{"id":30638,"date":"2018-12-10T18:57:47","date_gmt":"2018-12-11T00:57:47","guid":{"rendered":"https:\/\/engineswapdepot.com\/?p=30638"},"modified":"2018-12-10T18:59:40","modified_gmt":"2018-12-11T00:59:40","slug":"hartley-engines-custom-1gz-v12-explained","status":"publish","type":"post","link":"https:\/\/engineswapdepot.com\/?p=30638","title":{"rendered":"Hartley Engine&#8217;s Custom 1GZ V12"},"content":{"rendered":"<p><a href=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/12\/Nissan-S14-with-a-Toyota-1GZ-FE-V12-11.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"30645\" data-permalink=\"https:\/\/engineswapdepot.com\/?attachment_id=30645\" data-orig-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/12\/Nissan-S14-with-a-Toyota-1GZ-FE-V12-11.jpg?fit=1280%2C720&amp;ssl=1\" data-orig-size=\"1280,720\" data-comments-opened=\"1\" data-image-title=\"Nissan S14 with a Toyota 1GZ-FE V12 11\" data-image-description=\"&lt;p&gt;Nissan S14 with a Toyota 1GZ-FE V12&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/12\/Nissan-S14-with-a-Toyota-1GZ-FE-V12-11.jpg?fit=1024%2C576&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/12\/Nissan-S14-with-a-Toyota-1GZ-FE-V12-11.jpg?resize=600%2C338&#038;ssl=1\" alt=\"Nissan S14 with a Toyota 1GZ-FE V12\" width=\"600\" height=\"338\" class=\"alignnone size-medium wp-image-30645\" srcset=\"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/12\/Nissan-S14-with-a-Toyota-1GZ-FE-V12-11.jpg?resize=600%2C338&amp;ssl=1 600w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/12\/Nissan-S14-with-a-Toyota-1GZ-FE-V12-11.jpg?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/12\/Nissan-S14-with-a-Toyota-1GZ-FE-V12-11.jpg?resize=1024%2C576&amp;ssl=1 1024w, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/12\/Nissan-S14-with-a-Toyota-1GZ-FE-V12-11.jpg?w=1280&amp;ssl=1 1280w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.facebook.com\/OlivecronaDriftMotorsport\/\">Jaron Olivecrona<\/a> competes in a Nissan S14 with a 5.0 L V12 built by <a href=\"https:\/\/www.facebook.com\/HartleyEngines\/\">Hartley Engines<\/a>. The V12 makes 700 horsepower at 9,500 rpm with a 13:1 compression ratio and E85 fuel. Although the engine is based on Toyota&#8217;s 1GZ-FE V12, it features many custom parts developed and built by Hartley Engines. Listen as Andre from <a href=\"https:\/\/www.hpacademy.com\/\">High Performance Academy<\/a> explains how they built the engine. View more photos of the <a href=\"https:\/\/engineswapdepot.com\/?p=21650\">engine here<\/a>.<\/p>\n<p><iframe loading=\"lazy\" width=\"600\" height=\"338\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/4ZPQyedvEQY\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p>Source: <a href=\"https:\/\/www.youtube.com\/channel\/UCkH2fkUhM1nM86-j6xrg_sQ\">High Performance Academy<\/a> and <a href=\"https:\/\/www.facebook.com\/HartleyEngines\/\">Hartley Engines<\/a> via Piotr<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Jaron Olivecrona competes in a Nissan S14 with a 5.0 L V12 built by Hartley Engines. The V12 makes 700 horsepower at 9,500 rpm with a 13:1 compression ratio and E85 fuel. Although the engine is based on Toyota&#8217;s 1GZ-FE V12, it features many custom parts developed and built by Hartley Engines. Listen as Andre&hellip;&nbsp;<a href=\"https:\/\/engineswapdepot.com\/?p=30638\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">Hartley Engine&#8217;s Custom 1GZ V12<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":30645,"comment_status":"open","ping_status":"closed","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":[827],"tags":[],"class_list":["post-30638","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hartley-v12"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/12\/Nissan-S14-with-a-Toyota-1GZ-FE-V12-11.jpg?fit=1280%2C720&ssl=1","jetpack-related-posts":[{"id":108230,"url":"https:\/\/engineswapdepot.com\/?p=108230","url_meta":{"origin":30638,"position":0},"title":"Hartley&#8217;s 10,000 rpm V12 on the Dyno","author":"swaptastic","date":"November 29, 2023","format":false,"excerpt":"Hartley Engines recently dyno'd one