Upgrading the exhaust on your classic Ford or Mercury? Speed Engineering's SBF shorty headers are a direct-fit upgrade for 1964–1977 Mustang, Maverick, Fairlane, Falcon, and Mercury Cougar applications — mandrel bent, TIG-welded, and CNC-machined with rectangular ports and a 3" collector with merge spike. Built from 304 natural stainless steel with zinc header bolts and standard graphite manifold gaskets included.
Features:
- Full 1-5/8" Primary Tubes with Merge Spikes — Sized for improved flow on SBF 289, 302, and 351 applications
- 1-5/8" x 1-1/4" Rectangular Ports — Matches standard SBF rectangular port cylinder head configurations
- 3" Collector with Merge Spike — Optimized merge geometry for strong low-to-mid RPM torque
- Shorty Header Design — Improved flow over stock manifolds with a compact, fitment-friendly profile
- 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
- 15-1/8" Center to Center Outer Bolt Holes — Standard SBF bolt spacing for direct fitment verification
- 304 Natural Stainless Steel Construction — Corrosion resistant, heat tolerant, and built to last
- Standard Graphite Manifold Gaskets Included
- 3/8"-16x1" Zinc Header Bolts Included
- Compatible with SBF 4.7L/289, 5.0L/302, and 5.8L/351 V8 Engines
- V8 Engines Only
Vehicle Applications:
Ford Mustang
- 1964 Ford Mustang — SBF 4.7L/5.0L/5.8L
- 1965 Ford Mustang — SBF 4.7L/5.0L/5.8L
- 1966 Ford Mustang — SBF 4.7L/5.0L/5.8L
- 1967 Ford Mustang — SBF 4.7L/5.0L/5.8L
- 1968 Ford Mustang — SBF 4.7L/5.0L/5.8L
- 1969 Ford Mustang — SBF 4.7L/5.0L/5.8L
- 1970 Ford Mustang — SBF 4.7L/5.0L/5.8L
- 1971 Ford Mustang — SBF 4.7L/5.0L/5.8L
- 1972 Ford Mustang — SBF 4.7L/5.0L/5.8L
- 1973 Ford Mustang — SBF 4.7L/5.0L/5.8L
- 1974 Ford Mustang — SBF 4.7L/5.0L/5.8L
- 1975 Ford Mustang — SBF 4.7L/5.0L/5.8L
- 1976 Ford Mustang — SBF 4.7L/5.0L/5.8L
- 1977 Ford Mustang — SBF 4.7L/5.0L/5.8L
Ford Maverick
- 1971 Ford Maverick — SBF 4.7L/5.0L/5.8L
- 1972 Ford Maverick — SBF 4.7L/5.0L/5.8L
- 1973 Ford Maverick — SBF 4.7L/5.0L/5.8L
- 1974 Ford Maverick — SBF 4.7L/5.0L/5.8L
- 1975 Ford Maverick — SBF 4.7L/5.0L/5.8L
- 1976 Ford Maverick — SBF 4.7L/5.0L/5.8L
- 1977 Ford Maverick — SBF 4.7L/5.0L/5.8L
Ford Fairlane
- 1966 Ford Fairlane — SBF 4.7L/5.0L/5.8L
- 1967 Ford Fairlane — SBF 4.7L/5.0L/5.8L
- 1968 Ford Fairlane — SBF 4.7L/5.0L/5.8L
- 1969 Ford Fairlane — SBF 4.7L/5.0L/5.8L
- 1970 Ford Fairlane — SBF 4.7L/5.0L/5.8L
Ford Falcon
- 1962 Ford Falcon — SBF 4.7L/5.0L/5.8L
- 1963 Ford Falcon — SBF 4.7L/5.0L/5.8L
- 1964 Ford Falcon — SBF 4.7L/5.0L/5.8L
- 1965 Ford Falcon — SBF 4.7L/5.0L/5.8L
- 1966 Ford Falcon — SBF 4.7L/5.0L/5.8L
- 1967 Ford Falcon — SBF 4.7L/5.0L/5.8L
- 1968 Ford Falcon — SBF 4.7L/5.0L/5.8L
- 1969 Ford Falcon — SBF 4.7L/5.0L/5.8L
- 1970 Ford Falcon — SBF 4.7L/5.0L/5.8L
Mercury Cougar
- 1967 Mercury Cougar — SBF 4.7L/5.0L/5.8L
- 1968 Mercury Cougar — SBF 4.7L/5.0L/5.8L
- 1969 Mercury Cougar — SBF 4.7L/5.0L/5.8L
- 1970 Mercury Cougar — SBF 4.7L/5.0L/5.8L
FAQ
What port shape do these headers use?
These headers use 1-5/8" x 1-1/4" rectangular ports, compatible with standard SBF rectangular port cylinder head configurations.
What is the collector size on these headers?
These headers feature a 3" collector with merge spike.
What is the bolt hole spacing on these headers?
The outer bolt holes are 15-1/8" center to center, matching standard SBF head bolt spacing.
What bolts are included?
3/8"-16x1" zinc header bolts are included with the headers.
What engines are these headers compatible with?
These headers are compatible with Ford small block V8 engines including 4.7L/289, 5.0L/302, and 5.8L/351.
What is the difference between these headers and the universal SBF block hugger headers (25-1234)?
Part 25-1240 is a direct-fit shorty header designed for 1964–1977 Mustang, Maverick, Fairlane, Falcon, and Mercury Cougar with rectangular ports and a 3" collector. Part 25-1234 is a universal block hugger design with oval ports and a 2.5" collector suited for a wider range of SBF chassis applications. Choose based on your specific vehicle and fitment requirements.
What material are these headers made from?
304 natural stainless steel with full TIG-welded construction, CNC-machined flanges, and merge spikes.
Are gaskets included?
Yes. Standard graphite manifold gaskets are included with the headers.
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).
