{"id":148121,"date":"2026-06-12T14:17:22","date_gmt":"2026-06-12T19:17:22","guid":{"rendered":"https:\/\/engineswapdepot.com\/?p=148121"},"modified":"2026-06-12T14:17:22","modified_gmt":"2026-06-12T19:17:22","slug":"jaguar-xj6-with-a-4-0-l-aj16-inline-six","status":"publish","type":"post","link":"https:\/\/engineswapdepot.com\/?p=148121","title":{"rendered":"Jaguar XJ6 with a 4.0 L AJ16 Inline-Six"},"content":{"rendered":"

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This Jaguar XJ6 Series 1 originally came with either a 2.8 L or 4.2 L XK inline-six. KC Performance<\/a> was tasked with swapping a 4.0 L AJ16<\/a> inline-six from a Jaguar XJS<\/a> or XJ6. The more modern motor benefits from drive-by-wire throttle body, upgraded radiator, and standalone Ecumaster Black ECU. Behind the motor is ZF 4HP four-speed<\/a> automatic transmission controlled by a HTG Tuning ECU. KC Performance improved the handling with upgraded front brakes calipers and vented rotors. They completed the appearance with black bumpers, grill, trim and a set of 18-inch wheels.<\/p>\n

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

This Jaguar XJ6 Series 1 originally came with either a 2.8 L or 4.2 L XK inline-six. KC Performance was tasked with swapping a 4.0 L AJ16 inline-six from a Jaguar XJS or XJ6. The more modern motor benefits from drive-by-wire throttle body, upgraded radiator, and standalone Ecumaster Black ECU. Behind the motor is ZF… Read More »Jaguar XJ6 with a 4.0 L AJ16 Inline-Six<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":149767,"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_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[1350],"tags":[],"class_list":["post-148121","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-xj6"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2026\/06\/Jaguar-XJ6-with-a-4.0-L-AJ16-Inline-Six-01.jpg?fit=2200%2C1571&ssl=1","jetpack-related-posts":[{"id":106263,"url":"https:\/\/engineswapdepot.com\/?p=106263","url_meta":{"origin":148121,"position":0},"title":"1987 Jaguar XJ6 with a BMW M60 V8","author":"swaptastic","date":"October 18, 2023","format":false,"excerpt":"Shaun Barnes built his 1987 Jaguar XJ6 Series 3 at his co-owned company Keltec Performance in Leeds, England. Shaun swapped the factory 5.3 L V12 for a 4.0 L BMW M60B40 V8. The motor runs a custom exhaust fabricated by Keltec Performance and pairs with a five-speed manual transmission. The\u2026","rel":"","context":"In "XJ"","block_context":{"text":"XJ","link":"https:\/\/engineswapdepot.com\/?cat=661"},"img":{"alt_text":"1987 Jaguar XJ6 with a BMW M60 V8","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/10\/1987-Jaguar-XJ6-with-a-BMW-M60-V8-01.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/10\/1987-Jaguar-XJ6-with-a-BMW-M60-V8-01.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/10\/1987-Jaguar-XJ6-with-a-BMW-M60-V8-01.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/10\/1987-Jaguar-XJ6-with-a-BMW-M60-V8-01.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/10\/1987-Jaguar-XJ6-with-a-BMW-M60-V8-01.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":107045,"url":"https:\/\/engineswapdepot.com\/?p=107045","url_meta":{"origin":148121,"position":1},"title":"1969 Jaguar E-Type with a 2JZ-GTE","author":"swaptastic","date":"November 2, 2023","format":false,"excerpt":"Faruk Kugay enjoys swapping Japanese motors into European vehicles at his company DevSpeed Motorsports. At the Eneos' SEMA 2022 booth he debuted a Porsche 911 GT3 with a turbocharged Subaru EJ25 flat-four. This year he brought a 1969 Jaguar E-Type 2+2 with a 2JZ-GTE inline-six. Under the classic long hood\u2026","rel":"","context":"In "E-Type"","block_context":{"text":"E-Type","link":"https:\/\/engineswapdepot.com\/?cat=442"},"img":{"alt_text":"1969 Jaguar E-Type with a 2JZ-GTE inline-six","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/11\/1969-Jaguar-E-Type-with-a-2JZ-GTE-01.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/11\/1969-Jaguar-E-Type-with-a-2JZ-GTE-01.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/11\/1969-Jaguar-E-Type-with-a-2JZ-GTE-01.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/11\/1969-Jaguar-E-Type-with-a-2JZ-GTE-01.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2023\/11\/1969-Jaguar-E-Type-with-a-2JZ-GTE-01.