Is it a street /strip engine or just street ? If just street use, they should be OK. APR makes good stuff, I reused my head bolts a few times and they still torque fine--
Rod bolts are under more stress but for mild street engines, they aren't stressed that much. Keep in mind I'm thinking of stock stroke engines, any engine with a 4 inch stroke is going to put much more stress on everything, including the rod bolts. Another killer is rpm, a stock stroke 340 can handle 6,000 rpms better then a 408 at 5,500 rpm. It comes down to piston speed.
Just don't put a solid cam in it and hit 7,000 each time you shift gears. If you keep the rpms on a 360 to 5,500 or less, I see no problems as long as the compression isn't too high or the timing is not off..better to have slightly not enough timing vs slightly too much
