{"id":151571,"date":"2026-08-03T06:00:58","date_gmt":"2026-08-03T11:00:58","guid":{"rendered":"https:\/\/engineswapdepot.com\/?p=151571"},"modified":"2026-08-02T23:38:33","modified_gmt":"2026-08-03T04:38:33","slug":"1983-cadillac-coupe-deville-with-a-427-ci-v8","status":"publish","type":"post","link":"https:\/\/engineswapdepot.com\/?p=151571","title":{"rendered":"1983 Cadillac Coupe Deville with a 427 ci V8"},"content":{"rendered":"

\"front-side<\/a><\/p>\n

Matt Graves is the Marketing and Sales directory at American Powertrain<\/a>. Matt set out to build a pro-tourer using a vehicle most would not envision. In 2021 he debuted a 1983 Cadillac Coupe DeVille<\/a> called “Chicken Coupe” for the Hot Rod Power Tour.<\/p>\n

\"front-side<\/a><\/p>\n

\"rear-side<\/a><\/p>\n

The heart of the project is a World Products “Warhawk” 427 ci LSx V8 crate motor using Holley G-body LS swap mounts<\/a>. The motor features an iron block with Eagle crank, Manley rods, Mahle pistons, and Comp camshaft with 248\/254 duration and 0.637\/0.657-inch lift. On top sits a World Products 220 cc heads and Holley Race intake manifold with 1000 cfm throttle body. The combo is good for 600 hp (441 kW) using 93 octane.<\/p>\n

\"427<\/a><\/p>\n

\"built<\/a><\/p>\n

Since Matt works at American Powertrain, he installed their Tremec Magnum six-speed manual transmission behind a Centerforce DYAD twin-disc clutch and Quicktime bellhousing. Being the transmission is a custom driveshaft made by American Powertrain and Currie 9-inch rear axle. The rear end using an Eaton Truetrac limited-slip differential with 3.73 ratio and 31-spline axles.<\/p>\n

\"underneath<\/a><\/p>\n

\"Centerforce<\/a><\/p>\n

\"9-inch<\/a><\/p>\n

Matt improved the coupe’s handling using a Burgeson quick-ratio steering box and QA1 B-body Level 2 suspension<\/a>. The suspension kit included tubular control arms, sway bars, and coilovers.<\/p>\n

\"side<\/a><\/p>\n

The factory brakes were swapped for Baer six-piston calipers and 14-inch rotors on each corner. Those were covered by American Racing VN510 Draft 18×10-inch wheels wearing Kumho Ecsta PS91 tires (255\/40, 275\/40). You can read more details on the car at Hot Rod<\/a>. <\/p>\n

