{"id":139949,"date":"2025-10-21T06:00:02","date_gmt":"2025-10-21T11:00:02","guid":{"rendered":"https:\/\/engineswapdepot.com\/?p=139949"},"modified":"2025-10-21T01:20:39","modified_gmt":"2025-10-21T06:20:39","slug":"runge-cars-5-3-l-flat-eight","status":"publish","type":"post","link":"https:\/\/engineswapdepot.com\/?p=139949","title":{"rendered":"Runge Cars’ 5.3 L Flat-Eight"},"content":{"rendered":"

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

Christopher Runge builds custom cars at his company Runge Cars<\/a> in Alexandria, Minnesota. Christopher’s newest creation is a 780 kg (1719 lb) mid-engine supercar called the Runge R3. The power plant for the R3 is an air-cooled 5.3 L “Hetzer” flat-eight. The motor was developed with help from Swindon Powertrain<\/a> and air-cooled specialist Sol Snyderman. The motor features a 102.7 mm bore, 80.4 mm stroke, 12:1 compression, and 9,000 rpm redline. It will be a bolt-in replacement for the Porsche M64 flat-six. Full engine specs and pricing is expected later this year. <\/p>\n

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

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

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

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

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

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

Source: Runge Cars FB page<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Christopher Runge builds custom cars at his company Runge Cars in Alexandria, Minnesota. Christopher’s newest creation is a 780 kg (1719 lb) mid-engine supercar called the Runge R3. The power plant for the R3 is an air-cooled 5.3 L “Hetzer” flat-eight. The motor was developed with help from Swindon Powertrain and air-cooled specialist Sol Snyderman.… Read More »Runge Cars’ 5.3 L Flat-Eight<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":139952,"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,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[1323],"tags":[],"class_list":["post-139949","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-runge-flat-eight"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/10\/Runge-Cars-5.3-L-Hetzer-flat-eight-01.jpg?fit=1005%2C526&ssl=1","jetpack-related-posts":[{"id":60499,"url":"https:\/\/engineswapdepot.com\/?p=60499","url_meta":{"origin":139949,"position":0},"title":"Subaru Legacy with a 700+ hp Turbo 2.35 L Flat-Four Update","author":"swaptastic","date":"September 2, 2020","format":false,"excerpt":"Damien Bradley and his Team Legacy UK 1992 Subaru Legacy race car suffered a crash last year. 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