{"id":7728,"date":"2015-10-05T17:32:43","date_gmt":"2015-10-05T21:32:43","guid":{"rendered":"https:\/\/engineswapdepot.com\/?p=7728"},"modified":"2015-10-05T17:32:43","modified_gmt":"2015-10-05T21:32:43","slug":"viper-replica-with-a-twin-turbo-lsx","status":"publish","type":"post","link":"https:\/\/engineswapdepot.com\/?p=7728","title":{"rendered":"Viper Replica with a Twin-turbo LSx"},"content":{"rendered":"<p><a href=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-01.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"7742\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=7742\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-01.jpg?fit=1024%2C683&amp;ssl=1\" data-orig-size=\"1024,683\" data-comments-opened=\"1\" data-image-title=\"Hallenborg Twin-turbo LSx powered Orange Viper Replica 01\" data-image-description=\"&lt;p&gt;Hallenborg Twin-turbo 7.0 L LSx powered Orange Viper Replica&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-01.jpg?fit=1024%2C683&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-01.jpg?resize=640%2C427&#038;ssl=1\" alt=\"Hallenborg Twin-turbo 7.0 L LSx powered Orange Viper Replica\" width=\"640\" height=\"427\" class=\"alignnone size-large wp-image-7742\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-01.jpg?w=1024&amp;ssl=1 1024w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-01.jpg?resize=600%2C400&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-01.jpg?resize=300%2C200&amp;ssl=1 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>I came across this project over a year ago while researching for another article. I never planned on writing about it since it was completed many years ago but I saw it making the rounds again on social networks with incorrect information so maybe this will help a little.<\/p>\n<p><a href=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-02.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"7743\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=7743\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-02.jpg?fit=1024%2C683&amp;ssl=1\" data-orig-size=\"1024,683\" data-comments-opened=\"1\" data-image-title=\"Hallenborg Twin-turbo LSx powered Orange Viper Replica 02\" data-image-description=\"&lt;p&gt;Hallenborg Twin-turbo 7.0 L LSx powered Orange Viper Replica&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-02.jpg?fit=1024%2C683&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-02.jpg?resize=640%2C427&#038;ssl=1\" alt=\"Hallenborg Twin-turbo 7.0 L LSx powered Orange Viper Replica\" width=\"640\" height=\"427\" class=\"alignnone size-large wp-image-7743\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-02.jpg?w=1024&amp;ssl=1 1024w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-02.jpg?resize=600%2C400&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-02.jpg?resize=300%2C200&amp;ssl=1 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>Although this is an amazing project it is not an authentic Dodge Viper. It is an aftermarket fiberglass body over a Corvette C4 chassis. The project was built by Swedish builder Jonas Hallenborg. The engine has gone through a few iterations but the most recent is a twin-turbocharged 7.0 L LSx which produces 1048 horsepower to the wheels on 21 psi of boost and E85 fuel. You can find more photos and details of the build at the <a href=\"http:\/\/www.hallenborg.se\/proj_viper.html\">project&#8217;s homepage<\/a>.<\/p>\n<p><a href=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-03.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"7744\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=7744\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-03.jpg?fit=683%2C1024&amp;ssl=1\" data-orig-size=\"683,1024\" data-comments-opened=\"1\" data-image-title=\"Hallenborg Twin-turbo LSx powered Orange Viper Replica 03\" data-image-description=\"&lt;p&gt;Hallenborg Twin-turbo 7.0 L LSx powered Orange Viper Replica&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-03.jpg?fit=683%2C1024&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-03.jpg?resize=640%2C960&#038;ssl=1\" alt=\"Hallenborg Twin-turbo 7.0 L LSx powered Orange Viper Replica\" width=\"640\" height=\"960\" class=\"alignnone size-large wp-image-7744\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-03.jpg?w=683&amp;ssl=1 683w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-03.jpg?resize=600%2C900&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-03.jpg?resize=200%2C300&amp;ssl=1 200w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-04.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"7745\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=7745\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-04.jpg?fit=1024%2C683&amp;ssl=1\" data-orig-size=\"1024,683\" data-comments-opened=\"1\" data-image-title=\"Hallenborg Twin-turbo LSx powered Orange Viper Replica 04\" data-image-description=\"&lt;p&gt;Hallenborg Twin-turbo 7.0 L LSx powered Orange Viper Replica&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-04.jpg?fit=1024%2C683&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-04.jpg?resize=640%2C427&#038;ssl=1\" alt=\"Hallenborg Twin-turbo 7.0 L LSx powered Orange Viper Replica\" width=\"640\" height=\"427\" class=\"alignnone size-large wp-image-7745\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-04.jpg?w=1024&amp;ssl=1 1024w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-04.jpg?resize=600%2C400&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-04.jpg?resize=300%2C200&amp;ssl=1 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<div data-carousel-extra='{&quot;blog_id&quot;:1,&quot;permalink&quot;:&quot;https:\/\/engineswapdepot.com\/?p=7728&quot;}' id='gallery-1' class='gallery galleryid-7728 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-11.jpg?ssl=1\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-11.jpg?resize=150%2C150&amp;ssl=1\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Hallenborg Twin-turbo 7.0 L LSx powered Orange Viper Replica\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-11.