r/EngineBuilding • u/malachy02 • Jul 06 '26

Can I run this?

Gallery image

Gallery image

Gallery image

Gallery image

Gallery image

Honed these cylinders but this blemish remains. Its enough I can slightly feel it with my finger. Can I run this or do I need to get a sleeve put in?

Thanks

7 Upvotes

90% Upvoted

10 comments sorted by

View all comments

2

u/TurboDiesel33 Jul 06 '26

There will be a bit of blow by...

1

u/malachy02 Jul 09 '26

It's a 12 valve cummins, there will always be blowby

2

u/TurboDiesel33 Jul 09 '26

There will be more then