Most known HP through a J30/H41/H55

[cult45]

Searched for the right section to put this in, figured this was it. Apologies if it's not.

As the title suggests, what's the most known horsepower through a Landcruiser gearbox?

 

[White Stripe]

Downey might know. Try the FJ60 section, some v8 guys might
Know.

 

[Tigerstripe40]

My bet is that it depends on your application of the pedal on the right.

 

[sadam_husain]

dunno about the J30 but there's been plenty of LS and big block engines run through H41/H55 gearboxes, the early 1 piece transfer cases were the only weak point the split transfer cases seem to cope ok, my H55 is pretty worn and jumps out of reverse and 2nd and has coped with my 6.0 LS engine running through it for the past 4 years

 

[cult45]

dunno about the J30 but there's been plenty of LS and big block engines run through H41/H55 gearboxes, the early 1 piece transfer cases were the only weak point the split transfer cases seem to cope ok, my H55 is pretty worn and jumps out of reverse and 2nd and has coped with my 6.0 LS engine running through it for the past 4 years

Did you up it?

 

[Bret]

I am sure there is much higher but have been running 330hp and 450ft/lbs for years (knock on wood) and no trouble yet. 383/H55/split case.

 

[Mace]

Split tcases are very strong.

J30 trannys are not that robust...