wildcat1562 Posted February 11, 2007 Share Posted February 11, 2007 looking to see what motor is in the 66 cutlass convertable i havethe 4bbl intake number is390327where would the casting number be on the blockwould it be 330 or otherplease send me an email atghilderband@wi.rr.comthank youGreg Link to comment Share on other sites More sharing options...
joe_padavano Posted February 11, 2007 Share Posted February 11, 2007 390327 is the casting number for the 4bbl intake used on the 330. If it's an original engine then it would be a 330. Go to the FAQ at 442.com for all the casting numbers you'd ever want. Link to comment Share on other sites More sharing options...
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