In one of the other threads someone was saying that to improve the 22RE use the head off a 20R but this only works on early (pre 85) 22RE's then they went on saying if you can find an early 21R head it is like the 20R head but will fit on a late 22RE. Thats why i'm interested in how the head stud pattern changes between 85-86.
would the 21R-C head fit on an 86 22RE and most importantly would it do anything.