{"id":62302,"date":"2020-10-14T14:16:36","date_gmt":"2020-10-14T19:16:36","guid":{"rendered":"https:\/\/engineswapdepot.com\/?p=62302"},"modified":"2020-10-14T14:16:36","modified_gmt":"2020-10-14T19:16:36","slug":"for-sale-1981-firebird-trans-am-with-a-twin-turbo-ls9-v8","status":"publish","type":"post","link":"https:\/\/engineswapdepot.com\/?p=62302","title":{"rendered":"For Sale: 1981 Firebird Trans Am with a Twin-Turbo LS9 V8"},"content":{"rendered":"<p><a href=\"https:\/\/engineswapdepot.com\/?attachment_id=62313\" rel=\"attachment wp-att-62313\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"62313\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=62313\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-10.jpg?fit=1664%2C936&amp;ssl=1\" data-orig-size=\"1664,936\" data-comments-opened=\"1\" data-image-title=\"1981 Firebird Trans Am with a twin-turbo LS9 V8 10\" data-image-description=\"&lt;p&gt;1981 Firebird Trans Am with a twin-turbo LS9 V8&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-10.jpg?fit=1200%2C675&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-10.jpg?resize=600%2C338&#038;ssl=1\" alt=\"1981 Firebird Trans Am with a twin-turbo LS9 V8\" width=\"600\" height=\"338\" class=\"alignnone size-medium wp-image-62313\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-10.jpg?resize=600%2C338&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-10.jpg?resize=1200%2C675&amp;ssl=1 1200w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-10.jpg?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-10.jpg?resize=1536%2C864&amp;ssl=1 1536w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-10.jpg?w=1664&amp;ssl=1 1664w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p>This 1981 Firebird Trans Am will be <a href=\"https:\/\/www.mecum.com\/lots\/DA0920-420150\/1981-pontiac-turbo-trans-am-resto-mod\/\">auctioned at Mecum<\/a> in Dallas, Texas on October 15-17. The car is called &#8220;Full Force Trans Am&#8221; and was built by <a href=\"https:\/\/www.schwartzperformance.com\/\">Schwartz Performance<\/a> in Woodstock, Illinois with an estimated cost of $300,000. Under the hood sits a twin-turbo 6.9 L LS9 V8 capable of 1,300 horsepower. The motor features a LS9 block, forged internals, LS7 crank and dry sump, ported LS9 heads, and two 70 mm turbochargers. A Bowler 4L85E four-speed automatic transmission sends power through a custom driveshaft to a Winters full-floating 9-inch housing with a Moser third-member and Wavetrac LSD with 3.70 gears. The car rides on a Schwartz Performance G-Machine chassis with RideTech triple-adjustable coilovers, power steering, and Baer Extreme-Plus disc brakes with 14-inch rotors and six-piston calipers in front and rear. <\/p>\n<p><a href=\"https:\/\/engineswapdepot.com\/?attachment_id=62314\" rel=\"attachment wp-att-62314\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"62314\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=62314\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-11.jpg?fit=1664%2C936&amp;ssl=1\" data-orig-size=\"1664,936\" data-comments-opened=\"1\" data-image-title=\"1981 Firebird Trans Am with a twin-turbo LS9 V8 11\" data-image-description=\"&lt;p&gt;1981 Firebird Trans Am with a twin-turbo LS9 V8&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-11.jpg?fit=1200%2C675&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-11.jpg?resize=600%2C338&#038;ssl=1\" alt=\"1981 Firebird Trans Am with a twin-turbo LS9 V8\" width=\"600\" height=\"338\" class=\"alignnone size-medium wp-image-62314\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-11.jpg?resize=600%2C338&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-11.jpg?resize=1200%2C675&amp;ssl=1 1200w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-11.jpg?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-11.jpg?resize=1536%2C864&amp;ssl=1 1536w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-11.jpg?w=1664&amp;ssl=1 1664w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/engineswapdepot.com\/?attachment_id=62315\" rel=\"attachment wp-att-62315\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"62315\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=62315\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-12.jpg?fit=1664%2C936&amp;ssl=1\" data-orig-size=\"1664,936\" data-comments-opened=\"1\" data-image-title=\"1981 Firebird Trans Am with a twin-turbo LS9 V8 12\" data-image-description=\"&lt;p&gt;1981 Firebird Trans Am with a twin-turbo LS9 V8&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-12.jpg?fit=1200%2C675&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-12.jpg?resize=600%2C338&#038;ssl=1\" alt=\"1981 Firebird Trans Am with a twin-turbo LS9 V8\" width=\"600\" height=\"338\" class=\"alignnone size-medium wp-image-62315\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-12.jpg?resize=600%2C338&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-12.jpg?resize=1200%2C675&amp;ssl=1 1200w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-12.jpg?