CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT I, John Grady, Executive Vice President of WESTLAKES INSTITUTIONAL PORTFOLIOS (the "Registrant"), certify that: 1. The Form N-CSR of the Registrant (the "Report") fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and 2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant. Date: SEPTEMBER 5, 2003 /S/ JOHN GRADY ------------------------------- --------------------- John Grady I, Thomas Trala, Chief Financial Officer of WESTLAKES INSTITUTIONAL PORTFOLIOS (the "Registrant"), certify that: 1. The Form N-CSR of the Registrant (the "Report") fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and 2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant. Date: SEPTEMBER 5, 2003 /S/ THOMAS TRALA ------------------------------- --------------------- Thomas Trala