Quote:
Originally Posted by FWB
iron heads don't bother me either...the problem is they have valve seats for leaded gas.....non-hardened, and cast iron guides that after 40 years will be worn. replacing guides will require seats to be cut and a complete valve job.
if they have already been redone it's a non issue
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You are right and seating aluminum heads is a special job that it is very expensive for the seats have to be pressed. The alternative is add lead additive to the gas, I used that in my Volvo and it worked great.