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Tech Question
Dale Hynes, Prince George, BC, Canada, 1969 Valiant Signet 318
I have a question which has vexed me for some time, about 318 cranks. I have read many books and surfed online sites to find out the true nature of the 318 crank. Some books say it was forged until 1967, others say forged from 68-72 and even others say it was never forged. The online information is just as sketchy with no definite answer at all. Even Chrysler's books say different things. I have always thought they were cast cranks. Can you set me straight on this subject?
Dale
They were definitely forged in the early days. The "break" (pun intended) to cast iron came in 1968. You can take that info to the bank.
Of course, HD 318-3 truck engines were premium forgings. The above info is for passenger cars and LD trucks.
Rick
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