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
Frequently Asked Questions:
Q: 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.
Q: What wastegate size is the built-in mounting location designed for? The built-in wastegate mounting location is sized for a 44mm wastegate.
Q: 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.
Q: 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.
Q: 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.
Q: 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.
Q: What material are these headers made from? Polished 304 stainless steel with full TIG-welded construction and CNC-machined flanges.
Q: Are gaskets included? Yes. Standard graphite manifold gaskets are included.
Q: 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).
