Body on Frame or Unibody better platform? (Page 2 of 2)

All it takes to hold that thing back is a half block??
Is it a "Unibody" or a full frame?

Adding to my notes to make the rear of the cage easily reversable for future mods

done well and within a reasonable amount of time, many unibody cars will put up with decapitation and re-capitation with little to no ill effects.

my civic roadster has been missing its roof for almost a decade, and all the doors still work.

so far as the OP's question...it depends on what you are trying to do. i'd lean towards uni-body, since most body-on-frame vehicles don't really have enough space between the rails to fit a FWD drivetrain. this necessitates a back half'd frame, and once you are building new frame rails, you've lost whatever benefit the b-o-f gave you.

besides, you can always put new frame rails in a uni-body car.

this:

went here:

to make this:

let me repeat:

my 82 civic lost its head almost ten years ago; and after a few thousand miles and sitting outside for most of that time, all the doors still work as expected.

the only bracing i added was two tubes running the length of the tunnel:

(and that c-pillar bar in the foreground, which doesn't really do anything, we've found...and since we've pulled the left tunnel bar for seat clearance....it doesn't seem to do much either)

if this car can put up with almost a decade of this kind of treatment, i'm sure your uni-body car can put up with a weekend's worth of sitting on jack stands.

besides, it how all the dirt oval (full stock and mini stock) guys around here do their cages: cut the pillars, weld in the cage, weld up the pillars.