Intake port opinion.

[Philv6]

Bolt hole break thru into the intake port. This is a GN1R head.
Just curios if this is a common thing when the head has been converted to a stand style rocker arm setup?
How bad is this on port flow?
Would this be a good candidate for epoxy to close it up?

 

[turbo nasty]

TIG and reblend, then watch your fastner depth prep the second time around.
Give Tom a call at Champion hes a good guy and will give you some pointers.

 

[bison]

Don't do anything. It won't do anything to flow. Use rtv on the bolts

 

[norbs]

Or high temp teflon sealer, RTV is not fuel resistant supposed, says on the tube usually...

 

[Mike E]

Every ford roundy-round yates head is like that and it's never a problem for them. As they said, use sealant on the bolts so you don't pull oil into the port.

 

[turbofabricator]

Ream the hole one size larger and epoxy a bronze tube in place. This is a typical fix for any Max ported cylinder head. My iron heads have brass tubing in both the head bolt holes and the push rod holes. The brass tubing is available at most hobby shops in 64ths.

 

[slamming 6]

Epoxy them easy and works