302 heads-Is it worth putting them on a stock 318

I have a little 318 that is totally stock and I have an opportunity to purchase a set of 302 swirl port heads for a reasonable price. Is it worth installing them on a totally stock 318 for a slight compression bump and flow? Currently it has a set of late 70's heads.

Cam
Then you will need a torque converter
Then you will want different gears
Then you will want to replace the 302 heads with some aluminum heads
Now you will 'need' a new intake and carb(s)
Then you will want to stroke it
Then you will need a newer cam
Then you will want a big block. I suggest the 383. ;)

Don't start down the carparts highway to hell!