| Technical
Information :: 6656S Tri-Y Headers |
Steve Thompson's JBA Equipped '67 Mustang GTA 390
Click
to Enlarge |
JBA
p/n
6656S headers are designed to fit the 67-70 390 GT
Mustang equipped with a 390 GT 14 bolt cylinder head
and factory 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 : : Some 69-70 Mustangs with
fatigued factory shock towers and reinforcment plates
may require clearancing. |
|
|
| ::
P/N 6656S Fitment Guide :: |
| Specifications:
Stainless steel 1-3/4" primary, 2-1/4" secondary, 3"
dome collector, 3/8" laser-cut flanges |
| Engine |
Cylinder
Head |
Block |
Trans. |
Trans
X-member |
Clutch |
| 390
GT |
390
GT
14 bolt |
Stock |
4
spd/C6/Auto
(will not work
with T-5) |
Stock |
Mechanical
or Hydraulic
|
| Motor
Mounts |
Bell
Housing |
Starter
|
Suspension |
Steering
|
H-pipe
|
| Stock
or Total Control |
Stock
or
Scatter Shield |
Stock
or
mini starter |
Reproduction
upper A-arm
mounting studs may need to be clearanced. |
Rack & Pinion
- OK
Manual - OK
Factory P/S use 6656P bracket
|
Use
JBA p/n
6655H |
|
| |
