Building a turbocharged LS swap and need headers engineered for an upward-facing turbo placement? Speed Engineering's 1-3/4" forward facing upward LS turbo headers are purpose-built for the job — featuring a built-in 44mm wastegate mounting location, a 3" V-band collector, and polished 304 stainless construction. Originally designed around the LS1 accessory drive from a 1998–2002 Camaro, these headers have been tested and confirmed to fit 1968–1977 A-body, 1970–1981 F-body, and 1967–1987 C10 truck platforms. Compatible with the full LS engine family from 4.8L through 6.2L including LS1, LS2, LS3, and LS6.
⚠️ Important Installation Notes:
- LS swap applications only — these headers are NOT compatible with SBC or BBC engines
- Coil relocation is required — coils must be relocated to a remote area for installation
- Some swap vehicles may require modifications or replacements of factory A/C and/or brake components for proper fitment
- Designed using the LS1 accessory drive from a 1998–2002 Camaro — other accessory drive configurations may affect fitment
Features:
- 1-3/4" Primary Tubes — Sized for turbo applications on LS V8 engines
- 3" V-Band Collector — Secure, leak-free collector connection with a clean turbo-ready interface
- Built-In 44mm Wastegate Mounting Location — Eliminates the need for a separate wastegate flange fabrication
- Forward Facing Upward Orientation — Turbocharger placement flexibility for custom upward-exit turbo builds
- Short Collector Design — Compact profile for tight engine bay turbo routing
- Mandrel Bent Tubing — Consistent tube diameter throughout; no crimping, no restriction
- CNC Machined Flanges — Precision fit at the cylinder head for a leak-free seal
- Polished 304 Stainless Steel Construction — Show-quality finish, corrosion resistant and built to last
- Standard Graphite Manifold Gaskets Included
- Compatible with 4.8L, 5.3L, 6.0L, 6.2L, LS1, LS2, LS3, and LS6 Engines
- V8 LS Engines Only
Compatible Engines:
- GM LS V8 — 4.8L, 5.3L, 6.0L, 6.2L
- GM LS1, LS2, LS3, LS6
Tested Vehicles:
This is a universal turbo header designed for LS swap builds. The following platforms have been tested for fitment. Other LS swap applications may work but have not been confirmed.
- 1968–1977 GM A-Body (Chevelle, El Camino, etc.)
- 1970–1981 GM F-Body (Camaro, Firebird)
- 1967–1987 Chevrolet/GMC C10 Trucks
FAQ
Do I need to relocate my ignition coils to install these headers?
Yes. Coil relocation to a remote area is required for proper installation of these headers.
What wastegate size is the built-in mounting location designed for?
The built-in wastegate mounting location is sized for a 44mm wastegate.
What accessory drive configuration were these headers designed around?
These headers were originally designed using the LS1 accessory drive from a 1998–2002 Camaro. Other accessory drive setups may affect fitment and should be verified before ordering.
Will these headers work on my factory engine?
No. These headers are designed for GM LS engine swaps only and are not compatible with SBC or BBC engines.
What is the difference between these headers and the forward facing DOWN Coyote or SBF turbo headers?
The key differences are the engine family and collector orientation. Part 25-1056 is designed for GM LS V8 engines with the turbocharger placed forward and upward. The Coyote (25-1175) and SBF (25-1176) turbo headers are for Ford engines with a downward-facing collector orientation.
What collector size and type does this header use?
These headers use a 3" V-band collector for a secure, clean connection to your turbo or exhaust system.
What material are these headers made from?
Polished 304 stainless steel with full TIG-welded construction and CNC-machined flanges.
Are gaskets included?
Yes. Standard graphite manifold gaskets are included.
Are these headers street legal?
No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).
⚠️ Race Use Only: This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).
