Dropping a modern 5.0L Coyote into your classic 1965–1972 Ford Mustang? Speed Engineering's Coyote swap longtube headers are built specifically for this application — mandrel bent, TIG-welded, and CNC-machined for a precise fit on the most popular classic Mustang Coyote swap builds. Compatible with Mustang II style front suspension setups including TCI, Heidt's, and similar applications. Dyno proven to deliver over 25 rear-wheel horsepower over stock manifolds.
Built from 304 natural stainless steel with merge spikes and standard graphite manifold gaskets included.
⚠️ Important Installation Note — Header Bolt Thread Pitch:
- Early Gen 1 (2011) and some Gen 3 (2018+) Coyote engines use M10x1.25 header bolts
- Late Gen 1 (2011) and Gen 2 (2015–2017) Coyote engines use M10x1.5 header bolts
Verify your thread pitch before installation.
Features:
- Full 1-3/4" Primary Tubes with Merge Spikes — 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
- Compatible with Mustang II Style Front Suspension — TCI, Heidt's, and similar applications
- Standard Graphite Manifold Gaskets Included
- Dyno Proven — 25+ RWHP gain on 5.0L Coyote applications
- V8 Coyote Engines Only
Vehicle Applications:
Note: All applications listed are 5.0L Coyote V8 swap conversions.
Ford Mustang — Coyote Swap (RWD)
- 1965 Ford Mustang (RWD) — 5.0L Coyote Swap
- 1966 Ford Mustang (RWD) — 5.0L Coyote Swap
- 1967 Ford Mustang (RWD) — 5.0L Coyote Swap
- 1968 Ford Mustang (RWD) — 5.0L Coyote Swap
- 1969 Ford Mustang (RWD) — 5.0L Coyote Swap
- 1970 Ford Mustang (RWD) — 5.0L Coyote Swap
- 1971 Ford Mustang (RWD) — 5.0L Coyote Swap
- 1972 Ford Mustang (RWD) — 5.0L Coyote Swap
Frequently Asked Questions:
Q: Will these headers work with my Mustang II style front suspension? Yes. These headers are compatible with Mustang II style front suspension setups including TCI, Heidt's, and similar applications.
Q: What header bolt size do I need for my Coyote swap? It depends on your Coyote generation. Early Gen 1 (2011) and some Gen 3 (2018+) engines use M10x1.25 bolts. Late Gen 1 (2011) and Gen 2 (2015–2017) engines use M10x1.5 bolts. Verify your thread pitch before installation.
Q: How much horsepower do these headers add? Speed Engineering's 1-3/4" Coyote swap longtube headers are dyno proven to add over 25 rear-wheel horsepower compared to stock exhaust manifolds on 5.0L Coyote applications.
Q: What engines are these headers compatible with? These headers are compatible with Ford 5.0L Coyote V8 engines only.
Q: What material are these headers made from? 304 natural stainless steel with full TIG-welded construction, CNC-machined flanges, and merge spikes.
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).