JBA Performance Exhaust

Technical Information :: 6611S Long Tube Headers

JBA Equipped - Greg Raymond's ‘65 Mustang Coupe.
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JBA p/n 6611S headers are designed to fit ‘64-1/2 - ‘70 289/302 (not Boss) Mustangs equipped with late-model T-5 5 speed transmissions.

These headers provide significant increases in torque and horsepower throughout the RPM range and allow for maximum ground clearance.

To help make sure you choose the correct headers, h-pipe and exhaust for your Mustang please refer to the chart below. If you still have questions, give us a call.

Note: These headers will work with a stock mechanical clutch using the factory Z-bar. If Z-bar is modified or worn use JBA p/n 1650Z.

*actual product may differ from product shown

:: P/N 6611S Fitment Guide ::
Specifications: 1-3/4" stainless steel primary tubes, 3" Firecone® merge collector, 3/8 " laser-cut flanges
Engine	Cylinder Head	Trans. cross member	Block	Clutch	Trans.
289/302	289/302/5.0 "Windsor" Stock Port location	Use JBA x-member p/n 1751 for 65-66 p/n 1752 for 67-70	Stock. - OK	Mechanical, Cable or Hydraulic	T-5 5 speed
Motor Mounts	Bell Housing	Starter	Suspension	Steering	H-pipe
Stock or Total Control	Stock or scatter shield. Scatter shield may require clearance.	Stock or mini starter	Reproduction upper A-arm mounting studs may need to be shortened.	Manual - OK Rack & Pinion - OK Does not fit factory power steering.	Use JBA p/n 6609H