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-11.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-11.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-11.jpg?zoom=3&amp;resize=150%2C150&amp;ssl=1 450w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" data-attachment-id=\"7751\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=7751\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-11.jpg?fit=640%2C480&amp;ssl=1\" data-orig-size=\"640,480\" data-comments-opened=\"1\" data-image-title=\"Hallenborg Twin-turbo LSx powered Orange Viper Replica 11\" data-image-description=\"&lt;p&gt;Hallenborg Twin-turbo 7.0 L LSx powered Orange Viper Replica&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-11.jpg?fit=640%2C480&amp;ssl=1\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-10.jpg?ssl=1\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-10.jpg?resize=150%2C150&amp;ssl=1\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Hallenborg Twin-turbo 7.0 L LSx powered Orange Viper Replica\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-10.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-10.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-10.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-10.jpg?zoom=3&amp;resize=150%2C150&amp;ssl=1 450w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" data-attachment-id=\"7750\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=7750\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-10.jpg?fit=592%2C444&amp;ssl=1\" data-orig-size=\"592,444\" data-comments-opened=\"1\" data-image-title=\"Hallenborg Twin-turbo LSx powered Orange Viper Replica 10\" data-image-description=\"&lt;p&gt;Hallenborg Twin-turbo 7.0 L LSx powered Orange Viper Replica&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-10.jpg?fit=592%2C444&amp;ssl=1\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-09.jpg?ssl=1\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-09.jpg?resize=150%2C150&amp;ssl=1\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Hallenborg Twin-turbo 7.0 L LSx powered Orange Viper Replica\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-09.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-09.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-09.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-09.jpg?zoom=3&amp;resize=150%2C150&amp;ssl=1 450w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" data-attachment-id=\"7749\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=7749\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-09.jpg?fit=592%2C444&amp;ssl=1\" data-orig-size=\"592,444\" data-comments-opened=\"1\" data-image-title=\"Hallenborg Twin-turbo LSx powered Orange Viper Replica 09\" data-image-description=\"&lt;p&gt;Hallenborg Twin-turbo 7.0 L LSx powered Orange Viper Replica&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-09.jpg?fit=592%2C444&amp;ssl=1\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-08.jpg?ssl=1\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-08.jpg?resize=150%2C150&amp;ssl=1\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Hallenborg Twin-turbo 7.0 L LSx powered Orange Viper Replica\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-08.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-08.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-08.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-08.jpg?zoom=3&amp;resize=150%2C150&amp;ssl=1 450w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" data-attachment-id=\"7748\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=7748\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-08.jpg?fit=500%2C333&amp;ssl=1\" data-orig-size=\"500,333\" data-comments-opened=\"1\" data-image-title=\"Hallenborg Twin-turbo LSx powered Orange Viper Replica 08\" data-image-description=\"&lt;p&gt;Hallenborg Twin-turbo 7.0 L LSx powered Orange Viper Replica&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-08.jpg?fit=500%2C333&amp;ssl=1\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-07.jpg?ssl=1\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-07.jpg?resize=150%2C150&amp;ssl=1\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Hallenborg Twin-turbo 7.0 L LSx powered Orange Viper Replica\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-07.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-07.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-07.