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-12.jpg?resize=1536%2C864&amp;ssl=1 1536w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-12.jpg?w=1664&amp;ssl=1 1664w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/engineswapdepot.com\/?attachment_id=62316\" rel=\"attachment wp-att-62316\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"62316\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=62316\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-13.jpg?fit=1664%2C936&amp;ssl=1\" data-orig-size=\"1664,936\" data-comments-opened=\"1\" data-image-title=\"1981 Firebird Trans Am with a twin-turbo LS9 V8 13\" data-image-description=\"&lt;p&gt;1981 Firebird Trans Am with a twin-turbo LS9 V8&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-13.jpg?fit=1200%2C675&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-13.jpg?resize=600%2C338&#038;ssl=1\" alt=\"1981 Firebird Trans Am with a twin-turbo LS9 V8\" width=\"600\" height=\"338\" class=\"alignnone size-medium wp-image-62316\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-13.jpg?resize=600%2C338&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-13.jpg?resize=1200%2C675&amp;ssl=1 1200w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-13.jpg?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-13.jpg?resize=1536%2C864&amp;ssl=1 1536w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-13.jpg?w=1664&amp;ssl=1 1664w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/engineswapdepot.com\/?attachment_id=62317\" rel=\"attachment wp-att-62317\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"62317\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=62317\" 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srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-14.jpg?resize=600%2C338&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-14.jpg?resize=1200%2C675&amp;ssl=1 1200w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-14.jpg?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-14.jpg?resize=1536%2C864&amp;ssl=1 1536w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-14.jpg?w=1664&amp;ssl=1 1664w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/engineswapdepot.com\/?attachment_id=62318\" rel=\"attachment wp-att-62318\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"62318\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=62318\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-15.jpg?fit=1664%2C936&amp;ssl=1\" data-orig-size=\"1664,936\" data-comments-opened=\"1\" data-image-title=\"1981 Firebird Trans Am with a twin-turbo LS9 V8 15\" data-image-description=\"&lt;p&gt;1981 Firebird Trans Am with a twin-turbo LS9 V8&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-15.jpg?fit=1200%2C675&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-15.jpg?resize=600%2C338&#038;ssl=1\" alt=\"1981 Firebird Trans Am with a twin-turbo LS9 V8\" width=\"600\" height=\"338\" class=\"alignnone size-medium wp-image-62318\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-15.jpg?resize=600%2C338&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-15.jpg?resize=1200%2C675&amp;ssl=1 1200w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-15.jpg?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-15.jpg?resize=1536%2C864&amp;ssl=1 1536w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-15.jpg?w=1664&amp;ssl=1 1664w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/engineswapdepot.com\/?attachment_id=62319\" rel=\"attachment wp-att-62319\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"62319\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=62319\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-16.jpg?fit=1664%2C936&amp;ssl=1\" data-orig-size=\"1664,936\" data-comments-opened=\"1\" data-image-title=\"1981 Firebird Trans Am with a twin-turbo LS9 V8 16\" data-image-description=\"&lt;p&gt;1981 Firebird Trans Am with a twin-turbo LS9 V8&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-16.jpg?fit=1200%2C675&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-16.jpg?resize=600%2C338&#038;ssl=1\" alt=\"1981 Firebird Trans Am with a twin-turbo LS9 V8\" width=\"600\" height=\"338\" class=\"alignnone size-medium wp-image-62319\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-16.jpg?resize=600%2C338&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-16.jpg?resize=1200%2C675&amp;ssl=1 1200w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-16.jpg?