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T5 Recommendation for a 65 mustang 200

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Royals65i6
Registered User
Posts: 37
Joined: Sun Oct 15, 2017 10:10 pm

T5 Recommendation for a 65 mustang 200

Post #1 by Royals65i6 » Wed Sep 18, 2019 6:21 pm

I know there are many discussions already about the T5 swap. I just have one specific question. I have a guy who will build to order any T5. I also know that gear ratios differ from year to year. Is there a specific year that works best with a 1965 200, 2.77, 8.5" clutch. I have done moderate improvements including:
-dual exhaust with new header
-1980 cylinder head swap with enlarged valves and 302 springs
-direct mount 2 barrel Autolite 2100
-HEI distributor

This is a street car for me to both enjoy driving wherever I want, and as fast as I want. I am leaning toward the 1990-91 Mustang 5.0 T5. Anyone have an argument for or against that one, or a better suggestion? I'm probably over thinking this, but I figured that I would ask anyways.

Thanks in advance for the help.

bmbm40
Registered User
Posts: 1225
Joined: Tue Feb 22, 2005 6:25 pm
Location: Carson City, NV

Re: T5 Recommendation for a 65 mustang 200

Post #2 by bmbm40 » Fri Sep 20, 2019 7:47 pm

viewtopic.php?f=76&t=80170
This member went with the v8 t5 but don't know if that will help you.
I like your 65 Mustang and you have some good mods so far. That is pretty much what I would want in a 65 Mustang which I hope to get someday.
66 Bronco-1970 250, NV3550, DSII, 4 turn ps, uncut, 1" bl, 2.5" sl, front disc, twin stick D 20, 30 x 9.50
NEXT- direct mount 1.08 on D8 head, power brakes, rear limited slip, 3G, electric fan, electric upgrades, custom curved DSII, header, 31" tires

New guy? Get the Falcon Performance Handbook and Ford six high performance parts from https://vintageinlines.com

Dragonlich1961
Registered User
Posts: 121
Joined: Tue Feb 23, 2016 4:48 pm

Re: T5 Recommendation for a 65 mustang 200

Post #3 by Dragonlich1961 » Thu Oct 03, 2019 10:42 pm

when deciding on which t5 to use you need to look at the entire drivetrain, mainly rear axle ratio. i ellected to use a 94 v8 t5 and a ford 8.8 spining 3.73. with the 26 inch tall 215/70/14 tire, i get 2200 at 70mph. this is due to a .68 overdrive ratio.
What rear ratio is in your rear axle, i beilve most were shipped with a 3.20 ish gear, so a 4 cyl might be a better fit. though they require a special pilot bearing. (smaller input shaft tip DIA).
What are your goals for the car.

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