{"id":94467,"date":"2023-01-05T06:00:44","date_gmt":"2023-01-05T12:00:44","guid":{"rendered":"https:\/\/engineswapdepot.com\/?p=94467"},"modified":"2023-01-05T00:43:19","modified_gmt":"2023-01-05T06:43:19","slug":"1973-pontiac-firebird-with-a-ls1-v8","status":"publish","type":"post","link":"https:\/\/engineswapdepot.com\/?p=94467","title":{"rendered":"1973 Pontiac Firebird with a LS1 V8"},"content":{"rendered":"<p><a href=\"https:\/\/engineswapdepot.com\/?attachment_id=94473\" rel=\"attachment wp-att-94473\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"94473\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=94473\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-01.jpeg?fit=2200%2C2223&amp;ssl=1\" data-orig-size=\"2200,2223\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"1973 Pontiac Firebird with a LS1 V8 01\" data-image-description=\"&lt;p&gt;1973 Pontiac Firebird with a LS1 V8&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-01.jpeg?fit=1188%2C1200&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-01.jpeg?resize=600%2C606&#038;ssl=1\" alt=\"1973 Pontiac Firebird with a LS1 V8\" width=\"600\" height=\"606\" class=\"alignnone size-medium wp-image-94473\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-01.jpeg?resize=600%2C606&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-01.jpeg?resize=1188%2C1200&amp;ssl=1 1188w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-01.jpeg?resize=768%2C776&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-01.jpeg?resize=1520%2C1536&amp;ssl=1 1520w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-01.jpeg?resize=2027%2C2048&amp;ssl=1 2027w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p>This 1973 Pontiac Firebird visited <a href=\"https:\/\/allspeedcustoms.com\/builds\/1973-pontiac-firebird-1798424\">All Speed Customs<\/a> for a complete rebuild. In the engine bay the company installed a 5.7 L LS1 V8 with an upgraded Comp camshaft resulting in 500 horsepower. Behind the V8 sits a TR6060 Magnum six-speed manual transmission sending power to a Moser 12-bolt rear end with 3.55 gears. Underneath they installed Ridetech&#8217;s Strongarm coilover front suspension and their 4-link coilover rear suspension. The car stops thanks to Wilwood six-piston disc brakes in front and four-piston disc brakes in rear. The interior features Corbeau seats refinished in leather, Dakota Digital gauges, Vintage AC system, and a Ididit steering column. <\/p>\n<p><a href=\"https:\/\/engineswapdepot.com\/?attachment_id=94474\" rel=\"attachment wp-att-94474\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"94474\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=94474\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-02.jpg?fit=1440%2C1800&amp;ssl=1\" data-orig-size=\"1440,1800\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"1973 Pontiac Firebird with a LS1 V8 02\" data-image-description=\"&lt;p&gt;1973 Pontiac Firebird with a LS1 V8&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-02.jpg?fit=960%2C1200&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-02.jpg?resize=600%2C750&#038;ssl=1\" alt=\"1973 Pontiac Firebird with a LS1 V8\" width=\"600\" height=\"750\" class=\"alignnone size-medium wp-image-94474\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-02.jpg?resize=600%2C750&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-02.jpg?resize=960%2C1200&amp;ssl=1 960w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-02.jpg?resize=768%2C960&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-02.jpg?resize=1229%2C1536&amp;ssl=1 1229w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-02.jpg?w=1440&amp;ssl=1 1440w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/engineswapdepot.com\/?attachment_id=94475\" rel=\"attachment wp-att-94475\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"94475\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=94475\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-03.jpg?fit=2200%2C1650&amp;ssl=1\" data-orig-size=\"2200,1650\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"1973 Pontiac Firebird with a LS1 V8 03\" data-image-description=\"&lt;p&gt;1973 Pontiac Firebird with a LS1 V8&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-03.jpg?fit=1200%2C900&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-03-600x450.jpg?resize=600%2C450&#038;ssl=1\" alt=\"1973 Pontiac Firebird with a LS1 V8\" width=\"600\" height=\"450\" class=\"alignnone size-medium wp-image-94475\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-03.jpg?resize=600%2C450&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-03.jpg?resize=1200%2C900&amp;ssl=1 1200w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-03.