Hooker BlackHeart 12643HKR 78-88 GM G-Body LS-Swap Engine Motor Mount Brackets. GM G-BODY, LS-SWAP ENGINE MOUNT KIT. ABOUT HOOKER BLACKHEART At the HEART of any performance vehicle is the exhaust system. For decades, many of the most powerful vehicles on the planet have used Hooker Headers. To stay in front, we introduced the Blackheart line of Performance Exhaust Systems for popular late model vehicles. Utilizing the latest technology and materials to design exhaust systems, engine swap kits and mufflers for both Import and Domestic cars and trucks. From cylinder head flange to tailpipe, Blackheart is engineered to provide maximum exhaust velocity, ground clearance, style, performance, and quality. We Feature all of these great products from the Holley family! Our central location in Des Moines, Iowa offers top quality products at affordable prices to all automotive enthusiasts in the continental United States. The showroom offers the unique experience for customers to touch and feel the performance products they are purchasing and learn more about the Chevrolet Performance line. Karl Kustoms is a division of Karl Chevrolet. Carl Moyer started Karl Chevrolet in a small showroom in Ankeny in 1978. Over the years the dealership became the number one dealership in Iowa, and eventually the Midwest. In 2006, Karl Chevrolet gained the recognition as #1 GM Certified Pre-Owned Dealer in the nation. Karl Chevrolet- Your dealer for life! Please see the “Compatibility” link at the top of the listing. Fitment information may not be available for all products and those without fitment will not have a Compatibility link. Please be sure to view the “Notes” option for important details if it is available. You will see your order has been “Delivered” to Pitney Bowes in Erlanger, KY. We are unable to guarantee a specific carrier. We are unable to send an order without an invoice. Our goal is to ensure our customers are taken care of. Please send us a message before ordering, if you are unsure an item will work for your application. Powered by SixBit’s eCommerce Solution.