Dropping an LS into your 3rd Gen Camaro or Firebird? Speed Engineering's 1-7/8" LS swap longtube headers are engineered specifically for the 1982–1992 third-gen F-body platform — mandrel bent, TIG-welded, and CNC-machined from 304 natural stainless steel with a merge spike and standard graphite manifold gaskets included. Compatible with the full LS engine family from 4.8L through 6.2L including LS1, LS2, LS3, LS6, and LSA. Dyno proven.
⚠️ Important Notes:
- LS swap applications only — these headers are NOT compatible with standard SBC or BBC engines
- 4L80E or older Turbo 350/400 transmission — bellhousing ears may need to be trimmed for proper clearance
Features:
- Full 1-7/8" Primary Tubes with Merge Spike — Maximum flow from cylinder head to collector for aggressive LS swap performance
- 3" Collector — Optimized for strong low-to-mid RPM torque
- Mandrel Bent Tubing — Consistent tube diameter through every bend; no crimping, no restriction
- CNC Machined Flanges — Precision fit at the cylinder head for a leak-free seal
- 304 Natural Stainless Steel Construction — Corrosion resistant, heat tolerant, and built to last
- Longtube Header Design — Maximum scavenging efficiency vs. shorty or mid-length headers
- Standard Graphite Manifold Gaskets Included
- Dyno Proven
- Compatible with 4.8L, 5.3L, 6.0L, 6.2L, LS1, LS2, LS3, LS6, and LSA Engines
- V8 LS Engines Only
Vehicle Applications:
Note: All applications listed are LS swap conversions. These headers are not compatible with the original factory engines in these vehicles.
Chevrolet Camaro — 3rd Gen F-Body (RWD) — LS Swap
- 1982 Chevrolet Camaro (RWD) — LS Swap
- 1983 Chevrolet Camaro (RWD) — LS Swap
- 1984 Chevrolet Camaro (RWD) — LS Swap
- 1985 Chevrolet Camaro (RWD) — LS Swap
- 1986 Chevrolet Camaro (RWD) — LS Swap
- 1987 Chevrolet Camaro (RWD) — LS Swap
- 1988 Chevrolet Camaro (RWD) — LS Swap
- 1989 Chevrolet Camaro (RWD) — LS Swap
- 1990 Chevrolet Camaro (RWD) — LS Swap
- 1991 Chevrolet Camaro (RWD) — LS Swap
- 1992 Chevrolet Camaro (RWD) — LS Swap
Pontiac Firebird & Trans Am — 3rd Gen F-Body (RWD) — LS Swap
- 1982 Pontiac Firebird/Trans Am (RWD) — LS Swap
- 1983 Pontiac Firebird/Trans Am (RWD) — LS Swap
- 1984 Pontiac Firebird/Trans Am (RWD) — LS Swap
- 1985 Pontiac Firebird/Trans Am (RWD) — LS Swap
- 1986 Pontiac Firebird/Trans Am (RWD) — LS Swap
- 1987 Pontiac Firebird/Trans Am (RWD) — LS Swap
- 1988 Pontiac Firebird/Trans Am (RWD) — LS Swap
- 1989 Pontiac Firebird/Trans Am (RWD) — LS Swap
- 1990 Pontiac Firebird/Trans Am (RWD) — LS Swap
- 1991 Pontiac Firebird/Trans Am (RWD) — LS Swap
- 1992 Pontiac Firebird/Trans Am (RWD) — LS Swap
Frequently Asked Questions:
Q: Will these headers work with my SBC or BBC engine? No. These headers are designed for LS series engine swaps only and are not compatible with standard small block Chevy or big block Chevy engines.
Q: What is the difference between these headers and the 1993–1997 LT1 longtube headers (25-1019)? Part 25-1035 is for 1982–1992 3rd Gen Camaro and Firebird LS swap conversions. Part 25-1019 is for 1993–1997 4th Gen Camaro and Firebird with the factory Gen 2 LT1 engine — a completely different chassis and engine generation. Make sure to select the correct headers for your vehicle and engine combination.
Q: What is the difference between these headers and the 1998–2002 Camaro/Firebird LS1 headers (25-1020)? Part 25-1035 is for 1982–1992 3rd Gen F-body LS swap conversions. Part 25-1020 is for 1998–2002 4th Gen Camaro and Firebird with the factory LS1 engine.
Q: Will these fit with a 4L80E or older Turbo 350/400 transmission? These headers may require trimming of the bellhousing ears on 4L80E or older Turbo 350/400 transmissions for proper clearance.
Q: What LS engines are these headers compatible with? These headers are compatible with GM LS V8 engines including 4.8L, 5.3L, 6.0L, 6.2L, LS1, LS2, LS3, LS6, and LSA.
Q: What material are these headers made from? 304 natural stainless steel with full TIG-welded construction, CNC-machined flanges, and a merge spike.
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).