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-03.jpg?resize=1536%2C1152&amp;ssl=1 1536w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-03.jpg?resize=2048%2C1536&amp;ssl=1 2048w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/engineswapdepot.com\/?attachment_id=94476\" rel=\"attachment wp-att-94476\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"94476\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=94476\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-04.jpeg?fit=2200%2C1650&amp;ssl=1\" data-orig-size=\"2200,1650\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"1973 Pontiac Firebird with a LS1 V8 04\" data-image-description=\"&lt;p&gt;1973 Pontiac Firebird with a LS1 V8&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-04.jpeg?fit=1200%2C900&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-04-600x450.jpeg?resize=600%2C450&#038;ssl=1\" alt=\"1973 Pontiac Firebird with a LS1 V8\" width=\"600\" height=\"450\" class=\"alignnone size-medium wp-image-94476\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-04.jpeg?resize=600%2C450&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-04.jpeg?resize=1200%2C900&amp;ssl=1 1200w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-04.jpeg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-04.jpeg?resize=1536%2C1152&amp;ssl=1 1536w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-04.jpeg?resize=2048%2C1536&amp;ssl=1 2048w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/engineswapdepot.com\/?attachment_id=94477\" rel=\"attachment wp-att-94477\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"94477\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=94477\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-05.jpg?fit=2200%2C1650&amp;ssl=1\" data-orig-size=\"2200,1650\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"1973 Pontiac Firebird with a LS1 V8 05\" data-image-description=\"&lt;p&gt;1973 Pontiac Firebird with a LS1 V8&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-05.jpg?fit=1200%2C900&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-05-600x450.jpg?resize=600%2C450&#038;ssl=1\" alt=\"1973 Pontiac Firebird with a LS1 V8\" width=\"600\" height=\"450\" class=\"alignnone size-medium wp-image-94477\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-05.jpg?resize=600%2C450&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-05.jpg?resize=1200%2C900&amp;ssl=1 1200w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-05.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-05.jpg?resize=1536%2C1152&amp;ssl=1 1536w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-05.jpg?resize=2048%2C1536&amp;ssl=1 2048w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/engineswapdepot.com\/?attachment_id=94478\" rel=\"attachment wp-att-94478\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"94478\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=94478\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-06.jpg?fit=2200%2C1650&amp;ssl=1\" data-orig-size=\"2200,1650\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"1973 Pontiac Firebird with a LS1 V8 06\" data-image-description=\"&lt;p&gt;1973 Pontiac Firebird with a LS1 V8&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-06.jpg?fit=1200%2C900&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-06-600x450.jpg?resize=600%2C450&#038;ssl=1\" alt=\"1973 Pontiac Firebird with a LS1 V8\" width=\"600\" height=\"450\" class=\"alignnone size-medium wp-image-94478\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-06.jpg?resize=600%2C450&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-06.jpg?resize=1200%2C900&amp;ssl=1 1200w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-06.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-06.jpg?resize=1536%2C1152&amp;ssl=1 1536w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-06.jpg?resize=2048%2C1536&amp;ssl=1 2048w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/engineswapdepot.com\/?attachment_id=94479\" rel=\"attachment wp-att-94479\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"94479\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=94479\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-07.jpg?fit=2200%2C1650&amp;ssl=1\" data-orig-size=\"2200,1650\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"1973 Pontiac Firebird with a LS1 V8 07\" data-image-description=\"&lt;p&gt;1973 Pontiac Firebird with a LS1 V8&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-07.jpg?fit=1200%2C900&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-07-600x450.jpg?resize=600%2C450&#038;ssl=1\" alt=\"1973 Pontiac Firebird with a LS1 V8\" width=\"600\" height=\"450\" class=\"alignnone size-medium wp-image-94479\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-07.jpg?resize=600%2C450&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-07.jpg?resize=1200%2C900&amp;ssl=1 1200w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-07.