.040 pistons, RPM air gap and a 1407 carb.

oldkimmer said
I have these but probably too low of compression 4 u. 405 CP. They have a Durashield coating on them. I’ll sell them cheap. Looks to be about 2 points lower on compression. Kim

View attachment 1715746399

View attachment 1715746400

We spoke a while back... Unfortunately, they were the 405’s and not the 116’s. I appreciate it though.