{"id":131315,"date":"2025-05-05T06:00:43","date_gmt":"2025-05-05T11:00:43","guid":{"rendered":"https:\/\/engineswapdepot.com\/?p=131315"},"modified":"2025-05-04T21:52:58","modified_gmt":"2025-05-05T02:52:58","slug":"1978-mercedes-450slc-with-a-650-hp-supercharged-lt4-v8","status":"publish","type":"post","link":"https:\/\/engineswapdepot.com\/?p=131315","title":{"rendered":"1978 Mercedes 450SLC with a 650+ hp Supercharged LT4 V8"},"content":{"rendered":"

\"1978<\/a><\/p>\n

This 1978 Mercedes 450 SLC (C107<\/a>) arrived at Schwartz Performance<\/a> for an overhaul. The company used their experience to enhance the coupe’s power, handling, and appearance. <\/p>\n

\"1978<\/a><\/p>\n

\"1978<\/a><\/p>\n

Schwartz Performance swapped the factory 5.0 L M117 V8 for a supercharged 6.2 L LT4 V8<\/a>. The motor features an aluminum block, forged steel crank, forged steel rods, forged aluminum pistons, and ported supercharger. Schwartz Performance fabricated a set of custom headers and exhaust with Magnaflow mufflers. <\/p>\n

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

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

Backing the supercharged motor is a Tremec T56 Magnum six-speed manual transmission controlled by a S1 sequential shifter<\/a>. The final piece of the drivetrain is a Currie 9-inch independent rear end with a Truetrac limited-slip differential. <\/p>\n

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

Everything is supported by a custom Schwartz Performance G-Machine chassis<\/a> featuring a multi-link independent rear suspension, splined sway bars, and Ridetech adjustable coilovers. A set of Baer Extreme+ six-piston calipers and 14-inch rotors on each corner helps keep the 600+ hp car under control.<\/p>\n

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

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

On the body Schwartz Performance fabricated custom intake vents on the side windows to feed fresh air to the transmission and differential coolers. The body along with the European bumpers received grey metallic paint. They completed the exterior look with a set of Forgeline LS3 Heritage<\/a> wheels (18×10, 18×12) with BFGoodrich g-Force Rival tires (275\/35, 335\/30). <\/p>\n

\"1978<\/a><\/p>\n

\"1978<\/a><\/p>\n

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

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

Cassin Customizing<\/a> gave the car a new custom red interior. A set of Sparco SPX seats with carbon fiber backs are surrounded by a custom roll bar. Behind the suede-wrapped steering wheel is a Holley 12.3-inch digital touchscreen display. <\/p>\n

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

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

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

Source: Schwartz Performance<\/a> (project page)<\/p>\n","protected":false},"excerpt":{"rendered":"

