390

[Hottrodder427]

Can you turn a390 into a428 with min work

[2FAST4U]

http://www.fordmuscleforums.com/all-ford-techboard/493621-428-crank-390-a.html

[2FAST4U]

Here is some important info regarding theFE engines. This will help ensure you get the right block

http://www.mre-books.com/interchange/interchange11.html

[Hottrodder427]

Ford is so complicated I think ill keeper a 390 do y'all think its a good engine for mk4

[2FAST4U]

Yes, 390 will be good. Add some 427 chrome pent roof valve covers and you'll fool most people

[Hottrodder427]

Nice!!!!

[Hottrodder427]

Now do you think 6 speed or 5 speed. And what gear should I use. With the big block?

[2FAST4U]

Now do you think 6 speed or 5 speed. And what gear should I use. With the big block?

Transmission and rear gear choice depends on many factors such as intended use of the car, engine redline, engine performance characteristics, and rear end type. If you plan to use a solid axle rear, you can not use a 6-spd transmission because the driveshaft is too short and will bind. Answer these questions and we can give you a better answer

[Hottrodder427]

5 speed it is. I was going to auto x and some track days and just crusi. Around

[2FAST4U]

A T5 with its 2.94 1st gear is a good choice. Add some 3.55 or 3.77 gears and you're good to go

[Hottrodder427]

Can I use a Borg Warner T5 with the 390 I have one that's why I'm asking

[2FAST4U]

http://en.wikipedia.org/wiki/Borg-Warner_T-5_transmission

From the link I would say yes

[CraigS]

A T-5 w/ a 390 sounds real marginal to me. I would sell it and upgrade to a TKO500 at least. Call Mike Forte and get his opinion. He will steer you right and not sell you something you don't need.

[Hottrodder427]

After my research I agree it's to much torque I just had it in the shed

[Hottrodder427]

Is the mustang cobra IRS the same parts as the T birds

[LesMurray]

'03 Mustang Cobra IRS is different than the T-Bird.

To use a Cobra IRS, you'll need to have the hubs pressed onto T-Bird knuckles and have the drive shafts shortened. You may also need to modify the brake caliper brackets. That is what my research tells me.

[Hottrodder427]

It's okay I scored a '94 cougar v-8 hub to hub to driveshaft for 500.00. Is it wise to resource parts now before I get the kit