Getting ready

[Mark IV]

My take:

• The six speed is wasted in most applications, the T56 has two overdrives ratios and unless you are cruising at high speeds you will be too low in the RPM range on most engines
  
  The TKO600 with the .65 OD is also geared rather high for most uses. Search here and you will find some threads on people who regret the .65 and are looking to change to the .82
  
  Remember that ultra high HP may make for great bragging rights, but unless you can put the to the ground, it is wasted. Anything over 550 is probably not usable on most cars in my opinion, your results may vary.

[Silverback51]

Originally Posted by Mark IV

My take:

• The six speed is wasted in most applications, the T56 has two overdrives ratios and unless you are cruising at high speeds you will be too low in the RPM range on most engines
  
  The TKO600 with the .65 OD is also geared rather high for most uses. Search here and you will find some threads on people who regret the .65 and are looking to change to the .82
  
  Remember that ultra high HP may make for great bragging rights, but unless you can put the to the ground, it is wasted. Anything over 550 is probably not usable on most cars in my opinion, your results may vary.

I agree. The .65 OD is a waste at anything below 70 MPH, and I have 3.73 gears in the rear.

[D-CEL]

Im almost 6’3” and 285 and no problem fitting. The bigger problem for me is the size 13 shoe. Narrow driving shoe makes it a lot easier to work the pedals.
On the HP issue: Big or small, if it makes an honest 500+ hp it will be a fast car and plenty for your first stint in a Cobra. Note: Tires are critical! Run as big and sticky as you can fit with whatever wheel you choose.
Small blocks are 100+ lbs lighter and are easier to work around because of their size.
Big blocks can make that amount of power a little cheaper and with a longer useable torque band.

Durability is a wash give the same build quality.
Gears: Really depends on the set-up. Motor, tire, desired usage. A .65 5th and 3.73 seems to be common and acceptable to most. I like a little more RPM in high gear so I run 4.10s

Resale: Who cares! Buy Build it for you today.


Jason