A few little things on the engine mods. First a do-over of the thermactor plugs in the exhaust ports. I had earlier just cut off the AIR nozzle tubes and welded the old fittings shut. But that looked pretty ugly. So I made new plugs that drop into the port followed by threaded plugs to hold them in. The threads in the head are 9/16 – 18 NF so I went looking for that size set screws without any luck at reasonable price, so I wound up using #6 ORB hydraulic port plugs and cutting the heads down in the lathe so they would screw down into the port. A #6 JIC cap was used to hold the plugs in the lathe chuck. Looks much cleaner now.










Last edited by J Gregg; 02/20/21 03:24 AM.

Cheers John