stall speedDecember 28 2011 at 7:48 PM
|DAVID (no login)|
from IP address 22.214.171.124
Response to Re: How much torque/h.p. does cruise o matic handle?
Hard to say, I guess it depends on what the car will be used for most of the time (street only, street/strip, strip only).
I don't know exactly how much stall converter a 390 would "like" on the street because I never messed with the big block FE stuff. What I can tell you is in a street/strip '70 Ranchero I had many years ago with a 351-C/FMX combo I used a 3500 stall converter. The 3500 stall was a pretty good fit in that situation because the 351-C stuff likes the higher RPM range.
If you're looking for more stoplight to stoplight "pep" an less worried about mileage or highway driving then adding a little more rear gear ratio and/or a little more converter stall, is something worth looking at. The big block FE stuff on the street would probably respond nicely to around 500-1000 more stall than what a tight factory converter has. But going up to say a 3500 stall might a bit too much for street driving with the FE since the FE has the benefit of add torque to work with, something the 351-C has less of.