{"id":75435,"date":"2021-08-11T18:37:05","date_gmt":"2021-08-11T23:37:05","guid":{"rendered":"https:\/\/engineswapdepot.com\/?p=75435"},"modified":"2021-08-11T23:27:35","modified_gmt":"2021-08-12T04:27:35","slug":"1979-trans-am-with-a-compound-turbo-lsx-v8","status":"publish","type":"post","link":"https:\/\/engineswapdepot.com\/?p=75435","title":{"rendered":"1979 Pontiac Trans Am with a Compound Turbo 5.3 L LSx V8"},"content":{"rendered":"<p><a href=\"https:\/\/engineswapdepot.com\/?attachment_id=75442\" rel=\"attachment wp-att-75442\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"75442\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=75442\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-01.jpg?fit=2400%2C1600&amp;ssl=1\" data-orig-size=\"2400,1600\" 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=\"1979 Pontiac Firebird Trans Am with a compound turbo LSx V8 01\" data-image-description=\"&lt;p&gt;1979 Pontiac Firebird Trans Am with a compound turbo LSx V8&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-01.jpg?fit=1200%2C800&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-01.jpg?resize=600%2C400&#038;ssl=1\" alt=\"1979 Pontiac Firebird Trans Am with a compound turbo LSx V8\" width=\"600\" height=\"400\" class=\"alignnone size-medium wp-image-75442\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-01.jpg?resize=600%2C400&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-01.jpg?resize=1200%2C800&amp;ssl=1 1200w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-01.jpg?resize=768%2C512&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-01.jpg?resize=1536%2C1024&amp;ssl=1 1536w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-01.jpg?resize=2048%2C1365&amp;ssl=1 2048w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-01.jpg?resize=930%2C620&amp;ssl=1 930w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-01.jpg?w=2400&amp;ssl=1 2400w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p>This 1979 <a href=\"https:\/\/www.holley.com\/blog\/post\/this_ls-swapped_compound_turbocharged_trans_am_is_an_exercise_in_home-fabbed_ingenuity\/\">Pontiac Firebird Trans Am<\/a> was built by owner Timothy Ball from Peyton, Colorado. The car was powered by a 400 ci V8 installed by a previous owner. Timothy estimated it would cost more money rebuilding the 400 ci V8 to reach his power goal than going with a LSx V8. The Trans Am is now powered by a compound turbocharged 5.3 L LSx (Gen 4) V8 making around 600 horsepower. The motor features a GT45 turbocharger, hybrid T3\/T4 turbocharger, air-to-air intercooler, decapped E85 injectors, and <a href=\"https:\/\/www.holley.com\/brands\/holley_efi\/products\/fuel_systems\/fuel_injection\/terminator_x\/terminator_x_and_x_max_ls_kits\/\">Holley Terminator X ECU<\/a>. Timothy is building another 6.0 L LSx V8 with upgraded internals to replace the 5.3 L V8. <\/p>\n<p><iframe loading=\"lazy\" width=\"600\" height=\"338\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/bcCxeAT2b88\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p><a href=\"https:\/\/engineswapdepot.com\/?attachment_id=75443\" rel=\"attachment wp-att-75443\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"75443\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=75443\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-02.jpg?fit=2400%2C1600&amp;ssl=1\" data-orig-size=\"2400,1600\" 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=\"1979 Pontiac Firebird Trans Am with a compound turbo LSx V8 02\" data-image-description=\"&lt;p&gt;1979 Pontiac Firebird Trans Am with a compound turbo LSx V8&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-02.jpg?fit=1200%2C800&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-02.jpg?resize=600%2C400&#038;ssl=1\" alt=\"1979 Pontiac Firebird Trans Am with a compound turbo LSx V8\" width=\"600\" height=\"400\" class=\"alignnone size-medium wp-image-75443\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-02.jpg?resize=600%2C400&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-02.jpg?resize=1200%2C800&amp;ssl=1 1200w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-02.jpg?resize=768%2C512&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-02.jpg?resize=1536%2C1024&amp;ssl=1 1536w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-02.jpg?resize=2048%2C1365&amp;ssl=1 2048w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-02.jpg?resize=930%2C620&amp;ssl=1 930w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-02.jpg?w=2400&amp;ssl=1 