Fitment Information

• Mercury Cougar V8 351W Engine Swap (1967, 1968)
• Mercury Cougar V8 351W (1969, 1970, 1971, 1972, 1973)
  
• Will not fit GT-40 P Head
• Standard: 
  • Fits most Z-bars. Vehicles may require Z-Bar modification or new JBA Z-Bar P/N 1650Z for proper fit. 
  • Fits Ford AOD Transmissions.
• Cable Operated Clutch: (with T-5 Manual Transmission)
  

Note 

• Header applications are based on original engine and cylinder head port centerlines unless otherwise noted. Raised port cylinder heads will cause installation issues.

Emissions Information

• This product is legal for use on 1974 and older non-catalyst equipped vehicles and is considered a replacement part per California emissions regulations. It is not intended for use on vehicles equipped with catalytic converters or on any pollution-controlled motor vehicles. Always verify local, state, and federal emissions laws before installation.

Specs & Features

• Linkage Type
  
  • Standard - Raw Stainless (1653S)
  • Standard - Silver Ceramic Coated (1653SJS)
  • Cable Clutch - Raw Stainless (1655S)
  • Cable Clutch - Silver Ceramic Coated (1655SJS)
    
• Mandrel-bent stainless steel primary tubes: Best flow, superior durability, and improved throttle response
• Proprietary JBA Firecone® collector: Race-proven technology for maximum horsepower and torque gains
• Factory-style emission connections: Designed for easier installation
• Extra-thick collector domes: Prevent distortion and reduce risk of leaks
• JBA Badge: Signifies authentic JBA quality
• 3/8″ thick machined flanges: Resists warping, prevents leaks, and ensures easier installation
• Oversized exhaust ports: Increased flow and accommodate cylinder head porting

Product Description

JBA shorty headers are one of the best performance upgrades available for any application. Hot Rod magazine rated headers as one of the top 10 power parts installed on a vehicle. JBA shorty headers are significantly less restrictive than the stock manifolds on a vehicle and dramatically increase the power and efficiency of an engine. JBA's original shorty design is an innovation of the old long tube header.

The new shorty designs yield high performance gains that hot rodders and enthusiasts look for. With durable stainless steel construction that can survive the abuse of racing, towing, and daily driving, these headers can take a beating. With heavy duty features and proprietary technology, like the JBA Firecone collector JBA shorty headers have the capacity to produce more power than any other shorty headers on the market. Each system includes high quality hardware and thorough instructions for a professional no-leak installation.