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-07.jpg?resize=1536%2C1152&amp;ssl=1 1536w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-07.jpg?resize=2048%2C1536&amp;ssl=1 2048w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/engineswapdepot.com\/?attachment_id=94480\" rel=\"attachment wp-att-94480\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"94480\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=94480\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-08.jpg?fit=1440%2C1800&amp;ssl=1\" data-orig-size=\"1440,1800\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"1973 Pontiac Firebird with a LS1 V8 08\" data-image-description=\"&lt;p&gt;1973 Pontiac Firebird with a LS1 V8&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-08.jpg?fit=960%2C1200&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-08.jpg?resize=600%2C750&#038;ssl=1\" alt=\"1973 Pontiac Firebird with a LS1 V8\" width=\"600\" height=\"750\" class=\"alignnone size-medium wp-image-94480\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-08.jpg?resize=600%2C750&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-08.jpg?resize=960%2C1200&amp;ssl=1 960w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-08.jpg?resize=768%2C960&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-08.jpg?resize=1229%2C1536&amp;ssl=1 1229w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-08.jpg?w=1440&amp;ssl=1 1440w\" 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\/_ES-8O0oYZ0\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/p>\n<p>Source: <a href=\"https:\/\/allspeedcustoms.com\/builds\/1973-pontiac-firebird-1798424\">All Speed Customs<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This 1973 Pontiac Firebird visited All Speed Customs for a complete rebuild. In the engine bay the company installed a 5.7 L LS1 V8 with an upgraded Comp camshaft resulting in 500 horsepower. Behind the V8 sits a TR6060 Magnum six-speed manual transmission sending power to a Moser 12-bolt rear end with 3.55 gears. Underneath&hellip;&nbsp;<a href=\"https:\/\/engineswapdepot.com\/?p=94467\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">1973 Pontiac Firebird with a LS1 V8<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":94473,"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":70,"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_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[177],"tags":[],"class_list":["post-94467","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\/2023\/01\/1973-Pontiac-Firebird-with-a-LS1-V8-01.jpeg?fit=2200%2C2223&ssl=1","jetpack-related-posts":[{"id":108209,"url":"https:\/\/engineswapdepot.com\/?p=108209","url_meta":{"origin":94467,"position":0},"title":"Pontiac Firebird with a LS7 V8","author":"swaptastic","date":"November 29, 2023","format":false,"excerpt":"Hawks Motorsports rebuilt this third-gen Pontiac Firebird as a Stage 2 Firehawk at their company in Easley, South Carolina. Under the custom carbon fiber hood they swapped a 7.0 L LS7 V8 featuring Mamo ported heads, Hawks Motorsport camshaft, longtube headers, and custom stainless steel exhaust. The naturally aspirated motor\u2026","rel":"","context":"In &quot;Firebird&quot;","block_context":{"text":"Firebird","link":"https:\/\/engineswapdepot.com\/?cat=177"},"img":{"alt_text":"Pontiac Firebird with a LS7 V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/11\/Pontiac-Firebird-with-a-LS7-V8-01.jpg?fit=772%2C514&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/11\/Pontiac-Firebird-with-a-LS7-V8-01.jpg?fit=772%2C514&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/11\/Pontiac-Firebird-with-a-LS7-V8-01.jpg?fit=772%2C514&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/11\/Pontiac-Firebird-with-a-LS7-V8-01.jpg?fit=772%2C514&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":120485,"url":"https:\/\/engineswapdepot.com\/?p=120485","url_meta":{"origin":94467,"position":1},"title":"1971 Firebird with a LS7 V8","author":"swaptastic","date":"September 6, 2024","format":false,"excerpt":"Deb Hall sent a 1971 Pontiac Firebird to Detroit Speed for a transformation. The company logged many hours working on the appearance and upgrading performance. The result is a pro-touring showpiece. The company started by installing new steel quarter-panels, fenders, radiator core support and carbon fiber nose, hood, and trunk\u2026","rel":"","context":"In &quot;Firebird&quot;","block_context":{"text":"Firebird","link":"https:\/\/engineswapdepot.com\/?cat=177"},"img":{"alt_text":"1971 Pontiac Firebird with a LS7 V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/09\/1971-Pontiac-Firebird-with-a-LS7-V8-01.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/09\/1971-Pontiac-Firebird-with-a-LS7-V8-01.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/09\/1971-Pontiac-Firebird-with-a-LS7-V8-01.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/09\/1971-Pontiac-Firebird-with-a-LS7-V8-01.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/09\/1971-Pontiac-Firebird-with-a-LS7-V8-01.