Advice for my 454?

[93FatBottom]

So I'm prepping the 454 to drop into my K20, and I've gone over the basics, new oil pump, new rear main seal, pan gasket, double roller timing set and gasket for the cover, new freeze plugs, etc etc. But then I began considering if my heads were good, or restricting like those god awful heads off my TBI 454, so I pulled the block and the head casting numbers.

Block: 14015445

Heads: 14081045

The motor came out of a 1984 Winnebago motorhome, 30k original miles, the motors clean, oil was clean, filter element wasn't half bad, I think this motor is still fresh and good to go. It's going into a 1980 Chevy K20 on 40 inch ground hawgs. I good power to spin them 40's with ease, but I don't want no race truck, Just a good strong 454 to perform nicely in the truck. I'm planning on a new cam in the future, but for now I just want the motor to be strong-stock, reliable, and not have any reason to yank it out any time soon. i can do the cam with the motor in the truck. I'll also be doing a new oil pressure sender so I don't have to worry about that. I have new motor mounts, so I don't gotta worry about that, new flex plate and bolts, torque converter bolts (though I'm running the original torque converter from when the truck had the factory 400 small block), so I'm not anticipating any future issues anytime soon. I'm keeping all my air injection crap for when I need to smog it, but for now I'm axing the smog pump and the exhaust manifolds, running hedman long tube headers off a 1978 K20 that I scrapped years ago (does anyone know what kind of shop I can bring the headers to to be cleaned and coated? They're rusted to hell inside and out, and I want them clean and ready to go when I bolt them up) so I only need the belt for the alternator and the power steering pump.

Also, does anyone have any recommendations in terms of my heads and rotating assembly? I just want to keep the motor good and strong. I'm told my heads are crappy, but I don't know what to change them out for. I want to run regular pump gas 87 octane, gas is expensive enough haha. I won't be doing a tear down until way later down the road. The only plans for the near future is basic maintenance and a camshaft upgrade so I get good torque but make her scream through the RPM band. Thanks in advance guys!