Originally Posted by nismo_star
did the machine shop you had do the original bore n hone use a tq plate ? if yes, are your pistons good ? was the motor nice and quiet ? how is the block bore now, nice hatches on walls ? Answer no to any of the above questions, would suggest you go 87mm. If you answered yes to all of the above questions, re-use your old pistons and make a few passes on an oil /wd40 soaked 320 grit ball hone, clean the block, keep it freshly oiled, don't let dirt inside, and reassemble with new rings/ bearings.
did the machine shop you had do the original bore n hone use a tq plate ? if yes, are your pistons good ? was the motor nice and quiet ? how is the block bore now, nice hatches on walls ? Answer no to any of the above questions, would suggest you go 87mm. If you answered yes to all of the above questions, re-use your old pistons and make a few passes on an oil /wd40 soaked 320 grit ball hone, clean the block, keep it freshly oiled, don't let dirt inside, and reassemble with new rings/ bearings.
It's not a matter of a damaged cylinder wall or something, everything is still fresh from the shop and BNIB. The thing is, they DIDN'T use a tq plate. And I wanted a fresh, good block to begin my build with.