Posted by Dozerman51 [108.235.117.172] on Thursday, January 09, 2014 at 15:31:27 :
In Reply to: Re: 4:89 Ring & Pinions posted by Jens [173.213.132.81] on Wednesday, January 08, 2014 at 23:16:25 :
I thought all the Chrysler flatheads came from the factory with hardened "Exhaust" seats which allows us to run the "Panther Urine" fuel we are running in them now. Also, I've heard said that the intake valve seats although non-hardened can be run on the above mentioned crap fuel since there is not as much heat transfer to the seat as opposed to the exhaust seat.
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