Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
We have issued our report dated November 3, 2006 (except for Note 5 as to which the
date is November 29, 2006), accompanying the consolidated financial statements and schedule
included in the Annual Report of SIFCO Industries, Inc. on Form 10-K for the year ended September
30, 2006. We hereby consent to the incorporation by reference of said report in this Registration
Statement of SIFCO Industries, Inc. on Form S-8.
/s/ Grant Thornton LLP
Grant Thornton LLP
Cleveland, Ohio
March 8, 2007
3