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":119583,"url":"https:\/\/engineswapdepot.com\/?p=119583","url_meta":{"origin":148121,"position":2},"title":"Nissan Patrol with a Turbo Barra Inline-Six","author":"swaptastic","date":"August 15, 2024","format":false,"excerpt":"This Nissan Patrol Y61 was sent to Maxx Performance for a dyno tune. In the engine bay is a turbocharged 4.0 L Barra (BF) inline-six paired with a ZF 6HP six-speed automatic transmission. The motor features upgraded valve springs, head studs, and oil pump gears. It also has a Pulsar\u2026","rel":"","context":"In "Patrol"","block_context":{"text":"Patrol","link":"https:\/\/engineswapdepot.com\/?cat=192"},"img":{"alt_text":"Nissan Patrol with a Turbo Barra Inline-Six","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/08\/Nissan-Patrol-with-a-Turbo-Barra-Inline-Six-01.jpg?fit=960%2C720&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/08\/Nissan-Patrol-with-a-Turbo-Barra-Inline-Six-01.jpg?fit=960%2C720&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/08\/Nissan-Patrol-with-a-Turbo-Barra-Inline-Six-01.jpg?fit=960%2C720&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2024\/08\/Nissan-Patrol-with-a-Turbo-Barra-Inline-Six-01.jpg?fit=960%2C720&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":130159,"url":"https:\/\/engineswapdepot.com\/?p=130159","url_meta":{"origin":148121,"position":3},"title":"Lexus GS300 with a Turbo Ford Inline-Six","author":"swaptastic","date":"April 8, 2025","format":false,"excerpt":"Roots Motorsports visited Island Boy Tuning to showcase a special Lexus GS300. The sedan is powered by a turbocharged 4.0 L Ford Barra inline-six swapped by Brian Ramsarran at Extreme Motorsports. The motor features upgraded internals, Plazmaman intake manifold and fuel rail, Precision 8695 turbocharger, and custom 4-inch stainless steel\u2026","rel":"","context":"In "GS300"","block_context":{"text":"GS300","link":"https:\/\/engineswapdepot.com\/?cat=135"},"img":{"alt_text":"Lexus GS300 with a Turbo Ford Barra Inline-Six","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/04\/Lexus-GS300-with-a-Turbo-Ford-Barra-Inline-Six-01.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/04\/Lexus-GS300-with-a-Turbo-Ford-Barra-Inline-Six-01.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/04\/Lexus-GS300-with-a-Turbo-Ford-Barra-Inline-Six-01.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/04\/Lexus-GS300-with-a-Turbo-Ford-Barra-Inline-Six-01.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2025\/04\/Lexus-GS300-with-a-Turbo-Ford-Barra-Inline-Six-01.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":4873,"url":"https:\/\/engineswapdepot.com\/?p=4873","url_meta":{"origin":148121,"position":4},"title":"1966 Jaguar Mark X with a Modern XJR-6 Powertrain","author":"swaptastic","date":"November 6, 2014","format":false,"excerpt":"Jaguar really designed an amazing looking car in the Mark X. Unfortunately its performance was never intended to match its looks. But someone corrected that with this Mark X by installing the complete powertrain from a 1996 Jaguar XJR-6. That means the fully independent suspension, high performance ABS brakes, four-speed\u2026","rel":"","context":"In "Mark X"","block_context":{"text":"Mark X","link":"https:\/\/engineswapdepot.com\/?cat=581"},"img":{"alt_text":"1966 Jaguar Mark X with 1996 XJR-6 4.0L inline-six motor","src":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2014\/11\/1966-Jaguar-Mark-X-With-supercharged-XJR-6-01.jpg?fit=1200%2C803&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2014\/11\/1966-Jaguar-Mark-X-With-supercharged-XJR-6-01.jpg?fit=1200%2C803&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2014\/11\/1966-Jaguar-Mark-X-With-supercharged-XJR-6-01.jpg?fit=1200%2C803&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2014\/11\/1966-Jaguar-Mark-X-With-supercharged-XJR-6-01.jpg?fit=1200%2C803&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/engineswapdepot.com\/wp-content\/uploads\/2014\/11\/1966-Jaguar-Mark-X-With-supercharged-XJR-6-01.jpg?fit=1200%2C803&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":133797,"url":"https:\/\/engineswapdepot.com\/?p=133797","url_meta":{"origin":148121,"position":5},"title":"Mustang with a Turbo Barra Goes 8.4 sec","author":"swaptastic","date":"June 27, 2025","format":false,"excerpt":"Chris Porter from Jackstand Barra built a fifth-generation Ford Mustang (S197) for drag racing. The car is now powered by a turbocharged 4.0 L Ford Barra inline-six. It features forged rods and pistons, Kelford 218B camshafts, Forced Performance 7875 turbocharger, and Fueltech FT550 ECU. 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