Originally Posted by Mzilla
I have the 4r75w in my 04 and I upgraded to a precision industries 3200 stall, custom valve body, and we removed the wave plates and added an additional three clutch discs. The trans is good for roughly 850-900 rear wheel torque. The 4r70w stock is good to 700ftlbs of torque. The 4r70w is also good to the about 500rwhp level. I would recommend after that a j mod and adjusting the line pressures. The biggest thing is a stall and a deep sump pan to hold additional fluid for cooling that stall. Also an external trans cooler is a must on a dd car
I planned on the Jmod, tranny cooler and a 3000 stall but it does make sense for the deep sump pan.
Also on another note I'm looking at MMRs 600hp Longblock and should I get the trickflow heads or just get stage 2 head port job??? I plan in getting there stage 2 cams in with high lift springs and valve retainers as well as the arp head studs