Ok, so I'm finally getting around to putting up some photos from when I rebuilt the motor.
This is the block just after I pulled the head off...nasty. I managed to get the scoring out by simply honing the bore with a medium grade cylinder hone, I used Kero to lubricate rather than cutting oil. I did however have to cut the ridges out of the top of the cylinders with a ridge removal tool before I could get the pistons out because I didn't want to damage the pistons-saved a lot of dollars because the pistons were all fine once cleaned up.
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