of their built Toyota 1GZ-FE V12 engines. The naturally aspirated 5.0 L motor made 720 hp at 10,000 rpm. It features their forged pistons, forged rods, billet camshaft covers, ported heads, individual throttle body system, billet camshafts, and billet dry sump. Hartley Engines also built\u2026","rel":"","context":"In &quot;Hartley V12&quot;","block_context":{"text":"Hartley V12","link":"https:\/\/engineswapdepot.com\/?cat=827"},"img":{"alt_text":"Toyota 1GZ V12 built by Hartley Engines","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/11\/Hartley-Engines-Toyota-1GZ-V12-01.jpg?fit=1200%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/11\/Hartley-Engines-Toyota-1GZ-V12-01.jpg?fit=1200%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/11\/Hartley-Engines-Toyota-1GZ-V12-01.jpg?fit=1200%2C1200&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/11\/Hartley-Engines-Toyota-1GZ-V12-01.jpg?fit=1200%2C1200&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/11\/Hartley-Engines-Toyota-1GZ-V12-01.jpg?fit=1200%2C1200&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":110477,"url":"https:\/\/engineswapdepot.com\/?p=110477","url_meta":{"origin":30638,"position":1},"title":"Jaron Olivecrona Drifting a Lexus RC F with a Twin-Turbo V12","author":"swaptastic","date":"January 22, 2024","format":false,"excerpt":"Jaron Olivecrona from Olivecrona Drift Motorsport began building a new project for D1NZ Drifting Championship Series in 2022. Jaron started with a Lexus RC F and swapped in a twin-turbo 1GZ-FE V12 built by Hartley Engines. The engine features Hartley Engine's forged pistons and rods, ITB intake manifold, and custom\u2026","rel":"","context":"In &quot;RC&quot;","block_context":{"text":"RC","link":"https:\/\/engineswapdepot.com\/?cat=883"},"img":{"alt_text":"Lexus RC F with a Twin-Turbo 1GZ V12","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/01\/Lexus-RC-F-with-a-Twin-Turbo-1GZ-V12-10.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/01\/Lexus-RC-F-with-a-Twin-Turbo-1GZ-V12-10.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/01\/Lexus-RC-F-with-a-Twin-Turbo-1GZ-V12-10.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/01\/Lexus-RC-F-with-a-Twin-Turbo-1GZ-V12-10.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/01\/Lexus-RC-F-with-a-Twin-Turbo-1GZ-V12-10.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":134947,"url":"https:\/\/engineswapdepot.com\/?p=134947","url_meta":{"origin":30638,"position":2},"title":"Lexus RC F with a Toyota 1GZ-FE V12","author":"swaptastic","date":"July 22, 2025","format":false,"excerpt":"In 2023 Jaron Olivecrona from Olivecrona Drift Motorsport decided to move on from his V12-powered Nissan S14 to a new vehicle for the D1NZ Drifting Championship Series. Jaron's newest drift machine would be a Lexus RC F. However instead of using the factory 5.0 L 2UR-GSE V8, Jaron swapped a\u2026","rel":"","context":"In &quot;RC&quot;","block_context":{"text":"RC","link":"https:\/\/engineswapdepot.com\/?cat=883"},"img":{"alt_text":"Lexus RC F with a Toyota 1GZ V12","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/07\/Lexus-RC-F-with-a-Toyota-1GZ-V12-14.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/07\/Lexus-RC-F-with-a-Toyota-1GZ-V12-14.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/07\/Lexus-RC-F-with-a-Toyota-1GZ-V12-14.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/07\/Lexus-RC-F-with-a-Toyota-1GZ-V12-14.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/07\/Lexus-RC-F-with-a-Toyota-1GZ-V12-14.