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-07.jpg?zoom=3&amp;resize=150%2C150&amp;ssl=1 450w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" data-attachment-id=\"7747\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=7747\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-07.jpg?fit=500%2C333&amp;ssl=1\" data-orig-size=\"500,333\" data-comments-opened=\"1\" data-image-title=\"Hallenborg Twin-turbo LSx powered Orange Viper Replica 07\" data-image-description=\"&lt;p&gt;Hallenborg Twin-turbo 7.0 L LSx powered Orange Viper Replica&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-07.jpg?fit=500%2C333&amp;ssl=1\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-06.jpg?ssl=1\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-06.jpg?resize=150%2C150&amp;ssl=1\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Hallenborg Twin-turbo 7.0 L LSx powered Orange Viper Replica\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-06.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-06.jpg?resize=100%2C100&amp;ssl=1 100w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-06.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-06.jpg?zoom=3&amp;resize=150%2C150&amp;ssl=1 450w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" data-attachment-id=\"7746\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=7746\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-06.jpg?fit=592%2C444&amp;ssl=1\" data-orig-size=\"592,444\" data-comments-opened=\"1\" data-image-title=\"Hallenborg Twin-turbo LSx powered Orange Viper Replica 06\" data-image-description=\"&lt;p&gt;Hallenborg Twin-turbo 7.0 L LSx powered Orange Viper Replica&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-06.jpg?fit=592%2C444&amp;ssl=1\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\n<p>The first video shows the car running 1.0 bar (14.5 psi) and producing 770 whp while the second is set at 1.5 bar (21.7 psi) and producing 1048 whp.<br \/>\n<iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/2WzQWrRN_XQ\" width=\"610\" height=\"458\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/euO-_HM1klA\" width=\"610\" height=\"343\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>Source: <a href=\"http:\/\/www.hallenborg.se\/proj_viper.html\">Hallenborg.se<\/a> and photos by Dick Petersson via <a href=\"http:\/\/www.ls1.com\/forums\/f69\/hallenborgs-lsx-viper-session-2010-a-139085\/\">LS1.com<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>I came across this project over a year ago while researching for another article. I never planned on writing about it since it was completed many years ago but I saw it making the rounds again on social networks with incorrect information so maybe this will help a little. Although this is an amazing project&hellip;&nbsp;<a href=\"https:\/\/engineswapdepot.com\/?p=7728\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">Viper Replica with a Twin-turbo LSx<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":7742,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","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":[10],"tags":[],"class_list":["post-7728","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-corvette"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/10\/Hallenborg-Twin-turbo-LSx-powered-Orange-Viper-Replica-01.jpg?fit=1024%2C683&ssl=1","jetpack-related-posts":[{"id":110316,"url":"https:\/\/engineswapdepot.com\/?p=110316","url_meta":{"origin":7728,"position":0},"title":"1966 Mustang with a Turbo Coyote V8","author":"swaptastic","date":"January 17, 2024","format":false,"excerpt":"Krzysztof \u0106wiertnia from Custom 166 Racing built his unique 1966 Mustang after being inspired by Ken Block's Hoonicorn. When we shared the project three years ago, it was powered by a twin-turbo Chevy V8. Since then he swapped back to a Ford power plant. It is now powered by a\u2026","rel":"","context":"In &quot;Mustang&quot;","block_context":{"text":"Mustang","link":"https:\/\/engineswapdepot.com\/?cat=46"},"img":{"alt_text":"1966 Mustang with a Turbo Coyote V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/01\/1966-Mustang-with-a-Turbo-Coyote-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\/2024\/01\/1966-Mustang-with-a-Turbo-Coyote-V8-01.jpg?fit=1200%2C900&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/01\/1966-Mustang-with-a-Turbo-Coyote-V8-01.jpg?fit=1200%2C900&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/01\/1966-Mustang-with-a-Turbo-Coyote-V8-01.jpg?fit=1200%2C900&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/01\/1966-Mustang-with-a-Turbo-Coyote-V8-01.jpg?fit=1200%2C900&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":103272,"url":"https:\/\/engineswapdepot.com\/?p=103272","url_meta":{"origin":7728,"position":1},"title":"Smart Fortwo with a Hayabusa Motor","author":"swaptastic","date":"July 28, 2023","format":false,"excerpt":"Viny B purchased a 2008 Smart Fortwo with a blown inline-three motor to rebuild into a track car. He started by pulling the factory powertrain and rear subframe. In its place he installed a 1.3 inline-four and six-speed transmission from a 2005 Suzuki Hayabusa motorcycle. Power is sent to the\u2026","rel":"","context":"In &quot;Fortwo&quot;","block_context":{"text":"Fortwo","link":"https:\/\/engineswapdepot.com\/?cat=515"},"img":{"alt_text":"Viny B Smart Fortwo with a Hayabusa inline-four","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/07\/Viny-B-Smart-Fortwo-with-a-Hayabusa-Motor-01.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/07\/Viny-B-Smart-Fortwo-with-a-Hayabusa-Motor-01.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/07\/Viny-B-Smart-Fortwo-with-a-Hayabusa-Motor-01.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/07\/Viny-B-Smart-Fortwo-with-a-Hayabusa-Motor-01.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/07\/Viny-B-Smart-Fortwo-with-a-Hayabusa-Motor-01.