Quote:
Originally Posted by millwrightrice
Is putting hardened seats a necessity or not?
What is the worse case scenario if I bulid my 330 without these seats?:
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well, you could got through valves or heads... it all depends on the materials used in manufacturing, and how you drive... If you drive short distances and are easy with the olds... not a biggie.
if you keep adding the lead additive, you should be good too and then shouldn't need the seats.
I honestly havn't performed scientific tests personally, but this information is to the best of my knowledge.
~Joe