How much power??

I have a 3.9 V8 Disco 1 auto, I am contemplating whether to put in an American Ford V8 with 400hp & 425ft/lbs of torque, can anyone tell me how much power can the standard auto box and transfer box take???

Thanks fellow "Randy Lovers"

Craig in South Africa

The auto box wont stand it but the transfer box,props and axles will be fine.I had a customer with a 110 with a 502cu in chev,it was about 480hp and 550 ft/lb.The gearbox was a strenghened th400 which broke twice but it had a standard 230 transfer box,props and RR cl axles/diffs.He drove it like an idiot but I only replaced one prop uj in 2 years of use.Prior to the big block motor it had a 406cu in small block with nitrous - still no transmission problems - only fuel costs.
The main problem is finding someone to mate the gearbox to the transfer case.I prefer Chev over Ford but only because I am familiar with them,and I have to say it was an interesting job doing the conversion - and great fun testing it ! (You could make it kick down to 2nd gear at 95mph and make it accelerate !)