2400w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/engineswapdepot.com\/?attachment_id=75444\" rel=\"attachment wp-att-75444\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"75444\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=75444\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-03.jpg?fit=2400%2C1600&amp;ssl=1\" data-orig-size=\"2400,1600\" 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=\"1979 Pontiac Firebird Trans Am with a compound turbo LSx V8 03\" data-image-description=\"&lt;p&gt;1979 Pontiac Firebird Trans Am with a compound turbo LSx V8&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-03.jpg?fit=1200%2C800&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-03.jpg?resize=600%2C400&#038;ssl=1\" alt=\"1979 Pontiac Firebird Trans Am with a compound turbo LSx V8\" width=\"600\" height=\"400\" class=\"alignnone size-medium wp-image-75444\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-03.jpg?resize=600%2C400&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-03.jpg?resize=1200%2C800&amp;ssl=1 1200w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-03.jpg?resize=768%2C512&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-03.jpg?resize=1536%2C1024&amp;ssl=1 1536w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-03.jpg?resize=2048%2C1365&amp;ssl=1 2048w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-03.jpg?resize=930%2C620&amp;ssl=1 930w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-03.jpg?w=2400&amp;ssl=1 2400w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p>Source: <a href=\"https:\/\/www.holley.com\/blog\/post\/this_ls-swapped_compound_turbocharged_trans_am_is_an_exercise_in_home-fabbed_ingenuity\/\">Holley<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This 1979 Pontiac Firebird Trans Am was built by owner Timothy Ball from Peyton, Colorado. The car was powered by a 400 ci V8 installed by a previous owner. Timothy estimated it would cost more money rebuilding the 400 ci V8 to reach his power goal than going with a LSx V8. The Trans Am&hellip;&nbsp;<a href=\"https:\/\/engineswapdepot.com\/?p=75435\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">1979 Pontiac Trans Am with a Compound Turbo 5.3 L LSx V8<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":75442,"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_post_was_ever_published":false,"_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":""},"categories":[177],"tags":[],"class_list":["post-75435","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\/2021\/08\/1979-Pontiac-Firebird-Trans-Am-with-a-compound-turbo-LSx-V8-01.jpg?fit=2400%2C1600&ssl=1","jetpack-related-posts":[{"id":114858,"url":"https:\/\/engineswapdepot.com\/?p=114858","url_meta":{"origin":75435,"position":0},"title":"Pontiac Trans Am with a 690 whp 468 ci V8","author":"swaptastic","date":"May 1, 2024","format":false,"excerpt":"Vengeance Racing was tasked with upgrading this fourth-generation Pontiac Trans Am for road racing. Under the hood they installed a 468 ci (7.6L) LSx V8 built by Late Model Engines sitting on a UMI Performance F-Body Road Race K-member. The motor features forged internals, Brodix BS7 ported six-bolt heads, LME\u2026","rel":"","context":"In &quot;Firebird&quot;","block_context":{"text":"Firebird","link":"https:\/\/engineswapdepot.com\/?cat=177"},"img":{"alt_text":"Pontiac Firebird Trans Am with a 468 ci LSx V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/04\/Pontiac-Firebird-Trans-Am-with-a-468-ci-LSx-V8-01.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/04\/Pontiac-Firebird-Trans-Am-with-a-468-ci-LSx-V8-01.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/04\/Pontiac-Firebird-Trans-Am-with-a-468-ci-LSx-V8-01.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/04\/Pontiac-Firebird-Trans-Am-with-a-468-ci-LSx-V8-01.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/04\/Pontiac-Firebird-Trans-Am-with-a-468-ci-LSx-V8-01.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":64374,"url":"https:\/\/engineswapdepot.com\/?p=64374","url_meta":{"origin":75435,"position":1},"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":[]},{"id":141822,"url":"https:\/\/engineswapdepot.com\/?p=141822","url_meta":{"origin":75435,"position":2},"title":"1980 Trans Am with a ProCharged 6.7 L V8","author":"swaptastic","date":"December 5, 2025","format":false,"excerpt":"Johnson's Hot Rod Shop spent 10 weeks transforming this 1980 Trans Am Pace Car at their company in Gadsden, Alabama. Power is generated by a supercharged 6.7L LS1 V8 built by Automotive Specialists running on a Holley Dominator ECU. The motor features a ProCharger P-1X supercharger and their new water-to-air\u2026","rel":"","context":"In &quot;Firebird&quot;","block_context":{"text":"Firebird","link":"https:\/\/engineswapdepot.com\/?cat=177"},"img":{"alt_text":"1980 Pontiac Trans Am with a ProCharged 6.7 L LSx V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/12\/1980-Pontiac-Trans-Am-with-a-ProCharged-6.7-L-LSx-V8-01.