{"product_id":"texas-speed-l86-intake-manifold-swap-kit-for-l83-5-3l-tsp-l86intake-kit","title":"Texas Speed L86 Intake Manifold Swap Kit for L83 5.3L — 2014-2020 GM Gen V 5.3L L83 Trucks \u0026 SUVs | TSP-L86Intake-Kit","description":"\u003cp\u003eThe Texas Speed L86 Intake Manifold Swap Kit upgrades a GM 5.3L L83 engine to the larger factory intake manifold and throttle body used on the 6.2L L86. The swap is a common L83 upgrade because it improves airflow and adds horsepower while keeping a stock GM appearance and fitment under the hood. Texas Speed estimates a gain of 8 to 10 horsepower depending on tuning and other modifications.\u003c\/p\u003e\u003cp\u003eThe kit assembles the genuine GM L86 intake manifold, intake manifold gasket seals, throttle body gasket and PCV tube with your choice of the standard GM L86 throttle body or a Katech CNC ported 87mm throttle body for additional airflow. ECU tuning is required after installation, and because the L86 throttle body is larger than the L83 unit, a different intake tube coupler may be needed and is not included.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eApplication: GM 5.3L L83 engines (2014 to 2018 Silverado 1500 and Sierra 1500, 2015 to 2020 Tahoe, Suburban and Yukon per Texas Speed)\u003c\/li\u003e\n\u003cli\u003eIntake manifold: Genuine GM L86 6.2L intake manifold (GM 12639087)\u003c\/li\u003e\n\u003cli\u003eThrottle body options: GM L86 throttle body (GM 12740727) or Katech CNC ported 87mm throttle body (KAT-A6856), selected at ordering\u003c\/li\u003e\n\u003cli\u003eGaskets: Intake manifold gasket seals, 8 (GM 12626354), and L86 throttle body gasket (GM 12639086)\u003c\/li\u003e\n\u003cli\u003ePCV tube: GM PCV tube (GM 12650610)\u003c\/li\u003e\n\u003cli\u003eEstimated gain per Texas Speed: 8 to 10 horsepower, depending on tuning and modifications\u003c\/li\u003e\n\u003cli\u003eTuning: ECU tuning required\u003c\/li\u003e\n\u003cli\u003eDoes not fit 2022 and newer vehicles with five-terminal throttle bodies\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKit Includes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGenuine GM L86 6.2L intake manifold, bare (GM 12639087)\u003c\/li\u003e\n\u003cli\u003eGM intake manifold gasket seals, qty 8 (GM 12626354)\u003c\/li\u003e\n\u003cli\u003eGM L86 throttle body gasket (GM 12639086)\u003c\/li\u003e\n\u003cli\u003eGM PCV tube (GM 12650610)\u003c\/li\u003e\n\u003cli\u003eThrottle body: GM L86 (GM 12740727) or Katech CNC ported 87mm (KAT-A6856), selected at ordering\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOrdering Options\u003c\/h3\u003e\u003cp\u003eSelect the Throttle Body option when ordering: the standard GM L86 throttle body (GM 12740727) or the Katech CNC ported 87mm throttle body (KAT-A6856). The Katech throttle body replaces the GM L86 throttle body in the kit rather than adding to it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e ECU tuning is required when installing the L86 intake manifold and throttle body on an L83 engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The L86 throttle body is larger than the factory L83 throttle body. Depending on the cold air intake in use, a larger or different coupler may be required to connect the intake tube, and it is not included in this kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Does not fit 2022 and newer vehicles with five-terminal throttle bodies. Confirm the throttle body connector terminal count before ordering.\u003c\/p\u003e\u003ch3\u003eVehicle Applications\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eGMC Sierra 1500\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2014 GMC Sierra 1500 — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2015 GMC Sierra 1500 — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2016 GMC Sierra 1500 — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2017 GMC Sierra 1500 — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2018 GMC Sierra 1500 — 5.3L L83\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eChevrolet Silverado 1500\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2014 Chevrolet Silverado 1500 — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2015 Chevrolet Silverado 1500 — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2016 Chevrolet Silverado 1500 — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2017 Chevrolet Silverado 1500 — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2018 Chevrolet Silverado 1500 — 5.3L L83\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eChevrolet Suburban\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2015 Chevrolet Suburban — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2016 Chevrolet Suburban — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2017 Chevrolet Suburban — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2018 Chevrolet Suburban — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2019 Chevrolet Suburban — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2020 Chevrolet Suburban — 5.3L L83\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eChevrolet Tahoe\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2015 Chevrolet Tahoe — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2016 Chevrolet Tahoe — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2017 Chevrolet Tahoe — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2018 Chevrolet Tahoe — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2019 Chevrolet Tahoe — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2020 Chevrolet Tahoe — 5.3L L83\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eGMC Yukon\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2015 GMC Yukon — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2016 GMC Yukon — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2017 GMC Yukon — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2018 GMC Yukon — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2019 GMC Yukon — 5.3L L83\u003c\/li\u003e\n\u003cli\u003e2020 GMC Yukon — 5.3L L83\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eVehicle applications reflect the fitment published by Texas Speed \u0026amp; Performance for this part number. Confirm your engine and cylinder head configuration before ordering.