[70STOVEBOLT]

I put my short block in and that was enough weight to install the springs. I had the rear wheels on the ground and the front on jack stands under the front crossmember. I put a jack under the lower control arm and put the spring into the pocket and jacked it up until I coulld out the nuts on the ball joints and torqued them down. 402 here also

DISCLAIMER: My truck came from the factory with a six, so my springs are the original six cylinder springs. I don't know if that makes a difference or not, but factory big block springs may be heavier. I will say, the front end did not drop much, if at all, with the big block.