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":21650,"url":"https:\/\/engineswapdepot.com\/?p=21650","url_meta":{"origin":30638,"position":3},"title":"Hartley V12","author":"swaptastic","date":"March 8, 2018","format":false,"excerpt":"Last year we shared Jaron Olivecrona's amazing V12 powered Nissan S14 drift machine. The 5.0 L V12 is based on the Toyota 1GZ-FE and built by Hartley Engines in Palmerston North, New Zealand. The engine uses mostly custom or aftermarket parts only retaining the block casting, head casting, crank, and\u2026","rel":"","context":"In &quot;Custom&quot;","block_context":{"text":"Custom","link":"https:\/\/engineswapdepot.com\/?cat=509"},"img":{"alt_text":"Hartley 5.0 L 1GZ V12","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/03\/Hartley-5.0-L-1GZ-V12-01.jpg?fit=1200%2C900&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/03\/Hartley-5.0-L-1GZ-V12-01.jpg?fit=1200%2C900&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/03\/Hartley-5.0-L-1GZ-V12-01.jpg?fit=1200%2C900&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/03\/Hartley-5.0-L-1GZ-V12-01.jpg?fit=1200%2C900&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/03\/Hartley-5.0-L-1GZ-V12-01.jpg?fit=1200%2C900&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":51286,"url":"https:\/\/engineswapdepot.com\/?p=51286","url_meta":{"origin":30638,"position":4},"title":"Jaron Olivecrona Upgrades to a Hartley Twin-Turbo V12","author":"swaptastic","date":"January 21, 2020","format":false,"excerpt":"Jaron Olivecrona competed in the last two seasons of D1NZ in a Nissan S14 with a Toyota 1GZ-FE V12. The naturally aspirated V12 was built by Hartley Engines in Palmerston North, New Zealand and made 700-800 horsepower at 9,500 rpm. Hartley Engines recently debuted their twin-turbo version. The V12 was\u2026","rel":"","context":"In &quot;S14&quot;","block_context":{"text":"S14","link":"https:\/\/engineswapdepot.com\/?cat=638"},"img":{"alt_text":"Jaron Olivecrona Nissan S14 with a twin-turbo 1GZ V12","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/01\/Jaron-Olivecrona-Nissan-S14-with-a-twin-turbo-1GZ-V12-01.jpg?fit=1200%2C900&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/01\/Jaron-Olivecrona-Nissan-S14-with-a-twin-turbo-1GZ-V12-01.jpg?fit=1200%2C900&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/01\/Jaron-Olivecrona-Nissan-S14-with-a-twin-turbo-1GZ-V12-01.jpg?fit=1200%2C900&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/01\/Jaron-Olivecrona-Nissan-S14-with-a-twin-turbo-1GZ-V12-01.jpg?fit=1200%2C900&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/01\/Jaron-Olivecrona-Nissan-S14-with-a-twin-turbo-1GZ-V12-01.jpg?fit=1200%2C900&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":80854,"url":"https:\/\/engineswapdepot.com\/?p=80854","url_meta":{"origin":30638,"position":5},"title":"Hartley&#8217;s Twin-Turbo 1GZ V12","author":"swaptastic","date":"December 27, 2021","format":false,"excerpt":"Nelson Hartley from Hartley Engines and Motorsport is developing parts for a naturally aspirated or twin-turbo Toyota 1GZ-FE V8. The parts include CNC-ported heads, billet ITB manifolds, forged pistons and rods, pulleys, dry sump system, billet flywheel and bellhousing. You might remember their prototype twin-turbo V12 found its way into\u2026","rel":"","context":"In &quot;Hartley V12&quot;","block_context":{"text":"Hartley V12","link":"https:\/\/engineswapdepot.com\/?cat=827"},"img":{"alt_text":"Hartley Engines' twin-turbo Toyota 1GZ V12","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/12\/Hartley-twin-turbo-Toyota-1GZ-V12-01.jpg?fit=1200%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/12\/Hartley-twin-turbo-Toyota-1GZ-V12-01.jpg?fit=1200%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/12\/Hartley-twin-turbo-Toyota-1GZ-V12-01.jpg?fit=1200%2C1200&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/12\/Hartley-twin-turbo-Toyota-1GZ-V12-01.jpg?fit=1200%2C1200&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/12\/Hartley-twin-turbo-Toyota-1GZ-V12-01.jpg?fit=1200%2C1200&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/30638","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=30638"}],"version-history":[{"count":11,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/30638\/revisions"}],"predecessor-version":[{"id":30651,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/30638\/revisions\/30651"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/media\/30645"}],"wp:attachment":[{"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=30638"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=30638"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=30638"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}