Ok, I'm looking at making around 450lb-ft @ the wheels. Might go TH400 in the future- but for now- can't a afford a tow vehicle.

Will a decently built 4L60E hold up to that? I'm running on 10.5" slicks with a nice suspension setup- so the car WILL hook...is this borderline? too much power? or should it be ok...

Also not looking to rebuild it every season...

 

I am on 4 years with the stock trans with no troubles. My best time is 11.4 with a 1.5 60ft on nitrous coming out of the hole sprayin. (On 26/11.5/16 E/T streets)
I know i am over 450lbs of tq to the ground.
I think a "decently built" trans will be good for more than a few seasons (if treated well),lots of clean fluid .
Dave

 

we do a lot of mods and beef up the trans for that give me a call at 203 619 4732 and i tell you about it if interested thanks guy

 

Call FLP at the right -------------->

I love their Level IV 4L60E. Lots of guys making way more power than me using it for tons of street miles and constant track/WOT runs as well.

 

FLP LVL 4 running over 450HP NA and 600HP on the gas after two years and about 20K miles. I think you'll be plenty safe for now.

Rick