This 1978 Mercedes 450 SLC (C107) arrived at Schwartz Performance for an overhaul. The company used their experience to enhance the coupe’s power, handling, and appearance. Schwartz Performance swapped the factory 5.0 L M117 V8 for a supercharged 6.2 L LT4 V8. The motor features an aluminum block, forged steel crank, forged steel rods, forged… Read More »1978 Mercedes 450SLC with a 650+ hp Supercharged LT4 V8<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":131317,"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":100,"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":[869,1197],"tags":[],"class_list":["post-131315","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-450sl","category-c107"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/05\/1978-Mercedes-450-SLC-with-a-Supercharged-LT4-V8-01.jpg?fit=2048%2C1317&ssl=1","jetpack-related-posts":[{"id":141320,"url":"https:\/\/engineswapdepot.com\/?p=141320","url_meta":{"origin":131315,"position":0},"title":"1978 Mercedes 450SLC with a Supercharged LT4 V8 Makes 622 hp on the Dyno","author":"swaptastic","date":"November 21, 2025","format":false,"excerpt":"Schwartz Performance built this 1978 Mercedes 450 SLC (C107) with a supercharged 6.2 L LT4 V8. The company put the classic coupe on the dyno where the motor made 622 hp (457 kW) and 617 lb-ft (836 Nm) of torque. The powerful V8 is backed by a Tremec T56 Magnum\u2026","rel":"","context":"In "450SL"","block_context":{"text":"450SL","link":"https:\/\/engineswapdepot.com\/?cat=869"},"img":{"alt_text":"1978 Mercedes 450 SLC with a Supercharged LT4 V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/11\/1978-Mercedes-450-SLC-with-a-Supercharged-LT4-V8-19.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/11\/1978-Mercedes-450-SLC-with-a-Supercharged-LT4-V8-19.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/11\/1978-Mercedes-450-SLC-with-a-Supercharged-LT4-V8-19.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/11\/1978-Mercedes-450-SLC-with-a-Supercharged-LT4-V8-19.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/11\/1978-Mercedes-450-SLC-with-a-Supercharged-LT4-V8-19.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":117169,"url":"https:\/\/engineswapdepot.com\/?p=117169","url_meta":{"origin":131315,"position":1},"title":"1976 Mercedes 450SLC with a 6.9 L V8","author":"swaptastic","date":"June 20, 2024","format":false,"excerpt":"This 1976 Mercedes 450 SLC called \"The Green Machine\" was built for the former boss of Dresdner Bank in Germany. The car originally came with a 4.5 L M117 V8 producing 222 hp (165 kW) and 278 lb-ft (377 Nm) of torque. That was swapped for a 6.9 L M100\u2026","rel":"","context":"In "C107"","block_context":{"text":"C107","link":"https:\/\/engineswapdepot.com\/?cat=1197"},"img":{"alt_text":"1976 Mercedes 450SLC with a 6.9 L M100 V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/06\/1976-Mercedes-450SLC-with-a-6.9-L-M100-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\/06\/1976-Mercedes-450SLC-with-a-6.9-L-M100-V8-01.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/06\/1976-Mercedes-450SLC-with-a-6.9-L-M100-V8-01.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/06\/1976-Mercedes-450SLC-with-a-6.9-L-M100-V8-01.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/06\/1976-Mercedes-450SLC-with-a-6.9-L-M100-V8-01.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":126904,"url":"https:\/\/engineswapdepot.com\/?p=126904","url_meta":{"origin":131315,"position":2},"title":"Top Articles of 2024","author":"swaptastic","date":"January 27, 2025","format":false,"excerpt":"Thank you for another year of support, emails, shares, and comments. We also want to thank the owners and builders who shared their projects with us. We look forward to another year of filled with wonderful engine swaps. Below are the top 25 posts from 2024. 25. TVR Sagaris with\u2026","rel":"","context":"In "Top List"","block_context":{"text":"Top List","link":"https:\/\/engineswapdepot.com\/?cat=152"},"img":{"alt_text":"Top Articles from 2024","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/01\/Top-Articles-from-2024.jpg?fit=1200%2C400&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/01\/Top-Articles-from-2024.jpg?fit=1200%2C400&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/01\/Top-Articles-from-2024.jpg?fit=1200%2C400&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/01\/Top-Articles-from-2024.jpg?fit=1200%2C400&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/01\/Top-Articles-from-2024.jpg?fit=1200%2C400&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":110454,"url":"https:\/\/engineswapdepot.com\/?p=110454","url_meta":{"origin":131315,"position":3},"title":"1983 Mercedes 500SEC with a Supercharged M113 V8","author":"swaptastic","date":"January 22, 2024","format":false,"excerpt":"Kwiek Classics upgrade the powertrain in this 1983 Mercedes-Benz 500SEC (W126) at their company in Nashville, Tennessee. In the engine bay they swapped a supercharged 5.4 L M113K V8 from a 2003 Mercedes S55. It features a dual 2.5-inch stainless steel exhaust and Haltech Elite 2500 ECU. The motor is\u2026","rel":"","context":"In "W126"","block_context":{"text":"W126","link":"https:\/\/engineswapdepot.com\/?cat=972"},"img":{"alt_text":"1983 Mercedes 500SEC with a Supercharged M113 V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/01\/1983-Mercedes-500SEC-with-a-Supercharged-M113-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\/01\/1983-Mercedes-500SEC-with-a-Supercharged-M113-V8-01.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/01\/1983-Mercedes-500SEC-with-a-Supercharged-M113-V8-01.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/01\/1983-Mercedes-500SEC-with-a-Supercharged-M113-V8-01.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/01\/1983-Mercedes-500SEC-with-a-Supercharged-M113-V8-01.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":141469,"url":"https:\/\/engineswapdepot.com\/?p=141469","url_meta":{"origin":131315,"position":4},"title":"Mercedes W201 with a Turbo M112 V6","author":"swaptastic","date":"November 26, 2025","format":false,"excerpt":"KOW-Tune specializes in upgrading Mercedes vehicles at their company in Przemysl, Poland. Last year we shared a Mercedes W124 they swapped with a M113 V8. This time KOW-Tune swapped a turbocharged 3.7 L M112 V6 into a Mercedes W201. The motor produces 434 hp (323 kW) and 616 Nm (454\u2026","rel":"","context":"In "W201"","block_context":{"text":"W201","link":"https:\/\/engineswapdepot.com\/?cat=366"},"img":{"alt_text":"Mercedes W201 with a Turbo M112 V6","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/11\/Mercedes-W201-with-a-Turbo-M112-V6-01.jpg?fit=1080%2C1020&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/11\/Mercedes-W201-with-a-Turbo-M112-V6-01.jpg?fit=1080%2C1020&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/11\/Mercedes-W201-with-a-Turbo-M112-V6-01.jpg?fit=1080%2C1020&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/11\/Mercedes-W201-with-a-Turbo-M112-V6-01.jpg?fit=1080%2C1020&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/11\/Mercedes-W201-with-a-Turbo-M112-V6-01.jpg?fit=1080%2C1020&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":121716,"url":"https:\/\/engineswapdepot.com\/?p=121716","url_meta":{"origin":131315,"position":5},"title":"2011 Mercedes GLK350 with a 5.5 L V8","author":"swaptastic","date":"October 8, 2024","format":false,"excerpt":"This 2011 Mercedes GLK350 originally came with a 3.5 L M272 V6. It is now powered by a 5.5 L M273 V8 from a 2010 Mercedes E550. The swap resulted in going from 268 hp (200 kW) and 258 lb-ft (350 Nm) to 382 hp (285 kW) and 391 lb-ft\u2026","rel":"","context":"In "GLK"","block_context":{"text":"GLK","link":"https:\/\/engineswapdepot.com\/?cat=1279"},"img":{"alt_text":"2011 Mercedes GLK350 with a 5.5 L V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/10\/2011-Mercedes-GLK350-with-a-5.5-L-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\/10\/2011-Mercedes-GLK350-with-a-5.5-L-V8-01.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/10\/2011-Mercedes-GLK350-with-a-5.5-L-V8-01.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/10\/2011-Mercedes-GLK350-with-a-5.5-L-V8-01.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/10\/2011-Mercedes-GLK350-with-a-5.5-L-V8-01.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/131315","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=131315"}],"version-history":[{"count":8,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/131315\/revisions"}],"predecessor-version":[{"id":131341,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/131315\/revisions\/131341"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/media\/131317"}],"wp:attachment":[{"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=131315"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=131315"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=131315"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}