Just interested in thoughts ideas about a cylinder head repair .
This is on my CNC source heads . Been fine for about 6 years , ran awesome on saturday
At work monday noticed a bit more moisture in valve covers , not unusual in winter with no pvc valve , normally gone after a weekend racing . Radiator down about a quart
Cleaned 1 cover , rechecked today . Worse .
Pulled heads to checkover .
2 cracks/splits in 2 different intake ports in 1 head . These are right through to headbolt passage , aluminium looks very thin , about 1/2" long.
Appears these may also intersect water ?
Is this simply drill and drive in a sleeve/tube situation ?
Or are these possibly done and beyond repair . The crack is quite down the port

Tex