What Type Of Differential

[deerhunter1947]

i'am having a new motor build for my 1993 triple white conv. what would be the best style of rear end? the motor will be making about 550 hp. what gear ratio would be best? the car will be just a street machine.

 

[srtthis]

Details on the motor???? Is it high strung? More of a stump puller? High way cruiser or around town?

 

[Bullitt347]

More questions to answer..............automatic trans or stick, gonna run a drag radial on the street or???

 

[ratio411]

What engine are you getting 550hp out of?

 

[deerhunter1947]

the engine is a 347 stroker,with a supercharger. it has a manual t5 transmission. i have drag radials on it.

 

[NIKwoaC]

You haven't really given us a lot of info, but here you go- A car with 3300 lb race weight will go about 125 mph in the 1/4 if it is making 500 horsepower. To go 125 on a 26" tire at 6000 rpm in 4th gear, you'd need a 3.73 rear end gear. With 3.55s you'd trap at about 5700.

http://www.hotrodpitstop.com/tool.php

 

[Rick 91GT]

Id put a 3:73 or a 3:90 in the car depending on tire height. Id suggest a 31 spline setup with a Eaton posi