    • Cometic GM LS1 SB 3.910 inch Bore .040 inch MLS Head Gasket
    • Cometic GM LS1 SB 3.910 inch Bore .040 inch MLS Head Gasket
    • Cometic GM LS1 SB 3.910 inch Bore .040 inch MLS Head Gasket
    Sale!

    Cometic GM LS1 SB 3.910 inch Bore .040 inch MLS Head Gasket

    Vendor: Cometic Gasket
    SKU: CGSC5475-040
    Save $9.77
    Sale Price $87.95 Regular Price $97.72
    Free Shipping on Orders Over $99
    Professional, Enthusiast-Driven Customer Support
    International Shipping Available - Contact Us!
    Payment & Security

    Payments are processed through secure, encrypted systems. Your credit card details are never stored or accessible by us.

    • Amazon
    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Mastercard
    • PayPal
    • Shop Pay
    • Venmo
    • Visa
    Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.040". Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flour elastomer rubber based material that is heat resistant to 250 C/ 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements.

    This Part Fits:

    Year Make Model Submodel
    2001-2004 Avanti II Base
    2008-2009 Buick LaCrosse Super
    2004-2007 Buick Rainier CXL
    2004-2005 Buick Rainier CXL Plus
    2004-2007 Cadillac CTS V
    2002-2005 Cadillac Escalade Base
    2013 Chevrolet Avalanche Black Diamond LS
    2013 Chevrolet Avalanche Black Diamond LT
    2013 Chevrolet Avalanche Black Diamond LTZ
    2007-2012 Chevrolet Avalanche LS
    2007-2012 Chevrolet Avalanche LT
    2007-2012 Chevrolet Avalanche LTZ
    2002-2005 Chevrolet Avalanche 1500 Base
    2005-2006 Chevrolet Avalanche 1500 LS
    2005-2006 Chevrolet Avalanche 1500 LT
    2002-2003 Chevrolet Avalanche 1500 North Face
    2002-2003 Chevrolet Avalanche 1500 On Road Edition
    2003 Chevrolet Avalanche 1500 WBH
    2004-2006 Chevrolet Avalanche 1500 Z66
    2002-2006 Chevrolet Avalanche 1500 Z71
    2010-2015 Chevrolet Camaro SS
    1998-2002 Chevrolet Camaro Z28
    1998-2002 Chevrolet Camaro Z28 SS
    2009-2012 Chevrolet Colorado LT
    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
    2001-2004 Chevrolet Corvette Z06
    2003-2009 Chevrolet Express 1500 Base
    2003-2009 Chevrolet Express 1500 LS
    2006-2009 Chevrolet Express 1500 LT
    2003-2009 Chevrolet Express 2500 Base
    2003-2006 Chevrolet Express 2500 LS
    2006 Chevrolet Express 2500 LT
    2003-2009 Chevrolet Express 3500 Base
    2003-2005 Chevrolet Express 3500 LS
    2006-2009 Chevrolet Impala SS
    2006-2007 Chevrolet Monte Carlo SS
    1999-2005 Chevrolet Silverado 1500 Base
    2004-2006 Chevrolet Silverado 1500 Hybrid
    1999-2013 Chevrolet Silverado 1500 LS
    1999-2013 Chevrolet Silverado 1500 LT
    2007-2013 Chevrolet Silverado 1500 LTZ
    2002-2013 Chevrolet Silverado 1500 WT
    2004-2005 Chevrolet Silverado 1500 Z71 Off-Road
    2007 Chevrolet Silverado 1500 Classic Hybrid
    2007 Chevrolet Silverado 1500 Classic LS
    2007 Chevrolet Silverado 1500 Classic LT
    2007 Chevrolet Silverado 1500 Classic WT
    1999-2000 Chevrolet Silverado 2500 Base
    1999-2000 Chevrolet Silverado 2500 LS
    1999-2000 Chevrolet Silverado 2500 LT
    2014-2017 Chevrolet SS Base
    2003-2006 Chevrolet SSR Base
    2000-2001,2006 Chevrolet Suburban 1500 Base
    2000-2014 Chevrolet Suburban 1500 LS
    2000-2014 Chevrolet Suburban 1500 LT
    2007-2014 Chevrolet Suburban 1500 LTZ
    2002-2006 Chevrolet Suburban 1500 Z71
    2000-2001,2006 Chevrolet Tahoe Base
    2000 Chevrolet Tahoe Limited
    2000-2014 Chevrolet Tahoe LS
    2000-2014 Chevrolet Tahoe LT
    2007-2014 Chevrolet Tahoe LTZ
    2007-2014 Chevrolet Tahoe PPV
    2012-2014 Chevrolet Tahoe SSV
    2000,2002-2006 Chevrolet Tahoe Z71
    2008 Chevrolet Trailblazer Base
    2006-2007 Chevrolet Trailblazer LS
    2006-2008 Chevrolet Trailblazer LT
    2006-2009 Chevrolet Trailblazer SS
    2003-2006 Chevrolet Trailblazer EXT LS
    2003-2006 Chevrolet Trailblazer EXT LT
    2003-2004 Chevrolet Trailblazer EXT North Face
    2009-2012 GMC Canyon SLE
    2009-2012 GMC Canyon SLT
    2005-2009 GMC Envoy Denali
    2005-2006 GMC Envoy XL Denali
    2003-2005 GMC Envoy XL SLE
    2003-2005 GMC Envoy XL SLT
    2004-2005 GMC Envoy XUV SLE
    2004-2005 GMC Envoy XUV SLT
    2003-2009 GMC Savana 1500 Base
    2006-2009 GMC Savana 1500 LS
    2006-2009 GMC Savana 1500 LT
    2003-2005 GMC Savana 1500 SLE
    2003-2009 GMC Savana 2500 Base
    2003-2005 GMC Savana 2500 SLE
    2003-2009 GMC Savana 3500 Base
    2003-2005 GMC Savana 3500 SLE
    2002-2005 GMC Sierra 1500 Base
    2002 GMC Sierra 1500 HT
    2005-2006 GMC Sierra 1500 Hybrid
    1999-2003,2006-2013 GMC Sierra 1500 SL
    1999-2013 GMC Sierra 1500 SLE
    1999-2013 GMC Sierra 1500 SLT
    2002-2013 GMC Sierra 1500 WT
    2010-2013 GMC Sierra 1500 XFE
    2007 GMC Sierra 1500 Classic Hybrid
    2007 GMC Sierra 1500 Classic SL
    2007 GMC Sierra 1500 Classic SLE
    2007 GMC Sierra 1500 Classic SLT
    2007 GMC Sierra 1500 Classic WT
    2000 GMC Yukon Denali
    2006 GMC Yukon SL
    2000-2014 GMC Yukon SLE
    2000-2014 GMC Yukon SLT
    2006 GMC Yukon XL 1500 SL
    2000-2014 GMC Yukon XL 1500 SLE
    2000-2014 GMC Yukon XL 1500 SLT
    2008-2009 Hummer H3 Alpha
    2009 Hummer H3 Championship Series
    2009 Hummer H3T Alpha
    2003 Isuzu Ascender Base
    2003-2005 Isuzu Ascender Limited
    2003-2006 Isuzu Ascender LS
    2005 Isuzu Ascender S
    1998-2002 Pontiac Firebird Formula
    1998-2002 Pontiac Firebird Trans Am
    2009 Pontiac G8 GXP
    2005-2008 Pontiac Grand Prix GXP
    2004-2006 Pontiac GTO Base
    2006-2009 Saab 9-7x 5.3i
    2005 Saab 9-7x Arc
    Shipping Policy

