{"id":145680,"date":"2026-02-27T15:29:54","date_gmt":"2026-02-27T21:29:54","guid":{"rendered":"https:\/\/engineswapdepot.com\/?p=145680"},"modified":"2026-02-27T15:29:54","modified_gmt":"2026-02-27T21:29:54","slug":"alfaholics-gta-r-with-a-2-1-l-twin-spark","status":"publish","type":"post","link":"https:\/\/engineswapdepot.com\/?p=145680","title":{"rendered":"Alfaholics’ GTA-R with a 2.1 L Twin Spark"},"content":{"rendered":"

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

Alfaholics<\/a> transformed this Alfa Romeo 105 series into a GTA-R 290<\/a> at their company in United Kingdom. The Italian sports car now benefits from an upgraded powertrain and lightweight suspension.<\/p>\n

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

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

Alfaholics installed a 2.1 L Alfa Romeo Twin Spark<\/a> inline-four capable of 240 hp at 7000 rpm. It features an aluminum block with custom 94 mm stroke crankshaft, steel rods, and forged pistons. On top sits a ported aluminum head with upgraded valvetrain.<\/p>\n

\"2.1<\/a><\/p>\n

Behind the motor is a close-ratio five-speed manual transmission. A lightweight driveshaft transmits power to a live axle with titanium tubes and limited-slip differential.<\/p>\n

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

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

Alfaholics enhanced the car’s handling using a lightweight titanium suspension. The front features titanium tubular upper control arms, titanium billet lower control arms, and titanium uprights. The rear uses titanium trailing arms. Both use double adjustable coilovers. Braking was improved using six-piston calipers with 300 mm carbon ceramic rotors in front. In the rear they installed two-piston calipers with 280 mm carbon ceramic rotors.<\/p>\n

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

\"six-piston<\/a><\/p>\n

Alfaholics further reduced the car’s weight with carbon fiber hood, doors, and trunk lid. They covered the body in Verde Bosco Metallic paint with a Crema Heritage accent in front. Under the arches are Alfaholics lightweight 15×7-inch wheels wearing Yokohama tires.<\/p>\n

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

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

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

The interior now features a set of leather covered Recaro seats with Willans harnesses. In front of that is a leather-wrapped Momo Prototipo steering wheel. Alfaholics protected the driver with a 14-point roll cage wrapped in Alcantara. <\/p>\n

