Teague also carries them

https://teaguecustommarine.com/teagu...y-johnson-2116

Ron Sporl is going to take of me on this. He also has the correct intake gaskets. Putting my shipment together today. Had everything in stock.

Ron is a great guy. He has an incredible stock of high end parts, dart blocks, merlin heads, scat rotating assemblies, srp pistons/rings, and runs the cleanest machine shop I have ever seen.
Good luck with your build.