Do you have the originals and if so they aren't pitted? Then just akneel they .Heat them wiht a torch till they a red hot (not melted!) and let them air cool. This will soften them like new. I do it with turbo and steam turbine parts that have alot more psi than you 429 motor......Dave
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Dave Folk, '87GN, '84 1/2 Aniversary 350 GT '79 T/A 6.6 Convertable WS6
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