getting heads fixed old valve guides (stock) were in pretty bad shape i could push 3 out with my finger now the shop says i need oversized valve guides i think he says 557 is the size i need he cant get them from his place for another 2-3 weeks does any one know where i can buy these from? thanks

 

i have searched online have not been able to find any. any ideas?

 

i found the right size they are not 0.577 the stock ones are 0.557 i need 0.04 over i found some 0.561