Anyone out there know where I can find .030-.040 thick valve spring locators? Springs are 1.625" od., .770 id. w/.570 dia. valve guide. Plenty of .060's out there. Have some samples on the way,but sometimes the numbers aren't what they are thought to be until you measure them in hand. It is possible that at that thickness and that spring,they may not be considered strong enough.Any ideas? Cutting the seats is out, as the heads are heavily ported Thanks, Bill