\"American<\/a><\/p>\n

\"closeup<\/a><\/p>\n

Source: Hot Rod<\/a> and Carbuff Network<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Matt Graves is the Marketing and Sales directory at American Powertrain. Matt set out to build a pro-tourer using a vehicle most would not envision. In 2021 he debuted a 1983 Cadillac Coupe DeVille called “Chicken Coupe” for the Hot Rod Power Tour. The heart of the project is a World Products “Warhawk” 427 ci… Read More »1983 Cadillac Coupe Deville with a 427 ci V8<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":151580,"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,"_wpcom_ai_launchpad_first_post":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[351],"tags":[],"class_list":["post-151571","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-de-ville"],"jetpack-related-posts":[{"id":6115,"url":"https:\/\/engineswapdepot.com\/?p=6115","url_meta":{"origin":151571,"position":0},"title":"Cadillac Coupe de Ville with a 6.0 L LSx","author":"swaptastic","date":"September 22, 2015","format":false,"excerpt":"The owner of this fifth generation Cadillac DeVille coupe originally had a built Cadillac motor power it but after a wanted to go faster so he turned to the LSx. Under the hood now sits a 6.0 L LSx that runs on methanol and produces around 600 horsepower. The block\u2026","rel":"","context":"In "de Ville"","block_context":{"text":"de Ville","link":"https:\/\/engineswapdepot.com\/?cat=351"},"img":{"alt_text":"Cadillac Coupe de Ville with a 6.0 L LSx","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/09\/Cadillac-Coupe-de-Ville-with-a-6.0-L-LSx-01-1024x572.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/09\/Cadillac-Coupe-de-Ville-with-a-6.0-L-LSx-01-1024x572.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/09\/Cadillac-Coupe-de-Ville-with-a-6.0-L-LSx-01-1024x572.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":16830,"url":"https:\/\/engineswapdepot.com\/?p=16830","url_meta":{"origin":151571,"position":1},"title":"1959 Cadillac with a LSA V8","author":"swaptastic","date":"June 28, 2017","format":false,"excerpt":"This 1959 Cadillac Coupe de Ville was built by Hardcore Engine Builders in Hungary. The builders have upgraded every major component on this land yacht. The engine has been upgraded to a supercharged 6.2 L LSA V8 that produces 580 horsepower thanks to a Aeromotive EFI system. Behind that sits\u2026","rel":"","context":"In "de Ville"","block_context":{"text":"de Ville","link":"https:\/\/engineswapdepot.com\/?cat=351"},"img":{"alt_text":"1959 Cadillac Coupe de Ville with a LSA V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2017\/06\/1959-Cadillac-Coupe-de-Ville-with-a-LSA-V8-01.jpg?fit=800%2C533&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2017\/06\/1959-Cadillac-Coupe-de-Ville-with-a-LSA-V8-01.jpg?fit=800%2C533&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2017\/06\/1959-Cadillac-Coupe-de-Ville-with-a-LSA-V8-01.jpg?fit=800%2C533&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2017\/06\/1959-Cadillac-Coupe-de-Ville-with-a-LSA-V8-01.jpg?fit=800%2C533&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":18250,"url":"https:\/\/engineswapdepot.com\/?p=18250","url_meta":{"origin":151571,"position":2},"title":"1977 Cadillac with a Twin-Turbo LSx","author":"swaptastic","date":"September 15, 2017","format":false,"excerpt":"Shawn Gilbert built his 1977 Cadillac Coupe de Ville to drag race. Under the hood sits a 6.0 L LSx V8 that produces 1,172 horsepower to the rear wheels. The engine features stock block and crank, Wiseco pistons, K1 rods, LSA heads, Holley Dominator EFI system, and a twin-turbo system\u2026","rel":"","context":"In "de Ville"","block_context":{"text":"de Ville","link":"https:\/\/engineswapdepot.com\/?cat=351"},"img":{"alt_text":"1977 Cadillac coupe de ville with a Twin-Turbo LSx V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2017\/09\/1977-Cadillac-coupe-de-ville-with-a-Twin-Turbo-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\/2017\/09\/1977-Cadillac-coupe-de-ville-with-a-Twin-Turbo-LSx-V8-01.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2017\/09\/1977-Cadillac-coupe-de-ville-with-a-Twin-Turbo-LSx-V8-01.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2017\/09\/1977-Cadillac-coupe-de-ville-with-a-Twin-Turbo-LSx-V8-01.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2017\/09\/1977-Cadillac-coupe-de-ville-with-a-Twin-Turbo-LSx-V8-01.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":12649,"url":"https:\/\/engineswapdepot.com\/?p=12649","url_meta":{"origin":151571,"position":3},"title":"The Deuce DeVille","author":"swaptastic","date":"November 7, 2016","format":false,"excerpt":"This Mad Max vehicle is called the \"Deuce DeVille\" and was built by Matt Groover. Matt took the rolling chassis from a M35 2.5-ton \"deuce and a half\" cargo truck and stuffed it under a 1964 Cadillac de Ville. 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In the engine bay sits one of their twin-turbocharged 470 ci (7.7L) HEMI V8 motors. The engine made 1476 hp and 1406 lb-ft of torque on 21 psi of boost on NRE's dyno (video below). Behind the\u2026","rel":"","context":"In "de Ville"","block_context":{"text":"de Ville","link":"https:\/\/engineswapdepot.com\/?cat=351"},"img":{"alt_text":"1959 Cadillac with a Twin-Turbo HEMI V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/11\/1959-Cadillac-with-a-Twin-Turbo-HEMI-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\/2023\/11\/1959-Cadillac-with-a-Twin-Turbo-HEMI-V8-01.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/11\/1959-Cadillac-with-a-Twin-Turbo-HEMI-V8-01.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/11\/1959-Cadillac-with-a-Twin-Turbo-HEMI-V8-01.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/11\/1959-Cadillac-with-a-Twin-Turbo-HEMI-V8-01.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":2779,"url":"https:\/\/engineswapdepot.com\/?p=2779","url_meta":{"origin":151571,"position":5},"title":"Sean Mote’s 1970 Cadillac Coupe de Ville","author":"swaptastic","date":"August 13, 2013","format":false,"excerpt":"You have to have a very powerful motor and stomach to take a 1970 Cadillac Coupe de Ville 176 mph. Sean Mote has built up both over the years. The car is running a 500 cubic inch V8 with a huge 106mm Precision turbocharger hooked to a Turbo 400 transmission.\u2026","rel":"","context":"In "Cadillac"","block_context":{"text":"Cadillac","link":"https:\/\/engineswapdepot.com\/?cat=111"},"img":{"alt_text":"1970_cadillac_coupe_de_ville_500_ci_v8_02","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2013\/08\/1970_cadillac_coupe_de_ville_500_ci_v8_02-1024x682.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2013\/08\/1970_cadillac_coupe_de_ville_500_ci_v8_02-1024x682.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2013\/08\/1970_cadillac_coupe_de_ville_500_ci_v8_02-1024x682.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]}],"jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2026\/08\/1983-Cadillac-Coupe-Deville-with-a-427-ci-LSx-V8-01.jpg?fit=2048%2C1365&ssl=1","_links":{"self":[{"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/151571","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=151571"}],"version-history":[{"count":12,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/151571\/revisions"}],"predecessor-version":[{"id":151596,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/151571\/revisions\/151596"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/media\/151580"}],"wp:attachment":[{"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=151571"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=151571"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=151571"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}