So here's the low down I bought a ke70 all was fine and dandy until a couple days after she overheated one day so I turned her off and popped the cap off (with plenty of rags under my hands) filled her back up made my way home checked the radiator and it seemed fine but then I thought !@#$ it i will just replace the head gasket as it wouldn't hurt and would fix my problem, as I was undoing the bolts I noticed one was snapped in the block! so my father proceeded to drill the snapped bolt out but made quite a mess ( he drilled too far and made the diameter bigger and more towards the piston) so i am just asking what am I to do? also will my head be warped?
Cheers any feedback or advice will be great