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The Cometic Street Pro 01-10 GM LS 4.8L / 5.3L / 3.840in Truck SUV Top End Gasket Kit - PRO1040T is a precision-engineered gasket kit with a 3.840" bore and .840" compressed thickness.
This Cometic complete gasket kit delivers a comprehensive, precision-matched set of seals and gaskets engineered to OE or better specifications. Each component is manufactured from materials specifically chosen for their temperature range, chemical resistance, and compressibility — ensuring every sealing surface in your engine is properly protected during rebuild or performance upgrades.
Verified fitment: Buick LaCrosse (2008–2009); Buick Rainier (2004–2007); Cadillac Escalade (2002–2005); Chevrolet Avalanche (2007–2013); Chevrolet Avalanche 1500 (2002–2006); Chevrolet Colorado (2009–2012); Chevrolet Express 1500 (2003–2009); Chevrolet Express 2500 (2003–2009); and 21 more.
Free U.S. standard shipping on qualifying orders $199+. Special order and made-to-order items can't be cancelled or refunded once ordered.
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We carry 750,000+ parts, so we can probably still get it. Check the spelling, try the part number, or ask us.
Request this part Text us (833) 691-5717