dude, put your 20R head on a early 22R block, basically all you need from the 22 is the block, everything else use the 20R
except the rocker arms and cover use the 22R one
Just mate the 2 together? I thought that I had to upgrade the camshaft, and swap out the 22R valves to the 20R head, port/polish the head, bore the block and bigger pistons...etc...etc...
