FYREANT

Cylinders with 30K will be glazed over. If you replace the piston rings and do not break the glaze on the cylinder wall the rings won't seat very well. It will still "work", but I wouldn't do it.

RFZ

i had a set of ported heads that leaked coolant into cylinder on a ls1. bent the rod when i tried to start it. changed the rod and motor is still running strong after 11 years.

tjg9493

did you hone and re-ring at the same time and if you did was it just that cylinder or all of them?

Kevin Parent

Have you found out if the rod was bent yet?

tjg9493

unfortunately I've been really busy this week so no, but im going to dial indicator them today and even if its not bent, ill probably swap out that cylinders parts anyhow. Id rather just do it now and not when i spin a rod or crack a piston in a week.

when i tried to start the car it stoped and i could hear pretty loudly air/water leaking out (ppppsssssssss) asuming i blew the head gasket with arp studs that would take an immense amount of pressure that the rod and bearing and piston all had to deal with as well so weather or not that cylinder rod/piston/ bearing is damaged i feel that its better to just swap it out for peace of mind

Kevin Parent

Agreed. Good decision.

tjg9493

The question now if what grit hone do u buy 180 seems super aggressive as i dont want to take off to much material #400 maybe?

robert miller

Give ANT a message on it, as long as it has a small amount of pattern on the wall should do the job.

FYREANT

320 grit. Need to get specific type of material for it too. Look at my "how to" thread on cylinder honing in the C7 tech section.

tjg9493

Awsome thanks

FYREANT

https://www.corvetteforum.com/forums...lt1-block.html

Theres a link to the exact brush hone you need in the thread. You can order the part number through Summit.

RFZ

just repaired the one cylinder, ball honed the cylinder, used original piston/rings, no issues

tjg9493

how did you ball hone without getting grit in the engine? This is what i would like to do just wasnt sure if i could do it without getting grit in the crank bearings and such

FYREANT

I sure wouldn't take that risk personally..

RFZ

pretty easy, some rags around crank , rags bottom crankcase making sure they do not get caught by hone, light hone without going crazy with honing oil, good cleanup and ready to assemble. i did not have any cylinder damage just bent rod.

FYREANT

At what mileage did you do the first oil change afterwards? I would hope no more than 100 miles or so as theres no way to "really" get all the fine particles out. That's why they recommend nylon brush honing after ball honing to clean the particles out..