Speed Engineering LT Swap 1 7/8" Longtube Headers - C10/K10, A/F/X & B-Body
Speed Engineering Gen V LT swap 1 7/8-inch longtube headers are made from natural 304 stainless steel with mandrel-bent, TIG-welded tubing, 3-inch collectors, merge spikes and CNC-machined flanges. Includes standard graphite manifold gaskets.
SKU 25-1058 is reused by Speed Engineering across multiple listings: 1960-1987 C10/K10 trucks; 1970-1981 Camaro and Firebird; 1968-1977 Chevelle and Cutlass; 1975-1979 Nova; 1968-1981 El Camino and Pontiac LeMans; 1970-1981 Monte Carlo; 1968-1972 GTO and Skylark; 1977-1981 Grand Prix; 1978-1981 Buick Grand National; and 1971-1996 Caprice/Impala B-body applications. Confirm chassis and swap clearance before ordering.
SMG upgrades
Upgrade to vehicle-correct SMG LT MLS gaskets and/or add our 8mm SMG 9070C Ceramic Plug Wires. Their ceramic boots resist header heat and melting, and they are the only plug wires we use on SMG in-house header builds.
Processing & Shipping Overview
Processing occurs before shipping.
Most in-stock items typically process within 2–3 business days before shipment or pickup. Expedited shipping options affect transit time after an order ships and do not speed up processing.
Made-to-order, special-order, vendor drop-ship, and freight items require additional processing time before shipping. Any extended lead times will be noted on the product page when applicable.
For the most up-to-date order status or lead time questions, please contact sales@smgspeed.com or use live chat during business hours.