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

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

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

\"Willans<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Alfaholics transformed this Alfa Romeo 105 series into a GTA-R 290 at their company in United Kingdom. The Italian sports car now benefits from an upgraded powertrain and lightweight suspension. Alfaholics installed a 2.1 L Alfa Romeo Twin Spark inline-four capable of 240 hp at 7000 rpm. It features an aluminum block with custom 94… Read More »Alfaholics’ GTA-R with a 2.1 L Twin Spark<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":145682,"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":[278],"tags":[],"class_list":["post-145680","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-278"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2026\/02\/Alfaholics-GTA-R-290-with-a-Twin-Spark-inline-four-01.jpg?fit=2400%2C1600&ssl=1","jetpack-related-posts":[{"id":117904,"url":"https:\/\/engineswapdepot.com\/?p=117904","url_meta":{"origin":145680,"position":0},"title":"Alfa Romeo GTA with a 240 hp Twin Spark","author":"swaptastic","date":"July 8, 2024","format":false,"excerpt":"Alfaholics built this Alfa Romeo GTA into a GTA-R 290 at their company in Clevedon, England. The car is now powered by an Alfa Romeo Twin Spark inline-four making 240 hp. It features a custom 94 mm stroke crankshaft, steel rods, forged pistons, ported aluminum heads, DLC camshaft, and Motec\u2026","rel":"","context":"In "105"","block_context":{"text":"105","link":"https:\/\/engineswapdepot.com\/?cat=278"},"img":{"alt_text":"Alfa Romeo with a Twin Spark inline-four","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/07\/Alfa-Romeo-with-a-Twin-Spark-inline-four-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\/Alfa-Romeo-with-a-Twin-Spark-inline-four-01.jpg?fit=1200%2C674&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/07\/Alfa-Romeo-with-a-Twin-Spark-inline-four-01.jpg?fit=1200%2C674&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/07\/Alfa-Romeo-with-a-Twin-Spark-inline-four-01.jpg?fit=1200%2C674&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/07\/Alfa-Romeo-with-a-Twin-Spark-inline-four-01.jpg?fit=1200%2C674&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":122450,"url":"https:\/\/engineswapdepot.com\/?p=122450","url_meta":{"origin":145680,"position":1},"title":"Alfa Romeo Junior Zagato with a Twin Spark","author":"swaptastic","date":"October 30, 2024","format":false,"excerpt":"Alfaholics built this Alfa Romeo Junior Zagato called the \"Zagato-R\" for Gordon Murray at their company in the UK. In the engine bay they installed an Alfa Romeo Twin Spark inline-four good for 230 hp (169 kW). The motor's aluminum block holds custom a custom 94 mm stroke crankshaft, steel\u2026","rel":"","context":"In "Junior Zagato"","block_context":{"text":"Junior Zagato","link":"https:\/\/engineswapdepot.com\/?cat=1283"},"img":{"alt_text":"Alfa Romeo Junior Zagato with a Twin-Spark inline-four","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/10\/Alfa-Romeo-Junior-Zagato-with-a-Twin-Spark-inline-four-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\/Alfa-Romeo-Junior-Zagato-with-a-Twin-Spark-inline-four-01.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/10\/Alfa-Romeo-Junior-Zagato-with-a-Twin-Spark-inline-four-01.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/10\/Alfa-Romeo-Junior-Zagato-with-a-Twin-Spark-inline-four-01.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/10\/Alfa-Romeo-Junior-Zagato-with-a-Twin-Spark-inline-four-01.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":133763,"url":"https:\/\/engineswapdepot.com\/?p=133763","url_meta":{"origin":145680,"position":2},"title":"Alfa Romeo 105 with a 2.1 L Twin Spark","author":"swaptastic","date":"June 27, 2025","format":false,"excerpt":"Alfaholics transformed this Alfa Romeo 105 series coupe into a \"GTA-R 300\" at their company in Clevedon, North Somerset, UK. Under the car's carbon fiber hood sits a naturally aspirated 2.1 L Twin Spark inline-four. The motor features an aluminum block with custom 94 mm stroke crank, forged steel I-beam\u2026","rel":"","context":"In "105"","block_context":{"text":"105","link":"https:\/\/engineswapdepot.com\/?cat=278"},"img":{"alt_text":"Alfa Romeo 105 series with a 2.1 L Twin Spark inline-four","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/06\/Alfa-Romeo-105-series-with-a-2.1-L-Twin-Spark-inline-four-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\/06\/Alfa-Romeo-105-series-with-a-2.1-L-Twin-Spark-inline-four-01.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/06\/Alfa-Romeo-105-series-with-a-2.1-L-Twin-Spark-inline-four-01.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/06\/Alfa-Romeo-105-series-with-a-2.1-L-Twin-Spark-inline-four-01.