I am installing SB Chevy valves in my 304 heads. Would there be any problems milling down the AMC valve guide casting and hogging them out for a 0.500" bronze bushing designed for SB Chevy valve stem diameter and seals?

Here are two links to what I am considering.


http://cgi.ebay.com/ebaymotors/Chev-...em120222187236

http://cgi.ebay.com/ebaymotors/Bronz...mZ200199782272

These would work well with the SB Chevy seals:

http://cgi.ebay.com/ebaymotors/Teflo...mZ180215375203

Thanks,
Greg Taylor :) <><