Patterson Posted April 10, 2013 Report Share Posted April 10, 2013 (edited) Specific GM Intakes with either of the following casting numbers: 3972110 or 3965577 Edited April 10, 2013 by Patterson Link to comment Share on other sites More sharing options...
NHRATA Posted April 10, 2013 Report Share Posted April 10, 2013 I might have a 396557 . Let me check Link to comment Share on other sites More sharing options...
Patterson Posted April 10, 2013 Author Report Share Posted April 10, 2013 I had to edit that 3965577. Basically for the 300 HP 350. Not sure what year range it was used on. Link to comment Share on other sites More sharing options...
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