LB7 VALVE COVER GASKET DIAGRAM Home / Chevy / GMC Duramax Injectors / LB7 2001-2004.5 / Chevy / GMC Duramax LB7 Accessories / LB7 Lower Valve Cover Gasket / Rocker Box Gasket / LB7 VALVE COVER GASKET DIAGRAM Written By Anna Mullen April 23rd, 2021 Share this...FacebookPinterestTwitterLinkedin