4l60 auto or turbo 400 for ls1

[sleepinvt]

personally, id work the 4l60E...i have one in my vt and its held quite well considering the amount of abuse its copped....i also have a full reco 4l60e, transgo Hd2 shift kit, aluminium pistons, sunshell and 5 pinion planetery...only running a mildly worked v6 but it still delievers and definitely alot better then the standard box

 

[SirNemesis]

personally, id work the 4l60E...i have one in my vt and its held quite well considering the amount of abuse its copped....i also have a full reco 4l60e, transgo Hd2 shift kit, aluminium pistons, sunshell and 5 pinion planetery...only running a mildly worked v6 but it still delievers and definitely alot better then the standard box

That may be true for you, but a mildly worked V6 isn't going to make as much power or torque as a stock LS1, so thats kinda irrelevant.

 

[AGRSSV8]

If you know from experience, you'd also know that the trans tunnel won't be fine. You need to hammer the top of the tunnel in slightly, and cut a section out of the rail for electrical connector clearance.

didn't touch the top of my tunnel mate, and the rail need such a small notch that if you can light an oxy and use a hammer u will be fine. and FYI the rail isn't the trans tunnel if you wanna get all technical and sh!t

 

[SICK SS]

a craigs bult 4l65/60 will hand arould 630/650 flywheel hp he will even garentee it turbo 400 your up for big dollars budget for around 5g buy the time you build it and get a new tail shaft

 

[Uppercut82]

I dunno I have cammed LS1 vcm13 4l60e 4 K stall 4;11s and I dunno if box since new but car done 235tho and I've had car since 199tho was stock then got it mafless tuned 243rwkw Caine'd it till 230 now added cam n diff etc just under 400rwhp n it's fine,I just service box every 20th keep it clean added transcooler about do heads n bigger injectors should be around 320rwkw and when box goes Il just buy another cheap rebuilt 1 should last couple years atleast