260 2 speed to 289 converstion questions

[ThreeLineRifle]

My father and I are discussing my options, what the cost is probably going to be for each choice.

Option One: Stock

This is my preferred option as I know the 260 came out without issue so will go back in. With this option I'm looking at probably 1000 just in machining, 1300ish for a rebuild kit from Kanter.

Option Two: 289

My dad suggests this is a cheaper solution but neither of us know about fitment or which trans to bolt to the back. Would like to leave it as an automatic car so I can drop the 260 and trans back in down the road and use 289 in something else.

[Comechero65]

Depends on what trans you plan to use. If you are keeping the 2 spd auto you need either a 260 with the 5 bolt bh or if you are considering a 289 you would need an early mustang 289 with 5 bolt bh. I don't think there were any 6 bolt bh to fit the 2 spd to a later 289/302/5.0 engines with 6 bolt pattern.
Unless you are hung up on the 2 spd why not consider at least a c4 as an improvement in performance and availablity of rebuilt parts and costs. I have heard rebuild parts for the 2 spd auto or FM2 as it is called are getting more rare.
By replacing the 2 spd you have many more choices in engines.
Ron

[ThreeLineRifle]

The 2 speed will stay with the 260, the 289 is open to any automatic that will fit.

[Tbart]

I like the 260 2sp. Unless you must have a hotrod I'd keep it. They have a unique, very smooth character and already fit. I had this combo in a 62 Fairlane. If you change, the trans mount will give you some grief, and you know about the bell housing issue. There will be other problems I guarantee. Shifter linkage? Depends on what you want. Money and grief wise, I'd keep what you have and give it what it needs.

[comethead]

289 or 302 and C4 trans would work without any major changes.
There's an aftermarket mount for the different bolt pattern on the C4 http://www.falconparts.com/ford-falcon- ... 4p1148.htm
You would need to use the 64-65 Comet C4 shifter and kick down rods.

Joe

[Lip Ripper]

It's good to know about that mount, thanks.

[Tbart]

Three line, those prices for machine and parts sound pretty high. I think you could do much better if you shop around.