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-16.jpg?resize=1536%2C864&amp;ssl=1 1536w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-16.jpg?w=1664&amp;ssl=1 1664w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/engineswapdepot.com\/?attachment_id=62320\" rel=\"attachment wp-att-62320\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"62320\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=62320\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-17.jpg?fit=1664%2C936&amp;ssl=1\" data-orig-size=\"1664,936\" data-comments-opened=\"1\" data-image-title=\"1981 Firebird Trans Am with a twin-turbo LS9 V8 17\" data-image-description=\"&lt;p&gt;1981 Firebird Trans Am with a twin-turbo LS9 V8&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-17.jpg?fit=1200%2C675&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-17.jpg?resize=600%2C338&#038;ssl=1\" alt=\"1981 Firebird Trans Am with a twin-turbo LS9 V8\" width=\"600\" height=\"338\" class=\"alignnone size-medium wp-image-62320\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-17.jpg?resize=600%2C338&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-17.jpg?resize=1200%2C675&amp;ssl=1 1200w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-17.jpg?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-17.jpg?resize=1536%2C864&amp;ssl=1 1536w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-17.jpg?w=1664&amp;ssl=1 1664w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/engineswapdepot.com\/?attachment_id=62321\" rel=\"attachment wp-att-62321\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"62321\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=62321\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-18.jpg?fit=1664%2C936&amp;ssl=1\" data-orig-size=\"1664,936\" data-comments-opened=\"1\" data-image-title=\"1981 Firebird Trans Am with a twin-turbo LS9 V8 18\" data-image-description=\"&lt;p&gt;1981 Firebird Trans Am with a twin-turbo LS9 V8&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-18.jpg?fit=1200%2C675&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-18.jpg?resize=600%2C338&#038;ssl=1\" alt=\"1981 Firebird Trans Am with a twin-turbo LS9 V8\" width=\"600\" height=\"338\" class=\"alignnone size-medium wp-image-62321\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-18.jpg?resize=600%2C338&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-18.jpg?resize=1200%2C675&amp;ssl=1 1200w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-18.jpg?resize=768%2C432&amp;ssl=1 768w, 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with a twin-turbo LS9 V8&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-19.jpg?fit=1200%2C675&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-19.jpg?resize=600%2C338&#038;ssl=1\" alt=\"1981 Firebird Trans Am with a twin-turbo LS9 V8\" width=\"600\" height=\"338\" class=\"alignnone size-medium wp-image-62322\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-19.jpg?resize=600%2C338&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-19.jpg?resize=1200%2C675&amp;ssl=1 1200w, 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data-orig-size=\"1664,936\" data-comments-opened=\"1\" data-image-title=\"1981 Firebird Trans Am with a twin-turbo LS9 V8 20\" data-image-description=\"&lt;p&gt;1981 Firebird Trans Am with a twin-turbo LS9 V8&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-20.jpg?fit=1200%2C675&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-20.jpg?resize=600%2C338&#038;ssl=1\" alt=\"1981 Firebird Trans Am with a twin-turbo LS9 V8\" width=\"600\" height=\"338\" class=\"alignnone size-medium wp-image-62323\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-20.jpg?resize=600%2C338&amp;ssl=1 600w, 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data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-21.jpg?fit=1664%2C936&amp;ssl=1\" data-orig-size=\"1664,936\" data-comments-opened=\"1\" data-image-title=\"1981 Firebird Trans Am with a twin-turbo LS9 V8 21\" data-image-description=\"&lt;p&gt;1981 Firebird Trans Am with a twin-turbo LS9 V8&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-21.jpg?fit=1200%2C675&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-21.jpg?resize=600%2C338&#038;ssl=1\" alt=\"1981 Firebird Trans Am with a twin-turbo LS9 V8\" width=\"600\" height=\"338\" class=\"alignnone size-medium wp-image-62324\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-21.jpg?resize=600%2C338&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-21.jpg?resize=1200%2C675&amp;ssl=1 1200w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-21.jpg?