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/12\/1980-Pontiac-Trans-Am-with-a-ProCharged-6.7-L-LSx-V8-01.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/12\/1980-Pontiac-Trans-Am-with-a-ProCharged-6.7-L-LSx-V8-01.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/12\/1980-Pontiac-Trans-Am-with-a-ProCharged-6.7-L-LSx-V8-01.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/12\/1980-Pontiac-Trans-Am-with-a-ProCharged-6.7-L-LSx-V8-01.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":29244,"url":"https:\/\/engineswapdepot.com\/?p=29244","url_meta":{"origin":75435,"position":3},"title":"1970 Pontiac Firebird Trans Am with a 10,000 rpm LSx V8","author":"swaptastic","date":"November 2, 2018","format":false,"excerpt":"Riley Stair spent the past two years creating a 1970 Pontiac Firebird Trans Am shell into part race car and part art piece. The car rides on a custom tube chassis with a custom independent pushrod suspension and \u00d6hlins coilovers. However the focus point of the car is the huge\u2026","rel":"","context":"In &quot;Firebird&quot;","block_context":{"text":"Firebird","link":"https:\/\/engineswapdepot.com\/?cat=177"},"img":{"alt_text":"1970 Pontiac Firebird Trans Am with a 400 ci LSx V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/11\/1970-Pontiac-Firebird-Trans-Am-with-a-400-ci-LSx-V8-01.jpg?fit=1080%2C721&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/11\/1970-Pontiac-Firebird-Trans-Am-with-a-400-ci-LSx-V8-01.jpg?fit=1080%2C721&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/11\/1970-Pontiac-Firebird-Trans-Am-with-a-400-ci-LSx-V8-01.jpg?fit=1080%2C721&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/11\/1970-Pontiac-Firebird-Trans-Am-with-a-400-ci-LSx-V8-01.jpg?fit=1080%2C721&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/11\/1970-Pontiac-Firebird-Trans-Am-with-a-400-ci-LSx-V8-01.jpg?fit=1080%2C721&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":29936,"url":"https:\/\/engineswapdepot.com\/?p=29936","url_meta":{"origin":75435,"position":4},"title":"Riley Stair&#8217;s 1970 Pontiac Firebird Project Explained","author":"swaptastic","date":"November 21, 2018","format":false,"excerpt":"Riley Stair really turned heads at SEMA this year with his very unique 1970 Pontiac Firebird. Sitting inside the engine bay is a 400 ci LSx V8 and equal length 8-to-1 headers. He hopes to get 1,000 horsepower out of the naturally-aspirated motor thanks to its 10,000 rpm limit. Hertrech\u2026","rel":"","context":"In &quot;Firebird&quot;","block_context":{"text":"Firebird","link":"https:\/\/engineswapdepot.com\/?cat=177"},"img":{"alt_text":"1970 Pontiac Firebird Trans Am with a 400 ci LSx V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/11\/1970-Pontiac-Firebird-Trans-Am-with-a-400-ci-LSx-V8-02.jpg?fit=837%2C1046&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/11\/1970-Pontiac-Firebird-Trans-Am-with-a-400-ci-LSx-V8-02.jpg?fit=837%2C1046&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/11\/1970-Pontiac-Firebird-Trans-Am-with-a-400-ci-LSx-V8-02.jpg?fit=837%2C1046&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/11\/1970-Pontiac-Firebird-Trans-Am-with-a-400-ci-LSx-V8-02.jpg?fit=837%2C1046&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":147356,"url":"https:\/\/engineswapdepot.com\/?p=147356","url_meta":{"origin":75435,"position":5},"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":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/75435","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=75435"}],"version-history":[{"count":11,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/75435\/revisions"}],"predecessor-version":[{"id":75449,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/75435\/revisions\/75449"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/media\/75442"}],"wp:attachment":[{"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=75435"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=75435"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=75435"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}