SKU: 25-1025
Speed Engineering LS Swap Longtube headers are made out of 304 stainless steel and offer great quality, performance, and affordability. Our LS swap longtube headers are mandrel bent, tig welded, and feature natural stainless steel construction. All of our LS swap longtube headers have been dyno proven. We stand behind our LS swap longtube headers in saying you will not find a better fitting, quality built, budget header for your vehicle.
Features include:
Vehicles:
Note: Installed pictures are of our 1 7/8" headers with 1" offset back motor mounts.
Note: "Due to older vehicle frame clearance headers are pulled in very tight, and require our spark plug wires".
Note: "For LS series engine swaps only" These do not work on standard SBC or BBC engines.
Note: If using a larger 4L80E or older Turbo 350/400 transmission the bellhousing ears may need to be trimmed for proper clearance.
(Warning) This is a RACE ONLY product manufactured and sold for installation on vehicles to be used solely for competition purposes. Once this part is installed, the vehicle may never be used, or registered or licensed for use, on a public road or highway. If you install this part on your vehicle and use the vehicle on a public road or highway, you will violate the Clean Air Act 203(a)(3), 42 U.S.C, 7522(a)(3) and may be subject to personal civil or criminal liability.
I ordered these after trying 2 other brands without success. I had them installed on my LS swapped 74 Chevelle with a 5.3 and 4L60e in under 30 minutes. I’m using stock clam shell mounts with aluminum adapter plates with the engine back as far as it would go. This is the first set of long tube headers I’ve ever installed that I didn’t have to clearance a single tube on. Nice thick flanges, beautiful welds, plenty of clearance even on the passenger side frame a-arm mount. They tuck tight to the block and heads which was nice. I’m glad I ordered the plug wires and fire sleeves too. Probably didn’t even need the sleeves since there was great clearance around all the plugs but they can’t hurt and look nice. I already recommend these to a friend that is probably going to also order a set.
Put these in my 67 el camino ls swap with a 4l80e. They fit really well for the cost. Had to barely dimple one tube on the driver side. Passenger side required trimming off the rear of the 4l80e bellhousing just like they said.