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-21.jpg?resize=1536%2C864&amp;ssl=1 1536w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-21.jpg?w=1664&amp;ssl=1 1664w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><iframe loading=\"lazy\" width=\"600\" height=\"338\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/113BP71gOn0\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p>Source: <a href=\"https:\/\/www.mecum.com\/lots\/DA0920-420150\/1981-pontiac-turbo-trans-am-resto-mod\/\">Mecum<\/a> and <a href=\"https:\/\/www.schwartzperformance.com\/project\/1981-pontiac-trans-am-tt-ls9\/\">Schwartz Performance<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This 1981 Firebird Trans Am will be auctioned at Mecum in Dallas, Texas on October 15-17. The car is called &#8220;Full Force Trans Am&#8221; and was built by Schwartz Performance in Woodstock, Illinois with an estimated cost of $300,000. Under the hood sits a twin-turbo 6.9 L LS9 V8 capable of 1,300 horsepower. The motor&hellip;&nbsp;<a href=\"https:\/\/engineswapdepot.com\/?p=62302\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">For Sale: 1981 Firebird Trans Am with a Twin-Turbo LS9 V8<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":62313,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"off","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[177],"tags":[],"class_list":["post-62302","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-firebird"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/10\/1981-Firebird-Trans-Am-with-a-twin-turbo-LS9-V8-10.jpg?fit=1664%2C936&ssl=1","jetpack-related-posts":[{"id":8655,"url":"https:\/\/engineswapdepot.com\/?p=8655","url_meta":{"origin":62302,"position":0},"title":"1981 Firebird Trans Am with a Twin-Turbo LS9","author":"swaptastic","date":"December 24, 2015","format":false,"excerpt":"When this 1981 Pontiac Firebird Trans Am rolled out of the factory it was sporting a 301 ci (4.9 L) turbocharged V8. Schwartz Performance has since turned it into a pro-touring machine along with increasing the displacement and adding another turbo. Schwartz started by upgrading the foundation with one of\u2026","rel":"","context":"In &quot;Firebird&quot;","block_context":{"text":"Firebird","link":"https:\/\/engineswapdepot.com\/?cat=177"},"img":{"alt_text":"1981 Firebird Trans Am with a Twin-turbo LS9","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/12\/1981-Firebird-Trans-Am-with-a-Twin-turbo-LS9-01.jpg?fit=800%2C600&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/12\/1981-Firebird-Trans-Am-with-a-Twin-turbo-LS9-01.jpg?fit=800%2C600&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/12\/1981-Firebird-Trans-Am-with-a-Twin-turbo-LS9-01.jpg?fit=800%2C600&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/12\/1981-Firebird-Trans-Am-with-a-Twin-turbo-LS9-01.jpg?fit=800%2C600&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":108767,"url":"https:\/\/engineswapdepot.com\/?p=108767","url_meta":{"origin":62302,"position":1},"title":"1990 Chevy 454SS with a Supercharged LS9","author":"swaptastic","date":"December 13, 2023","format":false,"excerpt":"This 1990 Chevrolet 454SS truck visited Lethal Performance in 2019 for a supercharged 6.2 L LS9 V8 making 638 hp and 604 lb-ft of torque. Several years later it visited Level 7 Motorsports (L7M) for the next phase of upgrades. L7M started with boxing the frame and installing several braces.\u2026","rel":"","context":"In &quot;C\/K&quot;","block_context":{"text":"C\/K","link":"https:\/\/engineswapdepot.com\/?cat=436"},"img":{"alt_text":"1990 Chevy 454SS with a LS9 V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/12\/1990-Chevy-454SS-with-a-LS9-V8-01.jpg?fit=1200%2C900&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/12\/1990-Chevy-454SS-with-a-LS9-V8-01.jpg?fit=1200%2C900&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/12\/1990-Chevy-454SS-with-a-LS9-V8-01.jpg?fit=1200%2C900&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/12\/1990-Chevy-454SS-with-a-LS9-V8-01.jpg?fit=1200%2C900&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/12\/1990-Chevy-454SS-with-a-LS9-V8-01.jpg?fit=1200%2C900&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":101120,"url":"https:\/\/engineswapdepot.com\/?p=101120","url_meta":{"origin":62302,"position":2},"title":"1955 Chevy with a Supercharged LS9","author":"swaptastic","date":"June 6, 2023","format":false,"excerpt":"Lingenfelter builds very powerful motors. This 1955 Chevy rolled out of the company's garage with their Eliminator Spec LS9 V8. The 377 ci (6.17 L) motor uses a Callies LS9 crank, Lingenfelter GT14 camshaft (223\/235), Lingenfelter ported heads, and a Magnuson TVS 2650 supercharger. It made 915 horsepower and 736\u2026","rel":"","context":"In &quot;Tri-Five&quot;","block_context":{"text":"Tri-Five","link":"https:\/\/engineswapdepot.com\/?cat=803"},"img":{"alt_text":"1955 Chevy with a Supercharged LS9 