I'm mainly looking for the easiest way to go about it. Are there any transmissions that bolt right up to the 250 and require minimal changes to anything else?depends on what cost/effort you are ok with
going to a muncie M20 is an option, but getting low enough 1st, and not too high rpm at cruise, is always an issue with low torque, low rpm motor
or going to a 5 speed is more work but solves the above issues
I have a 250 with around 250 ft-lbs hooked to a muncie, with 3.08 rear, I would not want higher gearing in first but then I'm at 3000 at 70mph
3000 doesn't seem high but for a 5500 red line its up there
the 250 and muncie is great on roads where I'm top speed of 50 to 55 range
some day I'll probably go to TKX
I do have a TKX for the car I'm putting a 5.3 in, with a 3.50 rear
with the TKX I'm quite a bit lower in 1st than the muncie and still should be around 2200 at 70 in 5th
1971What yr are your talking about? Anyway I went from a PG to a 3 speed saginaw then a 4speed Saginaw Then to my Muncie, Now I am on a look out for a T10 with a 2.88 first gear anything lower in my case I'll Brake it. But they do have one with a 3.11 first gear.
But you will need to find the Right Z Bar for your App. and the clutch & brake pedal assembly. Bell housing and clutch fork and the adjustment rod.