{"product_id":"lt1-lt4-swap-conversion-shorty-headers","title":"LT1\/LT4 Swap Conversion Shorty Headers","description":"The Speed Engineering LT1\/LT4 Swap Conversion headers are shorty headers constructed from 304 stainless steel, designed to offer a balance of quality, performance, and affordability. These headers feature mandrel-bent tubing, TIG welding, and a polished finish. They are specifically engineered for LT Gen 5 series engine swaps and are compatible only with V8 engines, including 5.3L, 6.2L, 6.6L, LT1, LT4, and L8T\/L8P engines from 2014 onwards.\n\nThese headers boast several improved features over competitors, including V-band collector construction, collector merge spikes, port-matched flanges, and enhanced header-to-block\/chassis clearance. With 1-5\/8 inch primaries and a 2-1\/2 inch collector, they are dyno proven to provide gains of over 18+ rear-wheel horsepower. The CNC-machined flanges ensure precise fitment, and they come with standard graphite manifold gaskets.\n\nImportant notes for installation include that these headers are for LT Gen 5 series engine swaps only and will not work on standard SBC or BBC engines. If using a larger 4L80E or older Turbo 350\/400 transmission, some trimming of the bellhousing ears may be necessary for clearance. They accommodate 6, 8, and 10-speed automatic transmissions.\n\nVehicle applications include 1960's and 1970's Camaro and Firebird models, 1968-1974 Chevrolet Nova (early 60s may require an aftermarket steering shaft), 1968-1972 Chevelle (early 60s may require an aftermarket steering shaft), 1960-1987 C10, K10, Chevy \u0026amp; GMC Trucks, and 1989-1999 C1500 \u0026amp; K1500. Please be aware that this is a RACE ONLY product intended solely for competition use. Installation on a vehicle that will be used on public roads or highways may violate the Clean Air Act.","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":52663769694520,"sku":"25-1057","price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687686681.jpg?v=1784329445","url":"https:\/\/store.motormia.co\/products\/lt1-lt4-swap-conversion-shorty-headers","provider":"MOTORMIA","version":"1.0","type":"link"}