1) when installing the heads, sll should know that the push rod tubes are like tryiong to corral cats. So I made these retainers to hold the tubes steady while installing the heads. they worked well, but not sure how they will work when the engine is installed and the heads have to be removed for some reason.
2) Another view of the retainers.
3) the same for the heads I used the wchaust port bolt holes to hold the heads still while I cleaned them up, and later installed the new Thread Serts for the plugs.