Dropping a GM LS engine into your first gen Camaro or classic Nova? Speed Engineering's 1-7/8" LS swap longtube headers are built specifically for these platforms — mandrel bent, TIG-welded, and CNC-machined for a precise, port-matched fit on both the 1967–1969 Camaro and 1968–1974 Nova. Compatible with the full LS engine family from 4.8L through 6.2L including LS1, LS2, LS3, LS6, and LSA. Dyno proven to deliver over 25 rear-wheel horsepower over stock manifolds.
Built from 304 natural stainless steel with standard graphite manifold gaskets included.
⚠️ Important Installation Notes:
- LS swap applications only — these headers are NOT compatible with 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" Port-Matched Primary Tubes — Full-diameter flow from cylinder head to collector for maximum exhaust scavenging
- 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 — 25+ RWHP gain on LS applications
- 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 (RWD) — LS Swap
- 1967 Chevrolet Camaro (RWD) — LS Swap
- 1968 Chevrolet Camaro (RWD) — LS Swap
- 1969 Chevrolet Camaro (RWD) — LS Swap
Chevrolet Nova (RWD) — LS Swap
- 1968 Chevrolet Nova (RWD) — LS Swap
- 1969 Chevrolet Nova (RWD) — LS Swap
- 1970 Chevrolet Nova (RWD) — LS Swap
- 1971 Chevrolet Nova (RWD) — LS Swap
- 1972 Chevrolet Nova (RWD) — LS Swap
- 1973 Chevrolet Nova (RWD) — LS Swap
- 1974 Chevrolet Nova (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 LT swap version for the same vehicles? The key difference is the engine family. Part 25-1027 is designed for GM LS series engine swaps including LS1, LS2, LS3, LS6, and LSA. Part 25-1156 is designed for Gen V LT direct injection engine swaps including LT1 and LT4. Make sure you select the correct headers for your specific engine swap.
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: How much horsepower do these headers add? Speed Engineering's 1-7/8" LS swap longtube headers are dyno proven to add over 25 rear-wheel horsepower compared to stock exhaust manifolds on LS applications.
Q: What material are these headers made from? 304 natural stainless steel with full TIG-welded construction and CNC-machined port-matched 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).
