Dropping an LS into your C10? Speed Engineering's 1-3/4" LS swap longtube headers are built specifically for the classic C10 platform — mandrel bent, TIG-welded, and CNC-machined for a precise, port-matched fit across the full 1960–1987 C10 run. One of the standout features of this header is the ground clearance design — the headers do not hang below the frame, making them a great choice for lowered builds and air ride applications. Tested and confirmed to work on factory chassis as well as Choppin Block, Roadster Shop (with Pro spindles), Porterbuilt, and other aftermarket front drop members with air ride and coilover suspension. Compatible with the full LS engine family from 4.8L through 6.2L including LS1, LS2, LS3, LS6, and LSA. Dyno proven.
Built from 304 natural stainless steel with a merge spike and standard graphite manifold gaskets included.
⚠️ Important Installation Notes:
- 1960–1966 C10 applications require slider engine mounts to clear the front crossmember
- 2WD applications only — will NOT fit 4WD C10 trucks
- LS swap applications only — these headers are NOT compatible with standard SBC or BBC engines
- Due to older vehicle frame clearance, headers fit very tight and require Speed Engineering spark plug wires
- 4L80E or older Turbo 350/400 transmission — bellhousing ears may need to be trimmed for proper clearance
Features:
- 1-3/4" Primary Tubes with Merge Spike — 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
- Headers Do Not Hang Below the Frame — Engineered for excellent ground clearance on air ride and lowered applications
- Works on Factory Chassis and Most Aftermarket Chassis — Tested on Choppin Block, Roadster Shop (with Pro spindles), Porterbuilt, and other front drop members
- 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. 2WD applications only — will NOT fit 4WD trucks. 1960–1966 applications require slider engine mounts to clear the front crossmember.
Chevrolet C10 Truck (2WD) — LS Swap
- 1960 Chevrolet C10 Truck (RWD) — LS Swap ⚠️ Requires slider engine mounts
- 1961 Chevrolet C10 Truck (RWD) — LS Swap ⚠️ Requires slider engine mounts
- 1962 Chevrolet C10 Truck (RWD) — LS Swap ⚠️ Requires slider engine mounts
- 1963 Chevrolet C10 Truck (RWD) — LS Swap ⚠️ Requires slider engine mounts
- 1964 Chevrolet C10 Truck (RWD) — LS Swap ⚠️ Requires slider engine mounts
- 1965 Chevrolet C10 Truck (RWD) — LS Swap ⚠️ Requires slider engine mounts
- 1966 Chevrolet C10 Truck (RWD) — LS Swap ⚠️ Requires slider engine mounts
- 1967 Chevrolet C10 Truck (RWD) — LS Swap
- 1968 Chevrolet C10 Truck (RWD) — LS Swap
- 1969 Chevrolet C10 Truck (RWD) — LS Swap
- 1970 Chevrolet C10 Truck (RWD) — LS Swap
- 1971 Chevrolet C10 Truck (RWD) — LS Swap
- 1972 Chevrolet C10 Truck (RWD) — LS Swap
- 1973 Chevrolet C10 Truck (RWD) — LS Swap
- 1974 Chevrolet C10 Truck (RWD) — LS Swap
- 1975 Chevrolet C10 Truck (RWD) — LS Swap
- 1976 Chevrolet C10 Truck (RWD) — LS Swap
- 1977 Chevrolet C10 Truck (RWD) — LS Swap
- 1978 Chevrolet C10 Truck (RWD) — LS Swap
- 1979 Chevrolet C10 Truck (RWD) — LS Swap
- 1980 Chevrolet C10 Truck (RWD) — LS Swap
- 1981 Chevrolet C10 Truck (RWD) — LS Swap
- 1982 Chevrolet C10 Truck (RWD) — LS Swap
- 1983 Chevrolet C10 Truck (RWD) — LS Swap
- 1984 Chevrolet C10 Truck (RWD) — LS Swap
- 1985 Chevrolet C10 Truck (RWD) — LS Swap
- 1986 Chevrolet C10 Truck (RWD) — LS Swap
- 1987 Chevrolet C10 Truck (RWD) — LS Swap
Frequently Asked Questions:
Q: Do 1960–1966 C10s require any special motor mounts? Yes. 1960–1966 C10 applications require slider engine mounts to clear the front crossmember for proper header fitment.
Q: Will these headers fit my 4WD C10? No. These headers are designed for 2WD C10 applications only and will not fit 4WD trucks.
Q: Are these headers good for lowered or air ride C10 builds? Yes. These headers are specifically engineered so that they do not hang below the frame, making them an excellent choice for lowered builds and air ride applications. They have been tested on Choppin Block, Roadster Shop (with Pro spindles), Porterbuilt, and other aftermarket front drop members with air ride and coilover suspension.
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: Do I need special spark plug wires? Yes. Due to tight frame clearance on older C10 platforms, Speed Engineering spark plug wires are required for proper fitment with these headers.
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 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).
