[76GMC1500]

There is more to cylinder wear than scoring. *You need to measure the cylinder for taper. *Take measurements at the top middle and bottom of the cylinder. *All engines wear differently, most wear more at the top, a small block Chevy wears most in the center. *Wherever it is widest, if it's out of spec, it will cause premature wear of the piston ring grooves. *As the piston travels down in the cylinder, the ring expands and contracts to conform to varying bore diameters. *Excessive ring groove wear will lead to broken ring lands and piston rings.

If there is no ridge at the top of the cylinder caused by the ring wearing into the cylinder walls, you are generally safe to just hone. I still suggest you have the cylinders measured for taper anyways. Your engine will run quieter and last longer if you build it right.