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":104367,"url":"https:\/\/engineswapdepot.com\/?p=104367","url_meta":{"origin":7728,"position":2},"title":"ProPontiac Firebird at the Autocross","author":"swaptastic","date":"August 28, 2023","format":false,"excerpt":"Our last update on the ProPontiac Firebird was almost two years ago. Back then the car was on a dyno were the built 400 ci Pontiac V8 made 500+ horsepower. The V8 features Eagle forged pistons, Carillo forged rods, ported heads, dry sump, and custom camshaft. Behind the motor is\u2026","rel":"","context":"In &quot;Firebird&quot;","block_context":{"text":"Firebird","link":"https:\/\/engineswapdepot.com\/?cat=177"},"img":{"alt_text":"ProPontiac 1974 Firebird with a 400 ci V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/08\/ProPontiac-1974-Firebird-with-a-400-ci-V8-37.jpg?fit=1200%2C799&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/08\/ProPontiac-1974-Firebird-with-a-400-ci-V8-37.jpg?fit=1200%2C799&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/08\/ProPontiac-1974-Firebird-with-a-400-ci-V8-37.jpg?fit=1200%2C799&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/08\/ProPontiac-1974-Firebird-with-a-400-ci-V8-37.jpg?fit=1200%2C799&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/08\/ProPontiac-1974-Firebird-with-a-400-ci-V8-37.jpg?fit=1200%2C799&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":118652,"url":"https:\/\/engineswapdepot.com\/?p=118652","url_meta":{"origin":7728,"position":3},"title":"BMW E28 with a M60 V8","author":"swaptastic","date":"July 26, 2024","format":false,"excerpt":"Riley Stair built this 1986 BMW 535is (E28) several years ago as covered by Stanceworks in 2013. The car originally came with a 3.4 L M30 inline-six. However Riley swapped that for a 4.0 L M60B40 V8 from a BMW 540i (E34). Behind that is a five-speed manual transmission. Other\u2026","rel":"","context":"In &quot;E28&quot;","block_context":{"text":"E28","link":"https:\/\/engineswapdepot.com\/?cat=120"},"img":{"alt_text":"1986 BMW 535is with a M60 V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/07\/BMW-E28-with-a-M60-V8-01.jpg?fit=1200%2C674&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/07\/BMW-E28-with-a-M60-V8-01.jpg?fit=1200%2C674&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/07\/BMW-E28-with-a-M60-V8-01.jpg?fit=1200%2C674&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/07\/BMW-E28-with-a-M60-V8-01.jpg?fit=1200%2C674&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/07\/BMW-E28-with-a-M60-V8-01.jpg?fit=1200%2C674&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":106740,"url":"https:\/\/engineswapdepot.com\/?p=106740","url_meta":{"origin":7728,"position":4},"title":"Subaru BRZ with an EZ30 Flat-Six Racing at Several Tracks","author":"swaptastic","date":"October 25, 2023","format":false,"excerpt":"Several years ago EDM Speed Projects built Vini the Mini with a naturally aspirated 4.0 L BMW S65 V8 and M-DCT seven-speed transmission. More recently the company built a Subaru BRZ to compete in time attack. Instead of using the factory 2.0 L flat-four, they swapped in a 3.6 L\u2026","rel":"","context":"In &quot;86&quot;","block_context":{"text":"86","link":"https:\/\/engineswapdepot.com\/?cat=129"},"img":{"alt_text":"Subaru BRZ with an EZ30 Flat-Six","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/10\/Subaru-BRZ-with-an-EZ30-Flat-Six-01.jpg?fit=1200%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/10\/Subaru-BRZ-with-an-EZ30-Flat-Six-01.jpg?fit=1200%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/10\/Subaru-BRZ-with-an-EZ30-Flat-Six-01.jpg?fit=1200%2C1200&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/10\/Subaru-BRZ-with-an-EZ30-Flat-Six-01.jpg?fit=1200%2C1200&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/10\/Subaru-BRZ-with-an-EZ30-Flat-Six-01.jpg?fit=1200%2C1200&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":133227,"url":"https:\/\/engineswapdepot.com\/?p=133227","url_meta":{"origin":7728,"position":5},"title":"Toyota MR2 with a LSx V8","author":"swaptastic","date":"June 16, 2025","format":false,"excerpt":"Scantron's Garage started building a unique Toyota MR2 (SW20) 10 years ago. In that time the sports car has come a long way. In the back behind a custom firewall is a naturally aspirated LSx V8. The motor features upgraded camshaft and valve springs, custom stainless steel exhaust, and low\u2026","rel":"","context":"In &quot;MR2&quot;","block_context":{"text":"MR2","link":"https:\/\/engineswapdepot.com\/?cat=139"},"img":{"alt_text":"Toyota MR2 with a LSx V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/06\/Toyota-MR2-with-a-LSx-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\/2025\/06\/Toyota-MR2-with-a-LSx-V8-01.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/06\/Toyota-MR2-with-a-LSx-V8-01.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/06\/Toyota-MR2-with-a-LSx-V8-01.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/06\/Toyota-MR2-with-a-LSx-V8-01.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\/7728","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=7728"}],"version-history":[{"count":0,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/7728\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/media\/7742"}],"wp:attachment":[{"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7728"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7728"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7728"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}