What gear for my 307 Cutlass
 

I will be running a 307 olds motor with a 4500 stall and a 28" tire was just curious what you guys would recommend for gears???? Probably be some where around 3400lbs

Re: What gear for my 307 Cutlass
 

First we need to establish a couple things.

Are you going to drive this car on the street?

Is it strictly a race car?

If you plan to drive it, you don't want a killer gear. If I had a similar car to this and planned to strictly drag race it. If it's pretty much a stock engine, you have a healthy converter and a small rear tire. A stock engine is going to peak out at about 55-5600 rpm. For a 1/4, I wouldn't run anything steeper than a 4.30. If it's an 1/8 car, you can go much steeper, you could easily run a 4.88-5.13, you'll still max your rpm out by the end of the run.

Just my.02

Re: What gear for my 307 Cutlass
 

Yes the car also is going to be street driven,i was thinking of 4.30's to 4.56's it is a .60 over 307,big valved 5a heads,9.5.1 compression,and a semi dweller cam.

Re: What gear for my 307 Cutlass
 

4.56 is all ya need.... but will suck on the street!

Re: What gear for my 307 Cutlass
 

If you're going to drive it on the street at all, do yourself a favor and run a 4speed OD trans, (200R4's work great), and you can run a 4:10 or 4:30 gear and still live with it on the street. It will even work well with a 3.73 if the street is more than the track use.