Originally Posted by swompz
Glad to know I.measured.valve.correctly, but what about.the.diameter of.the.spring pockets? The springs I was going to use.are.only.1.26" od. But the.pockets on heads are 1.550" can I do this & will I need a locator for the springs??
You can use a cup (Manley, Crane, etc.) or a locator that registers off the spring ID (shown below):
There are those who don't use anything except a hardened shim to keep the spring from fretting against the aluminum head.