Are Hardened Valve Seats Necessary? - Y-Blocksforever
Looks like I will be doing a valve job on my 56.I am pretty sure the heads are original.Do I need to have hardened valve seats installed when redoing the heads? You should put hardened seats in your engine if you have the heads off. Now, having said that, I ran my 57 Ford 292 for many years on unleaded gas and never had a problem. ...
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