olds motor swap

[7tcutty]

hello all

ive decided to put some olds power in my truck

455 into 86 k10 truck
id like to know has anyone done this before and what motor mounts and frame mounts will i need to use. i have some from a Firebird. i also plan to use the 700r4 rebuilt with a shift kit. this truck is gonna get driven and its also a plow truck tow rigg and pretty much everything truck.. everyone tells me the 700 wont last behind that big block.
but no one can tell me WHY! i wont be beating the crap out of the truck i just want some TOURQE and with the 373s it should pull stumps
and if anyone has a oe adapter plate for a bop to chevy i could use one!

thanks to all
karl