Decompression Valve Port 55 Rancher

[Rastus]

Ordered/received top end overhaul kit for 55 Rancher. New cylinder is drilled/tapped for a decompression valve. Old cyl was not. Can I get a fitting to plug the port and will it be ok?

 

[cuinrearview]

Yes.
And yes

 

[P.M.P.]

I'd pack with jb weld and forget about it...