My stage 2 block had small spiral shanked rivets, 3 per plug, pinning them. The holes drilled for the rivets do not penetrate water jackets. I threw them away after removal because I damaged most of them. I looked for a picture from several rivet web sites to show without luck...
I was planning on not pinning the plugs when I complete my project but you guys have got me scared. Anyone ever crack an 0153 stage 2?
thanks,
Robert
How about McMaster-Carr, put 3260 in the search box and then scroll to the bottom - maybe a No. 0 by 3/16" in stainless steel? Other possibility it seems to me would be to use a split roll pin (page 3216) in 1/16". That said, I think it would be easier to drill and tap three 6-32 holes right next to the freeze plug, and use a large OD washer to overlap the plug and short screw with locktite, rather than trying to angle drill the lip of the plug and into the block (I guess this has less chance of hitting water but seems much harder). Just make sure not to drill through into water, but if you do the locktite also acts as a thread sealer. This would be especially easy with the motor on a stand.