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  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech

Transmision mount?

  • Thread starter Thread starter 65fastbackresto
  • Start date Start date Apr 23, 2007

65fastbackresto

Active Member
Apr 13, 2007
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Apr 23, 2007
#1
  • Apr 23, 2007
  • #1
My 65 fastback currently has a 200 6 cyl and a C-4 tranny. Changing over to a 302 with same tranny, will the same mount work? If not, where can I get one.
 

Rusty67

20+ Year Stangneter
Dec 3, 2002
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LA, CA
Apr 24, 2007
#2
  • Apr 24, 2007
  • #2
I don't think the i6 C4 will bolt to a v8 block.
 

dennis112

15 Year Member
May 15, 2005
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Amish Wonderland of Central PA.
Apr 24, 2007
#3
  • Apr 24, 2007
  • #3
Tranny mounts (both the supporting crossmember and the rubber mount) are all the same in 65/66, no matter what the tranny/motor used.

The transmission will "sort of work" behind the 302. You would need to swap the bellhousing to one from a V8, plus you would need the V8 flexplate and torque converter. This is not really a good conversion because the 6 cylinder tranny is not built internally strong enough for a V8 and could quickly have you walking home.

Unless your car was originally a V8, you will also have other issues, such as the rear end, suspension, and brakes are inadequate for V8 torque and HP. Do some searches on converting I6 to V8.
 

65fastbackresto

Active Member
Apr 13, 2007
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Apr 24, 2007
#4
  • Apr 24, 2007
  • #4
Dennis 112

At one time someone has converted almost everything over to V-8 components. Its a factory 6, but it now has 5 lug wheels, bigger fuel line, and steering components have been changed.

I am changing the leaf springs, coil springs, and putting disk brakes in the front.

I suspect the tranny in it may have been the one behind the V-8 that was in it at one time, but I dont know how to tell the difference between a 6 cyl tranny and a V-8 tranny. If the casing are the same, my tranny guy can put V-8 stuff in it, its getting rebuilt anyway.

The rear end is a 8 inch, if I scatter it I`ll get another one.
 

dennis112

15 Year Member
May 15, 2005
1,561
36
79
Amish Wonderland of Central PA.
Apr 24, 2007
#5
  • Apr 24, 2007
  • #5
65fastbackresto said:
At one time someone has converted almost everything over to V-8 components. Its a factory 6, but it now has 5 lug wheels, bigger fuel line, and steering components have been changed.

I am changing the leaf springs, coil springs, and putting disk brakes in the front.

I suspect the tranny in it may have been the one behind the V-8 that was in it at one time, but I dont know how to tell the difference between a 6 cyl tranny and a V-8 tranny. If the casing are the same, my tranny guy can put V-8 stuff in it, its getting rebuilt anyway.

The rear end is a 8 inch, if I scatter it I`ll get another one.
Click to expand...

No problem 65FB--it sounds like you are going to do it right.

So many people on the forums think that all they to do to convert an I6 to a V8 is change the motor and tranny. You have done your homework and are well on your way to understanding what is involved. Good for you!

Good luck with your fastback-it will be sweet when you are done.
 

65fastbackresto

Active Member
Apr 13, 2007
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Apr 24, 2007
#6
  • Apr 24, 2007
  • #6
Thanks Dennis

Me and a buddy also installed subframe connectors last week, if I can get my dang digital camara to download my pics I`ll post some. Thanks for the praise, but I dont deserve it....yet anyway LOL
 
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