Guest imported_oldpatt Posted March 30, 2007 Posted March 30, 2007 I have a set of used Mickey Thompson Valve covers that have the casting "Oldsmobile 330-425" on the underneath side. Whatyear models would these fit? ThanksDavid
rocketraider Posted March 30, 2007 Posted March 30, 2007 1964-later 307-330-350-403, 1965-later 400-425-455. Good find. There may be some differences in the holes for breathers, PCV etc.
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