14x7's and 67 coupe -- best tire size?

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boatillo

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Jun 10, 2006

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Jun 10, 2006

#1

• Jun 10, 2006

• #1

I have a set of 14x7, 4.25" backspacing original Magnum 500's that I am planning to use on my '67 coupe (all suspension is original) once it gets back from paint! They have to be BFG Radial T/A's (RWL) for the right look They make the Radial T/A's in:

205, 215, 225, 235, 245 / 60 / 14

195, 205, 215, 225 / 70 / 14

I do not want to roll the fenders, or change any of the suspension components just to make larger tires fit - I will be happy with whatever doesn't rub and will fill the well nicely. I realize the front end is more limited because of the a arm, and would be ok with running a slimmer size in front and a tad wider in back or all 4 the same.

Anyone run something like this? Pictures?

 

Cobain03

Active Member

Aug 27, 2003

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Lexington, Ky

Jun 10, 2006

#2

• Jun 10, 2006

• #2

i run the orginal magnum 500's on my 65. although our body is different i run 225/70s all the way around. enough meat to firmly plant you dont but nothing overkill.

my rims arent as nice as yours may be but they are orginal.

 

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boatillo

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Jun 10, 2006

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Jun 10, 2006

#3

• Jun 10, 2006

• #3

Those 70 series look pretty good, and 225's are a fine width (although 245's in the back would be fun...I would rather achieve proper fit than deal with occasional rubbing).

Anyone else have advice?

 

dbfarr

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Sep 17, 2005

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Boise ID

Jun 10, 2006

#4

• Jun 10, 2006

• #4

245's fit

I have old series cragars 14x7 and 245/60/14's fit w/ no rubbing on a 68 cougar. 225/70/14 and 245/60/14 are close in overall height

Anyway, here is a overall diameter calculator I made in Excel a while back.

Delete the .txt extension to open.

 

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B

boatillo

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Jun 10, 2006

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Jun 11, 2006

#5

• Jun 11, 2006

• #5

Anyone else have firm advice, pictures?

 

Jester67

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Sep 21, 2004

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TN

Jun 12, 2006

#6

• Jun 12, 2006

• #6

I had 245/60/14 on mine with no problem on the old stock suspension

 

Pbum5

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Oct 27, 2004

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Minneapolis, MN

Jun 12, 2006

#7

• Jun 12, 2006

• #7

I have Cragar 14x7 wheels
with BFG Radial TA’s
215/60 in the front and 265/50 in the back.
They did rub but I went with a narrower 1959, 9" inch rear it took care of that. Now when I upgrade to a bigger wheel can run a larger tire with the right backspacing

I would say 245/60 would be a good choice for your rears. 215 or 225 up front.

 

yeloxr7

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Apr 18, 2005

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Jun 12, 2006

#8

• Jun 12, 2006

• #8

14x7 magnums with 4.25 backspace hit the upper a-arm bulge over the ball joint on my 69 Cougar. 14x6 have 3.5 backspace and cleared everything.

I used 225-70R14 Goodyear Eagle ST tires on these rims and they looked and worked great.

 

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THX 138

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Oct 7, 2004

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Los Angeles

Jun 12, 2006

#9

• Jun 12, 2006

• #9

I just got some 225-60-14s cooper cobras and like them a lot :SNSign:

 

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boatillo

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Jun 10, 2006

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Jun 12, 2006

#10

• Jun 12, 2006

• #10

Great info, thanks all!

Think I will order 215/60/14 fronts and 235/60/14 rears (just to be on the safe side!)

 

jes72mustang

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Mar 31, 2005

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S. Central PA

Jun 13, 2006

#11

• Jun 13, 2006

• #11

I am also running 225/70 firestones on my 72. I was looking for overall diameter to be close to what the original f-70/14s would have been.

 

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palerider94

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Feb 21, 2006

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Jun 13, 2006

#12

• Jun 13, 2006

• #12

Good Article on Tire Sizes

He re is a good writeup on tires and rim sizes for classic mustangs.

http://mustangmonthly.com/techarticles/mump_0507_wheels/