Building a custom turbo setup around a Gen V LT engine? Speed Engineering's 1-3/4" forward facing upward turbo headers give you a solid, well-built foundation to work from. Built from polished 304 stainless steel with mandrel-bent primary tubes, CNC-machined flanges, a 3" V-band collector, and a built-in mounting location for a 44mm wastegate — everything you need to start building your turbo system the right way.
These are completely universal headers not designed for any specific vehicle application. Tested for fitment on 2014–2019 Classic Chevrolet Silverado and GMC Sierra 1500 applications.
⚠️ Important Notes:
- Gen V LT engines only — compatible with 5.3L and 6.2L LT1 and LT4 engines
- Some swap vehicles may require modifications or replacements of factory A/C and/or brake components
- Ignition coil compatibility — works with Speed Engineering ignition coils (26-1028) or factory D510C coils mounted on the factory valve covers with factory brackets
Features:
- 1-3/4" Primary Tubes — Sized for turbo applications on Gen V LT engines
- 3" V-Band Collector — Forward facing upward orientation for turbocharger placement flexibility
- Built-In 44mm Wastegate Mounting Location — No fabrication required for wastegate integration
- 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 — Corrosion resistant, heat tolerant, and built to last
- Standard Graphite Manifold Gaskets Included
- Compatible with 5.3L, 6.2L, LT1, and LT4 Engines
- V8 LT Engines Only
Compatible Engines:
- GM Gen V 5.3L LT
- GM Gen V 6.2L LT1
- GM Gen V 6.2L LT4
Tested Vehicle Applications:
Note: These are universal headers tested for fitment on the following vehicles. They are not exclusive to these applications.
Chevrolet Silverado 1500 (2WD/4WD)
- 2014 Chevrolet Silverado 1500 (2WD/4WD) — 5.3L/6.2L
- 2015 Chevrolet Silverado 1500 (2WD/4WD) — 5.3L/6.2L
- 2016 Chevrolet Silverado 1500 (2WD/4WD) — 5.3L/6.2L
- 2017 Chevrolet Silverado 1500 (2WD/4WD) — 5.3L/6.2L
- 2018 Chevrolet Silverado 1500 (2WD/4WD) — 5.3L/6.2L
- 2019 Chevrolet Silverado 1500 Classic (2WD/4WD) — 5.3L/6.2L
GMC Sierra 1500 (2WD/4WD)
- 2014 GMC Sierra 1500 (2WD/4WD) — 5.3L/6.2L
- 2015 GMC Sierra 1500 (2WD/4WD) — 5.3L/6.2L
- 2016 GMC Sierra 1500 (2WD/4WD) — 5.3L/6.2L
- 2017 GMC Sierra 1500 (2WD/4WD) — 5.3L/6.2L
- 2018 GMC Sierra 1500 (2WD/4WD) — 5.3L/6.2L
- 2019 GMC Sierra 1500 Classic (2WD/4WD) — 5.3L/6.2L
Frequently Asked Questions:
Q: What vehicles do these headers fit? These are completely universal headers and are not designed for any specific vehicle application. They have been tested for fitment on 2014–2019 Classic Chevrolet Silverado and GMC Sierra 1500 models with 5.3L and 6.2L LT engines. Other applications may require modifications.
Q: What direction do the collectors face? The collectors face forward and upward, making these headers suited for custom turbo builds where turbocharger placement requires that orientation.
Q: Do these headers have a wastegate mounting location? Yes. These headers feature a built-in mounting location for a 44mm wastegate, eliminating the need for additional fabrication to integrate boost control.
Q: What ignition coils are compatible with these headers? These headers are compatible with Speed Engineering ignition coils (26-1028) and factory D510C coils mounted on the factory valve covers with factory brackets.
Q: Will my A/C or brake components need modification? Some swap vehicle applications may require modifications or replacements of factory A/C and/or brake components for proper fitment.
Q: What engines are these headers compatible with? Compatible with GM Gen V LT V8 engines including 5.3L, 6.2L, LT1, and LT4.
Q: What size is the collector and what type is it? The collector is a 3" V-band design for a secure, leak-free connection to your turbo or downpipe.
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 with the headers.
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).
