{"id":133763,"date":"2025-06-27T13:44:37","date_gmt":"2025-06-27T18:44:37","guid":{"rendered":"https:\/\/engineswapdepot.com\/?p=133763"},"modified":"2025-06-27T13:44:37","modified_gmt":"2025-06-27T18:44:37","slug":"alfa-romeo-105-with-a-2-1-l-twin-spark","status":"publish","type":"post","link":"https:\/\/engineswapdepot.com\/?p=133763","title":{"rendered":"Alfa Romeo 105 with a 2.1 L Twin Spark"},"content":{"rendered":"

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

Alfaholics<\/a> transformed this Alfa Romeo 105 series coupe into a “GTA-R 300<\/a>” at their company in Clevedon, North Somerset, UK.<\/p>\n

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

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

Under the car’s carbon fiber hood sits a naturally aspirated 2.1 L Twin Spark<\/a> inline-four. The motor features an aluminum block with custom 94 mm stroke crank, forged steel I-beam rods, and forged pistons. On top sits a ported head with Alfaholics designed camshafts. The motor produces 240 hp at 7,000 rpm on a Motec M1 ECU. <\/p>\n

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

The Twin Spark inline-four is paired to a close-ratio five-speed manual transmission. From there power is transmitted by a lightweight driveshaft to an Alfa Romeo live axle with a limited-slip differential.<\/p>\n

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

Alfaholics improved the car’s handling using to their custom lightweight suspension. It features billet titanium lower control arms, tubular titanium upper control arms, billet titanium uprights, titanium wheel hubs, and titanium rear trailing arms. <\/p>\n

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

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

A set of Alfaholics designed 15×7-inch wheels cover billet aluminum six-piston calipers with 300 mm carbon ceramic rotors. The rear brakes use two-piston calipers with 280 mm carbon ceramic rotors.<\/p>\n

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

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

The interior features custom black leather upholstery and Alcantara dashboard. Attached at the end of the steering column is a leather-wrapped Momo Prototipo steering wheel. <\/p>\n