V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/06\/1955-Chevy-with-a-Supercharged-LS9-V8-01.jpg?fit=1200%2C801&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/06\/1955-Chevy-with-a-Supercharged-LS9-V8-01.jpg?fit=1200%2C801&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/06\/1955-Chevy-with-a-Supercharged-LS9-V8-01.jpg?fit=1200%2C801&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/06\/1955-Chevy-with-a-Supercharged-LS9-V8-01.jpg?fit=1200%2C801&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/06\/1955-Chevy-with-a-Supercharged-LS9-V8-01.jpg?fit=1200%2C801&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":120952,"url":"https:\/\/engineswapdepot.com\/?p=120952","url_meta":{"origin":62302,"position":3},"title":"1971 Chevelle with a Supercharged LS9 V8","author":"swaptastic","date":"September 18, 2024","format":false,"excerpt":"Classic Car Studio spent many hours creating this 1971 Chevelle. The classic coupe is now powered by a supercharged 6.2 L LS9 V8 making 638 hp (469 kW) and 604 lb-ft (818 Nm) of torque. Exhaust is routed through a custom 2.5-inch stainless steel tubing and two Magnaflow mufflers. Behind\u2026","rel":"","context":"In &quot;Chevelle&quot;","block_context":{"text":"Chevelle","link":"https:\/\/engineswapdepot.com\/?cat=116"},"img":{"alt_text":"1971 Chevelle with a Supercharged LS9 V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/09\/1971-Chevelle-with-a-Supercharged-LS9-V8-01.jpg?fit=1000%2C667&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/09\/1971-Chevelle-with-a-Supercharged-LS9-V8-01.jpg?fit=1000%2C667&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/09\/1971-Chevelle-with-a-Supercharged-LS9-V8-01.jpg?fit=1000%2C667&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/09\/1971-Chevelle-with-a-Supercharged-LS9-V8-01.jpg?fit=1000%2C667&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":140312,"url":"https:\/\/engineswapdepot.com\/?p=140312","url_meta":{"origin":62302,"position":4},"title":"1966 Chevelle with a Supercharged LS9 V8","author":"swaptastic","date":"October 29, 2025","format":false,"excerpt":"Smithy Customs built this 1966 Chevelle in 2021 at their company in Houston, Texas. Under the hood window is a supercharged 6.2 L LS9 V8 sourced from a C6 Corvette ZR1. The motor features forged steel crank, forged titanium rods, forged aluminum pistons, A356-T6 heads, 2.3 L Eaton supercharger, and\u2026","rel":"","context":"In &quot;Chevelle&quot;","block_context":{"text":"Chevelle","link":"https:\/\/engineswapdepot.com\/?cat=116"},"img":{"alt_text":"1966 Chevelle with a Supercharged LS9 V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/10\/1966-Chevelle-with-a-Supercharged-LS9-V8-01.jpg?fit=1080%2C565&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/10\/1966-Chevelle-with-a-Supercharged-LS9-V8-01.jpg?fit=1080%2C565&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/10\/1966-Chevelle-with-a-Supercharged-LS9-V8-01.jpg?fit=1080%2C565&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/10\/1966-Chevelle-with-a-Supercharged-LS9-V8-01.jpg?fit=1080%2C565&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/10\/1966-Chevelle-with-a-Supercharged-LS9-V8-01.jpg?fit=1080%2C565&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":64374,"url":"https:\/\/engineswapdepot.com\/?p=64374","url_meta":{"origin":62302,"position":5},"title":"1979 Firebird Trans Am with a Twin-Turbo LSX","author":"swaptastic","date":"December 3, 2020","format":false,"excerpt":"This 1979 Pontiac Firebird Trans Am was built by Jessie's Performance in Fort Worth, Texas. The car is powered by a twin-turbo 427 ci LSX V8 making 1000 horsepower to the wheels on 15 psi of boost. The motor features Frankenstein Engine Dynamics heads and intake manifold, two Xona 76\u2026","rel":"","context":"In &quot;Firebird&quot;","block_context":{"text":"Firebird","link":"https:\/\/engineswapdepot.com\/?cat=177"},"img":{"alt_text":"1979 Firebird Trans Am with a Twin-Turbo LSX V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/12\/1979-Firebird-Trans-Am-with-a-Twin-Turbo-LSX-V8-01.jpg?fit=960%2C720&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/12\/1979-Firebird-Trans-Am-with-a-Twin-Turbo-LSX-V8-01.jpg?fit=960%2C720&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/12\/1979-Firebird-Trans-Am-with-a-Twin-Turbo-LSX-V8-01.jpg?fit=960%2C720&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/12\/1979-Firebird-Trans-Am-with-a-Twin-Turbo-LSX-V8-01.jpg?fit=960%2C720&ssl=1&resize=700%2C400 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/62302","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=62302"}],"version-history":[{"count":10,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/62302\/revisions"}],"predecessor-version":[{"id":62327,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/62302\/revisions\/62327"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/media\/62313"}],"wp:attachment":[{"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=62302"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=62302"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=62302"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}