{"id":155151,"date":"2026-11-10T14:56:37","date_gmt":"2026-11-10T20:56:37","guid":{"rendered":"https:\/\/engineswapdepot.com\/?p=155151"},"modified":"2026-11-10T14:56:37","modified_gmt":"2026-11-10T20:56:37","slug":"1965-pontiac-gto-with-a-supercharged-lt4","status":"publish","type":"post","link":"https:\/\/engineswapdepot.com\/?p=155151","title":{"rendered":"1965 Pontiac GTO with a Supercharged LT4"},"content":{"rendered":"

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Ringbrothers<\/a> spent 5,500 hours building a special 1965 Pontiac GTO Convertible called “Billie” at their company in Wisconsin. The project is powered by a supercharged LT4 V8 providing 650 hp (478 kW) and 650 lb-ft (881 Nm) of torque. Behind that is a Bowler Tru-Street 10L90 10-speed automatic transmission and independent rear end. Ringbrothers upgraded the car’s handling with a Roadster Shop Fast Track Stage 3 chassis<\/a> featuring a fully independent suspension, custom longer front control arms, C7 Corvette end links, and Fox RS SV adjustable coilovers. Braking is handled by Brembo six-piston calipers in the front and rear. Ringbrothers spent most of their time on the body. They widened the car five inches and extended rockers down and forward. They fabricated a custom floor, trunk, firewall, and tunnel. They added carbon fiber hood, lower valance, and rear diffuser. Ringbrothers covered the body in BASF Galsurit “Billie Goat Blue” paint. The car rolls on a set of HRE G-Code wheels (19×10.5, 20×13) with Michelin Pilot Sport Sport Cup 2 (295\/35, 345\/30). <\/p>\n

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Source: photos by David Heller and CenterScene<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Ringbrothers spent 5,500 hours building a special 1965 Pontiac GTO Convertible called “Billie” at their company in Wisconsin. The project is powered by a supercharged LT4 V8 providing 650 hp (478 kW) and 650 lb-ft (881 Nm) of torque. Behind that is a Bowler Tru-Street 10L90 10-speed automatic transmission and independent rear end. Ringbrothers upgraded… Read More »1965 Pontiac GTO with a Supercharged LT4<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":155156,"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_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[167],"tags":[],"class_list":["post-155151","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gto"],"jetpack-related-posts":[{"id":107688,"url":"https:\/\/engineswapdepot.com\/?p=107688","url_meta":{"origin":155151,"position":0},"title":"1969 Pontiac GTO with a 755 hp Supercharged LT5 V8","author":"swaptastic","date":"November 16, 2023","format":false,"excerpt":"Detroit Speed built this 1969 Pontiac GTO for Kevin Hart at their company in Mooresville, North Carolina. Under the modified hood sits a supercharged 6.2 L LT5 V8 crate motor producing 755 hp and 715 lb-ft of torque. 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The wagon is powered by a supercharged 6.2 L LT4 V8 making 640-650 hp and 630-650 lb-ft of torque. Behind the motor is a 10L90E 10-speed automatic transmission and Ford 9-inch rear end\u2026","rel":"","context":"In "Chevelle"","block_context":{"text":"Chevelle","link":"https:\/\/engineswapdepot.com\/?cat=116"},"img":{"alt_text":"1965 Chevelle Wagon with a Supercharged LT4 V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/05\/1965-Chevelle-Wagon-with-a-Supercharged-LT4-V8-01.jpg?fit=1200%2C752&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/05\/1965-Chevelle-Wagon-with-a-Supercharged-LT4-V8-01.jpg?fit=1200%2C752&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/05\/1965-Chevelle-Wagon-with-a-Supercharged-LT4-V8-01.jpg?fit=1200%2C752&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/05\/1965-Chevelle-Wagon-with-a-Supercharged-LT4-V8-01.jpg?fit=1200%2C752&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/05\/1965-Chevelle-Wagon-with-a-Supercharged-LT4-V8-01.jpg?fit=1200%2C752&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":115212,"url":"https:\/\/engineswapdepot.com\/?p=115212","url_meta":{"origin":155151,"position":2},"title":"1975 Pontiac Trans Am with a 900 hp Supercharged LT4 V8","author":"swaptastic","date":"May 8, 2024","format":false,"excerpt":"This 1975 Pontiac Trans Am 455 arrived at Schwartz Performance for a complete makeover. The company used their experience and a lot of modern parts to transform this classic F-body into a pro-touring monster. Schwartz Performance started by disassembling the car and chemically stripped the body to reveal issues and\u2026","rel":"","context":"In "Firebird"","block_context":{"text":"Firebird","link":"https:\/\/engineswapdepot.com\/?cat=177"},"img":{"alt_text":"pro-touring 1975 Pontiac Trans Am with a supercharged LT4 V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/05\/1975-Pontiac-Trans-Am-with-a-Supercharged-LT4-V8-08.jpg?fit=1200%2C802&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/05\/1975-Pontiac-Trans-Am-with-a-Supercharged-LT4-V8-08.jpg?fit=1200%2C802&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/05\/1975-Pontiac-Trans-Am-with-a-Supercharged-LT4-V8-08.jpg?fit=1200%2C802&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/05\/1975-Pontiac-Trans-Am-with-a-Supercharged-LT4-V8-08.jpg?fit=1200%2C802&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/05\/1975-Pontiac-Trans-Am-with-a-Supercharged-LT4-V8-08.jpg?fit=1200%2C802&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":45153,"url":"https:\/\/engineswapdepot.com\/?p=45153","url_meta":{"origin":155151,"position":3},"title":"1971 Pontiac GTO with a Supercharged LSX V8","author":"swaptastic","date":"August 29, 2019","format":false,"excerpt":"Roadster Shop built this 1971 Pontiac GTO called \"The Judge\" for owner Fermin Adames. 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The car is powered by a supercharged 416 ci LS3 V8 built by Sullivan Performance. 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