Posted by gtk on Monday, February 02, 2004 at 10:57PM :
In Reply to: Re: Lead/No-Lead Fuel posted by Vaughn on Monday, February 02, 2004 at 8:13PM :
Chrysler started using hardened exhaust valve seats in the mid to late 30's. If is mentioned in almost every advertisement of the era and was a major feature jump on the competition. They continued to install them on passenger cars and trucks immediately after WWII starting with the "new" 1946 models.
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