4t65e-hd
- Thread starter Cougar281
- Start date
zzperformance.com
They do some pretty sick 3.8 supercharged stuff, I'd imagine that it would cross over to the V8 stuff as well as for making the transmission hold
They do some pretty sick 3.8 supercharged stuff, I'd imagine that it would cross over to the V8 stuff as well as for making the transmission hold
There are actually two different bellhousings, apparently. Both the Grand Prix GTP with the Supercharged 3800 Series III and the Grand Prix GXP use a 4T65E-HD. The difference is the one for the 5300 has a transmission mounted starter, and the one for the 3800 has an engine mounted starter. The LS4 5.3 was designed to be in a FWD car.
Mike the Impala SS (not the b-body, the current front wheel drive one) has a transversely mounted 5.3...got torque steer?
got torque steer?
My bro has an 08 Impala SS. And it has massive amounts of torque steer
. If you floor it you better have both hands on the wheel.Well, I don't think we're going the LS4 route, instead probably going to go with a supercharged 3800 Series III, but I'd still be interested in fixing the stock transmission; They don't give me a "Warm Fuzzy" as from what I've heard, they seem to fail before 130k OFTEN. How hard is it to rebuild them compared to an Allison?
That's what I was thinking, although some people on the Grand Prix forums claim that it'll hold with the SC'ed motor. Personally, I'm a little nervous about ANY 4T65E, including the -HD, but the -HD is what's under the SC'ed Series III and the much more powerful 5.3L LS4. Any thoughts on a performace build for the 4T65E-HD that'll make it last? Or should I see if the guys at ZZ Performance sell any kits?
i would also try www.intense-racing.com they are the other major 3800 performance supplier and they have 4t65ehd parts:thumb:
on a side note i have a spare 4t65ehd out of a 98 regal gs that i would like to sell. hope this helps.
on a side note i have a spare 4t65ehd out of a 98 regal gs that i would like to sell. hope this helps.