SKU: 25-1026
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: Headers do not hang below the frame and offer ground clearance with air ride suspension and lowered suspension. Customers have installed this product on Choppin Block, Roadster Shop(with Pro spindles), Porterbuilt, and other front drop members with air ride and coil over suspension.
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.
Note: "Does not fit 4wd"
(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'm still giving these a 5 star even though they don't exactly fit my application. The #1 primary hits the head stud and the #4 hits the OEM engine mount. I have a 1970 GMC 1500. LM7 block, LS1 heads with head studs. I'm using the SBC style mounts.
You may not run into this, but do be aware it may not fit every application (don't be afraid of the hammer if it doesn't fit!).
They fit perfect in my 88 Ls brougham caprice classic with no problems . Didn’t have to modify or adjust anything . Bolted up fine and fit in there perfect & yes it’s they’re on my LS motor ( did a LS swap )
Fit my 72 c10 6.0 LS swap very well. These are easily the best bang for your buck headers.
I bought these for a 1970 c10 with a gen 3 5.3 ls and 4l60e trans swap. They fit great. Installation was easy, the don't come in contact with the frame or trans or anything and aren't overly priced either.
I purchased these in person in the shop today, I was a bit nervous about their fit because so many big name places claim theirs will fit 73-87 C10s but many do not fit at all. These are a perfect fit and require zero cutting of the frame or crossmember. The only modification these needed to work on my truck is a simple one. Cut the passenger side transmission ear off with a grinder. To be fair this is likely because I'm using an early style 4L80E. I couldnt be happier with this product. Well done, Speed Engineering. Just so we're clear I'm in no way paid to leave this review and I do not work for/with Speed Engineering. I'm just a happy customer who is very glad to pass along the good news to fellow 73-87 C10 owners. Now theres more options than just Trail Blazer SS headers, which can be very expensive.