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/06\/Alfa-Romeo-105-series-with-a-2.1-L-Twin-Spark-inline-four-01.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":138752,"url":"https:\/\/engineswapdepot.com\/?p=138752","url_meta":{"origin":145680,"position":3},"title":"1972 Alfa Romeo with a 3.0L Busso V6","author":"swaptastic","date":"September 29, 2025","format":false,"excerpt":"Alfaholics transformed this 1972 Alfa Romeo 2000 Spider Veloce into a \"Spider-R V6\" in 2014 at their company in Somerset, UK. In the engine bay is a 3.0 L Busso V6 estimated to make 220 hp (161 kW) and 200 lb-ft (271 Nm) of torque. Behind the motor is a\u2026","rel":"","context":"In "Spider"","block_context":{"text":"Spider","link":"https:\/\/engineswapdepot.com\/?cat=1318"},"img":{"alt_text":"1972 Alfa Romeo 2000 Spider Veloce with a 3.0L Busso V6","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/09\/1972-Alfa-Romeo-2000-Spider-Veloce-with-a-3.0L-Busso-V6-01.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/09\/1972-Alfa-Romeo-2000-Spider-Veloce-with-a-3.0L-Busso-V6-01.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/09\/1972-Alfa-Romeo-2000-Spider-Veloce-with-a-3.0L-Busso-V6-01.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/09\/1972-Alfa-Romeo-2000-Spider-Veloce-with-a-3.0L-Busso-V6-01.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/09\/1972-Alfa-Romeo-2000-Spider-Veloce-with-a-3.0L-Busso-V6-01.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":102943,"url":"https:\/\/engineswapdepot.com\/?p=102943","url_meta":{"origin":145680,"position":4},"title":"Alfa Romeo Giulia with a 240 hp Twin Spark","author":"swaptastic","date":"July 20, 2023","format":false,"excerpt":"Alfaholics created this \u201cSuper-R 270\u201d from a Alfa Romeo Giulia at their company in Clevedon, North Somerset, UK. In the engine bay they installed a 2.2 L Twin Spark inline-four producing 240 horsepower at 7,000 rpm. The motor features an aluminum block, custom 94 mm stroke crankshaft, steel rods, and\u2026","rel":"","context":"In "Giulia"","block_context":{"text":"Giulia","link":"https:\/\/engineswapdepot.com\/?cat=1213"},"img":{"alt_text":"Alfa Romeo Giulia Super-R with a Twin-Spark inline-four","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/07\/Alfa-Romeo-Giulia-Super-R-with-a-Twin-Spark-inline-four-02.jpg?fit=1200%2C900&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/07\/Alfa-Romeo-Giulia-Super-R-with-a-Twin-Spark-inline-four-02.jpg?fit=1200%2C900&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/07\/Alfa-Romeo-Giulia-Super-R-with-a-Twin-Spark-inline-four-02.jpg?fit=1200%2C900&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/07\/Alfa-Romeo-Giulia-Super-R-with-a-Twin-Spark-inline-four-02.jpg?fit=1200%2C900&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/07\/Alfa-Romeo-Giulia-Super-R-with-a-Twin-Spark-inline-four-02.jpg?fit=1200%2C900&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":66517,"url":"https:\/\/engineswapdepot.com\/?p=66517","url_meta":{"origin":145680,"position":5},"title":"Carbon Fiber Alfa Romeo","author":"swaptastic","date":"January 21, 2021","format":false,"excerpt":"Alfaholics is a company in Clevedon, England that specializes in Alfa Romeo 105 series parts and performance. The company recently debuted their newest project called the GTA-R 300 Carbon. The project starts with a custom carbon fiber body weighing 70 kg (154 lb) less than a steel body. The company\u2026","rel":"","context":"In "105"","block_context":{"text":"105","link":"https:\/\/engineswapdepot.com\/?cat=278"},"img":{"alt_text":"carbon fiber Alfa Romeo with a Twin Spark inline-four","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/01\/GTA-R-300-Carbon-with-a-Twin-Spark-inline-four-01.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/01\/GTA-R-300-Carbon-with-a-Twin-Spark-inline-four-01.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/01\/GTA-R-300-Carbon-with-a-Twin-Spark-inline-four-01.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/01\/GTA-R-300-Carbon-with-a-Twin-Spark-inline-four-01.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2021\/01\/GTA-R-300-Carbon-with-a-Twin-Spark-inline-four-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\/145680","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=145680"}],"version-history":[{"count":5,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/145680\/revisions"}],"predecessor-version":[{"id":145701,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/145680\/revisions\/145701"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/media\/145682"}],"wp:attachment":[{"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=145680"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=145680"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=145680"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}