Author Topic: Installing JBA headers in a 65 Coupe  (Read 2145 times)

the Gunny

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  • Mustang: 65 Coupe
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Installing JBA headers in a 65 Coupe
« on: May 10, 2012, 06:17:03 PM »
Hey guys,

I'm new to the forum.  I've got a 65 coupe (302) that I'm attempting to install the complete exhaust system from Mustangs plus.  You know JBA shorty headers all the way back.  Problem is the left header (drivers side) is hitting the steering box.  I'm short at most 1"  probably less.  I have the 66 mounts installed but I'm at a loss as to what to do.   Any suggestions?


The Gunny


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  • Mustang: 1973 Mach 1
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Re: Installing JBA headers in a 65 Coupe
« Reply #1 on: May 10, 2012, 10:05:58 PM »
Have you called JBA or Mustangs Plus?  I would expect them to be in the know on this subject.

To make adequate clearance on the 1st Gen big block camaros, GM offset the engine to eliminate this problem with special mounts.

Some folks dimple a tube to make them work, others will reshape and rebuild headers completely to gain clearance.  There are several adjustable engine mounts out there you could try but. . . if it moves the engine, it is also going to move the transmission which can require shifter relocation, crossmember modification and driveshaft length changes.  anytime you change driveline angle, you have to correct pinion angle.  all in all it can open a can of worms.

I would call them first.

Then I would lift my engine up and install the header and see how room I actually needed. and if denting the tube would be a viable option.



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