    Cancellations

    Once an order is placed, in most cases it cannot be cancelled as they are sent for fulfillment almost immediately after receiving the order. If there is an ability to cancel the order, the buyer is responsible for the transaction fees charged from the transaction.

    Processing Time

    In-stock orders are typically processed and shipped within 1–2 business days of receiving payment, unless otherwise stated on the product page. Orders placed on weekends or holidays will be processed on the next business day.

    Shipping Costs

    Shipping costs are calculated based on the shipping method selected, the weight and dimensions of the package, and the destination address. You can view the shipping costs for your order during the checkout process before finalizing your purchase.

    Tracking Information

    Once your order has been shipped, you will receive a shipping confirmation email with tracking information. You can use this information to track the status of your package and monitor its delivery progress.

    Delivery Time

    While we make every effort to ensure timely delivery, please note that delivery times may vary due to factors beyond our control, such as weather conditions or carrier delays.

    International Shipping

    For international orders, please be aware that customs duties, taxes, and other fees may apply upon delivery. These additional charges are the responsibility of the recipient and are not included in the shipping cost paid at checkout. Please check with your local customs office for information on potential fees before placing your order.

    Shipping Address

    Please ensure that the shipping address provided during checkout is accurate and complete. We are not responsible for orders shipped to incorrect or undeliverable addresses due to customer error.

    Return Policy

    Return Period

    You have up to 30 days from the date of purchase to return eligible items.

    Condition of the Item

    A 20% restocking fee will apply to cover inspection, processing, and repackaging costs.

    Items must be returned in new, unused condition and include all original packaging, hardware, and documentation.

    Return Shipping

    The cost of return shipping is the responsibility of the buyer unless the item was received damaged, defective, or incorrect.

    Return Authorization

    Before returning any item, please contact our customer service team to obtain a Return Merchandise Authorization (RMA) number. Items returned without an RMA may not be accepted.

    Refund Processing

    Once the returned item is received and inspected, we will initiate the refund process. Please allow 2–5 days for the refund to be processed and credited to the original payment method. Bank processing times may vary.

    Damaged or Defective Items

    If you receive a damaged, defective, or incorrect item, contact us immediately for assistance. We’ll work quickly to resolve the issue or send a replacement.

    Final Sale Items

    Certain items may be marked as Final Sale and are not eligible for return or exchange. These will be clearly noted on the product page.

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

    Recently Viewed