I am assembling a 273- 2 barrel from 1967. Bought a Milodon brass freeze plug kit. One item in that kit is a silver colored concave shaped (dish-like or hemispherical - like) item of 1 5/8“ Does this dish belong on this particular engine or is it for another year/size small-block?

Thanks for replying

Ragnar in Iceland

66 Charger, 451, .582" lift, 11" conv. 4.10:1. 4118 lbs 11.75@117 mph on regular Firestone Firehawk radials.
Icelandic Champion in MC 2007, 2008, 2009 and 2022.