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":147356,"url":"https:\/\/engineswapdepot.com\/?p=147356","url_meta":{"origin":94467,"position":2},"title":"1978 Pontiac Trans Am with a LS3 V8","author":"swaptastic","date":"April 8, 2026","format":false,"excerpt":"V8 Speed & Resto in Red Bud, Illinois was tasked with upgrading the performance in this 1978 Pontiac Firebird Trans Am. The company performed an engine swap and paired that with a modern drivetrain and suspension. The Trans Am's new heart is a 6.2 L LS3 V8 crate motor capable\u2026","rel":"","context":"In &quot;Firebird&quot;","block_context":{"text":"Firebird","link":"https:\/\/engineswapdepot.com\/?cat=177"},"img":{"alt_text":"silver 1978 Pontiac Trans Am with a LS3 V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2026\/04\/1978-Pontiac-Trans-Am-with-a-LS3-V8-and-4L70-01.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2026\/04\/1978-Pontiac-Trans-Am-with-a-LS3-V8-and-4L70-01.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2026\/04\/1978-Pontiac-Trans-Am-with-a-LS3-V8-and-4L70-01.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2026\/04\/1978-Pontiac-Trans-Am-with-a-LS3-V8-and-4L70-01.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2026\/04\/1978-Pontiac-Trans-Am-with-a-LS3-V8-and-4L70-01.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":116558,"url":"https:\/\/engineswapdepot.com\/?p=116558","url_meta":{"origin":94467,"position":3},"title":"1969 Firebird with a 1400 hp Twin-Turbo 482 ci Pontiac V8","author":"swaptastic","date":"June 5, 2024","format":false,"excerpt":"Troy Gudgel and his company BBT Fabrications in Mahomet, Illinois invested many hours building Brad Sather's 1969 Pontiac Firebird. In the engine bay is a twin-turbo 482 ci Pontiac V8 built by Butler Performance in Lawrenceburg, Tennessee sitting six inches further back. The all-aluminum motor features an IA-II block, forged\u2026","rel":"","context":"In &quot;Firebird&quot;","block_context":{"text":"Firebird","link":"https:\/\/engineswapdepot.com\/?cat=177"},"img":{"alt_text":"1969 Firebird with a twin-turbo Pontiac V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/06\/1969-Firebird-with-a-twin-turbo-Pontiac-V8-01.jpg?fit=813%2C655&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/06\/1969-Firebird-with-a-twin-turbo-Pontiac-V8-01.jpg?fit=813%2C655&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/06\/1969-Firebird-with-a-twin-turbo-Pontiac-V8-01.jpg?fit=813%2C655&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/06\/1969-Firebird-with-a-twin-turbo-Pontiac-V8-01.jpg?fit=813%2C655&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":115891,"url":"https:\/\/engineswapdepot.com\/?p=115891","url_meta":{"origin":94467,"position":4},"title":"1977 Trans Am with a 530 hp LS3 V8","author":"swaptastic","date":"May 24, 2024","format":false,"excerpt":"The owner of this 1977 Pontiac Trans Am wanted improved performance and handling. So they turned to Kevin Oeste's company V8 Speed & Resto for their expertise in upgrading classic muscle cars. The project started with removing the carbureted V8 and automatic transmission. 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Under the hood sits a supercharged LT4 V8 producing 720 horsepower and 730 lb-ft of torque thanks to Lingenfelter Performance's pulley kit and custom tune. A Tremec TR-6060 six-speed manual transmission sends power to a\u2026","rel":"","context":"In &quot;Firebird&quot;","block_context":{"text":"Firebird","link":"https:\/\/engineswapdepot.com\/?cat=177"},"img":{"alt_text":"1980 Pontiac Firebird with a supercharged LT4 V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/07\/1980-Pontiac-Firebird-with-a-supercharged-LT4-V8-01.jpg?fit=1200%2C857&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/07\/1980-Pontiac-Firebird-with-a-supercharged-LT4-V8-01.jpg?fit=1200%2C857&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/07\/1980-Pontiac-Firebird-with-a-supercharged-LT4-V8-01.jpg?fit=1200%2C857&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/07\/1980-Pontiac-Firebird-with-a-supercharged-LT4-V8-01.jpg?fit=1200%2C857&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/07\/1980-Pontiac-Firebird-with-a-supercharged-LT4-V8-01.jpg?fit=1200%2C857&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/94467","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=94467"}],"version-history":[{"count":6,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/94467\/revisions"}],"predecessor-version":[{"id":94481,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/94467\/revisions\/94481"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/media\/94473"}],"wp:attachment":[{"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=94467"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=94467"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=94467"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}