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

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

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

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

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

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 rods, and forged pistons. On… Read More »Alfa Romeo 105 with a 2.1 L Twin Spark<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":133779,"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-133763","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\/2025\/06\/Alfa-Romeo-105-series-with-a-2.1-L-Twin-Spark-inline-four-01.jpg?fit=2400%2C1600&ssl=1","jetpack-related-posts":[{"id":1688,"url":"https:\/\/engineswapdepot.com\/?p=1688","url_meta":{"origin":133763,"position":0},"title":"Alfa Romeo 105 with a Nissan SR20","author":"swaptastic","date":"March 3, 2015","format":false,"excerpt":"The owner of this amazing Alfa Romeo 105 has built the car of his dreams and others as well. The biggest modification is swapping the factory with a turbocharged 2.0 L Nissan SR20 inline-four. The engine was built with Kelford camshafts, Garret 2861 turbocharger, and controlled by a Link ECU.\u2026","rel":"","context":"In "105"","block_context":{"text":"105","link":"https:\/\/engineswapdepot.com\/?cat=278"},"img":{"alt_text":"Alfa Romeo 105 with a turbocharged Nissan SR20","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/03\/Alfa-Romeo-105-With-Nissan-SR20-01.jpg?fit=1200%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/03\/Alfa-Romeo-105-With-Nissan-SR20-01.jpg?fit=1200%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/03\/Alfa-Romeo-105-With-Nissan-SR20-01.jpg?fit=1200%2C1200&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/03\/Alfa-Romeo-105-With-Nissan-SR20-01.jpg?fit=1200%2C1200&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2015\/03\/Alfa-Romeo-105-With-Nissan-SR20-01.jpg?fit=1200%2C1200&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":51453,"url":"https:\/\/engineswapdepot.com\/?p=51453","url_meta":{"origin":133763,"position":1},"title":"Alfa Romeo 105 with a Ferrari V8","author":"swaptastic","date":"January 24, 2020","format":false,"excerpt":"Jeff Micklem from Home Built By Jeff has been working hard rebuilding an Alfa Romeo 105. One of the most interesting parts of the project is the powertrain. Jeff is installing a 3.6 L F131 V8 from a 2000 Ferrari 360 mated to a six-speed manual transmission from a Subaru\u2026","rel":"","context":"In "105"","block_context":{"text":"105","link":"https:\/\/engineswapdepot.com\/?cat=278"},"img":{"alt_text":"Alfa Romeo 105 with a 3.6 L Ferrari V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/01\/Alfa-Romeo-105-with-a-3.6-L-Ferrari-V8-01.jpg?fit=1200%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/01\/Alfa-Romeo-105-with-a-3.6-L-Ferrari-V8-01.jpg?fit=1200%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/01\/Alfa-Romeo-105-with-a-3.6-L-Ferrari-V8-01.jpg?fit=1200%2C1200&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/01\/Alfa-Romeo-105-with-a-3.6-L-Ferrari-V8-01.jpg?fit=1200%2C1200&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2020\/01\/Alfa-Romeo-105-with-a-3.6-L-Ferrari-V8-01.jpg?fit=1200%2C1200&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":117904,"url":"https:\/\/engineswapdepot.com\/?p=117904","url_meta":{"origin":133763,"position":2},"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":346,"url":"https:\/\/engineswapdepot.com\/?p=346","url_meta":{"origin":133763,"position":3},"title":"1975 Alfa Romeo with a 5.0 L Mustang V8","author":"swaptastic","date":"October 21, 2008","format":false,"excerpt":"This 1975 Alfa Romeo 2000 GT Veloce is not longer powered by a 2.0 L inline-four. It's now powered by a 5.0 L Ford V8 with Brodix aluminum heads, Edelbrock intake, and Hedman headers. The motor mates to a Mustang manual transmission. The car rides on Apex springs and Koni\u2026","rel":"","context":"In "105"","block_context":{"text":"105","link":"https:\/\/engineswapdepot.com\/?cat=278"},"img":{"alt_text":"Alfa Romeo with Mustang V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2008\/10\/Alfa-Romeo-with-Mustang-V8-01.jpg?fit=600%2C450&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2008\/10\/Alfa-Romeo-with-Mustang-V8-01.jpg?fit=600%2C450&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2008\/10\/Alfa-Romeo-with-Mustang-V8-01.jpg?fit=600%2C450&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":66517,"url":"https:\/\/engineswapdepot.com\/?p=66517","url_meta":{"origin":133763,"position":4},"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":[]},{"id":26830,"url":"https:\/\/engineswapdepot.com\/?p=26830","url_meta":{"origin":133763,"position":5},"title":"Alfa Romeo GT Junior with a Millington Diamond 2.7 L Inline-Four","author":"swaptastic","date":"August 23, 2018","format":false,"excerpt":"This Alfa Romeo GT Junior was built by Retropower in Wykin Village, United Kingdom. Under the carbon fiber hood sits a 2.7 L Millington Diamond Series 1 inline-four that makes 298 horsepower and 235 lb-ft of torque through a set of Jenvey throttle bodies. The drivetrain consists of a SADEV\u2026","rel":"","context":"In "105"","block_context":{"text":"105","link":"https:\/\/engineswapdepot.com\/?cat=278"},"img":{"alt_text":"Alfa Romeo GT Junior with a Millington Diamond 2.7 L Inline-Four","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/08\/Alfa-Romeo-GT-Junior-with-a-Millington-Diamond-2.7-L-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\/2018\/08\/Alfa-Romeo-GT-Junior-with-a-Millington-Diamond-2.7-L-Inline-Four-01.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/08\/Alfa-Romeo-GT-Junior-with-a-Millington-Diamond-2.7-L-Inline-Four-01.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/08\/Alfa-Romeo-GT-Junior-with-a-Millington-Diamond-2.7-L-Inline-Four-01.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2018\/08\/Alfa-Romeo-GT-Junior-with-a-Millington-Diamond-2.7-L-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\/133763","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=133763"}],"version-history":[{"count":16,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/133763\/revisions"}],"predecessor-version":[{"id":133793,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/posts\/133763\/revisions\/133793"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=\/wp\/v2\/media\/133779"}],"wp:attachment":[{"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=133763"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=133763"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/engineswapdepot.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=133763"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}