\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhat engines does the Texas Speed L86 intake manifold swap kit fit?\u003c\/h5\u003e\u003cp\u003eIt fits GM 5.3L L83 engines, with Texas Speed listing the 2014 to 2018 Silverado 1500 and Sierra 1500 and the 2015 to 2020 Tahoe, Suburban and Yukon. It does not fit 2022 and newer vehicles that use a five-terminal throttle body.\u003c\/p\u003e\u003ch5\u003eWhat is included in the L86 intake swap kit?\u003c\/h5\u003e\u003cp\u003eThe kit includes a genuine GM L86 6.2L intake manifold, eight intake manifold gasket seals, an L86 throttle body gasket, a GM PCV tube and your choice of the GM L86 throttle body or a Katech CNC ported 87mm throttle body.\u003c\/p\u003e\u003ch5\u003eHow much horsepower does the L86 intake add to an L83?\u003c\/h5\u003e\u003cp\u003eTexas Speed estimates a gain of 8 to 10 horsepower from the larger L86 intake manifold and throttle body on a 5.3L L83, with results depending on tuning, engine configuration and supporting modifications.\u003c\/p\u003e\u003ch5\u003eIs tuning required after installing the L86 intake on an L83?\u003c\/h5\u003e\u003cp\u003eYes. Texas Speed states that ECU tuning is required when the L86 intake manifold and throttle body are installed on an L83 engine.\u003c\/p\u003e\u003ch5\u003eWill my cold air intake connect to the L86 throttle body?\u003c\/h5\u003e\u003cp\u003eNot necessarily. The L86 throttle body is larger than the L83 throttle body, so depending on the intake in use a larger or different coupler may be needed to connect the intake tube. That coupler is not included in the kit.\u003c\/p\u003e\u003ch5\u003eShould I choose the GM L86 throttle body or the Katech ported throttle body?\u003c\/h5\u003e\u003cp\u003eThe GM L86 throttle body is the standard factory 6.2L unit and completes the swap as GM built it. The Katech CNC ported 87mm throttle body replaces it in the kit and is ported for additional airflow for builders who want to go a step further.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What engines does the Texas Speed L86 intake manifold swap kit fit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It fits GM 5.3L L83 engines, with Texas Speed listing the 2014 to 2018 Silverado 1500 and Sierra 1500 and the 2015 to 2020 Tahoe, Suburban and Yukon. It does not fit 2022 and newer vehicles that use a five-terminal throttle body.\"}}, {\"@type\": \"Question\", \"name\": \"What is included in the L86 intake swap kit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The kit includes a genuine GM L86 6.2L intake manifold, eight intake manifold gasket seals, an L86 throttle body gasket, a GM PCV tube and your choice of the GM L86 throttle body or a Katech CNC ported 87mm throttle body.\"}}, {\"@type\": \"Question\", \"name\": \"How much horsepower does the L86 intake add to an L83?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Texas Speed estimates a gain of 8 to 10 horsepower from the larger L86 intake manifold and throttle body on a 5.3L L83, with results depending on tuning, engine configuration and supporting modifications.\"}}, {\"@type\": \"Question\", \"name\": \"Is tuning required after installing the L86 intake on an L83?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. Texas Speed states that ECU tuning is required when the L86 intake manifold and throttle body are installed on an L83 engine.\"}}, {\"@type\": \"Question\", \"name\": \"Will my cold air intake connect to the L86 throttle body?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Not necessarily. The L86 throttle body is larger than the L83 throttle body, so depending on the intake in use a larger or different coupler may be needed to connect the intake tube. That coupler is not included in the kit.\"}}, {\"@type\": \"Question\", \"name\": \"Should I choose the GM L86 throttle body or the Katech ported throttle body?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The GM L86 throttle body is the standard factory 6.2L unit and completes the swap as GM built it. The Katech CNC ported 87mm throttle body replaces it in the kit and is ported for additional airflow for builders who want to go a step further.\"}}]}\u003c\/script\u003e","brand":"Texas Speed \u0026 Performance","offers":[{"title":"GM L86 Throttle Body (12740727)","offer_id":50903745527856,"sku":"TSP-L86Intake-Kit","price":504.56,"currency_code":"USD","in_stock":true},{"title":"Katech CNC Ported 87mm Throttle Body (KAT-A6856)","offer_id":50903745560624,"sku":"TSP-L86Intake-Kit","price":704.56,"currency_code":"USD","in_stock":true}],"url":"https:\/\/berryperformancesales.com\/products\/texas-speed-l86-intake-manifold-swap-kit-for-l83-5-3l-tsp-l86intake-kit","provider":"Berry Performance Sales","version":"1.0","type":"link"}