JBA 65-86 GM Truck 265-400 Carbureted w/A.I.R. 1-5/8in Primary Raw 409SS Cat4Ward Header

JBA shorty headers are one of the foremost performance upgrades you can bestow upon your beloved car, truck, or SUV. JBA Headers are significantly less restrictive than stock manifolds and dramatically increase the power and efficiency of your engine. Each header is constructed from durable stainless steel to endure the abuse of racing, towing, and daily driving – built to withstand it all. JBA’s proprietary Firecone collector design uses race proven technology for producing maximum power and torque gains where you drive most. Each system includes factory style emission connections and high-quality hardware for a professional no-leak installation.

JBA Cat4Ward® Header 65-91 GM Truck 5.0/5.7L, 265-400 SBC, Carbureted W/O A.I.R. Injection 1 5/8" Primary Raw 409 1830S-6

JBA 65-86 GM Truck 265-400 Carbureted w/A.I.R. 1-5/8in Primary Raw 409SS Cat4Ward Header

3/8" thick machined flanges with Oversized exhaust ports

65-91 GM Truck Cat4Ward® 5.0/5.7L, 265-400 Raw 409

Proprietary JBA Firecone collector

Factory style emission connections

Mandrel bent stainless steel tube

Extra thick collector domes

JBA Exhaust Header

Exhaust Header