1 EXHIBIT 4.6 MODIFICATION TO FIFTH AMENDMENT TO CREDIT AGREEMENT MODIFICATION TO FIFTH AMENDMENT TO CREDIT AGREEMENT (this "Modification"), dated as of April 20, 1998, among COLTEC INDUSTRIES INC, a corporation organized and existing under the laws of the State of Pennsylvania (the "Company"), Coltec Aerospace Canada Ltd., an Ontario corporation (the "Canadian Borrower"), the various Subsidiaries of the Company that are Credit Parties on the date of this Modification, the various Banks party to the Credit Agreement referred to below, BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIATION (as successor by merger to Bank of America Illinois), as Documentation Agent, THE CHASE MANHATTAN BANK, as Syndication Agent, BANKERS TRUST COMPANY, as Administrative Agent, and BANK OF MONTREAL, as Canadian Paying Agent. All capitalized terms used herein and not otherwise defined shall have the respective meanings provided such terms in the Credit Agreement. W I T N E S S E T H : WHEREAS, the Company, the Canadian Borrower, the Banks, the Documentation Agent, the Syndication Agent, the Canadian Paying Agent and the Administrative Agent are parties to a Credit Agreement, dated as of March 24, 1992, amended and restated as of January 11, 1994 and further amended and restated as of December 18, 1996, (as amended, modified or supplemented to the date hereof, the "Credit Agreement"); WHEREAS, the Company, the Canadian Borrower, the Banks, the Documentation Agent, the Syndication Agent and the Administrative Agent have previously entered into the Fifth Amendment to Credit Agreement to provide, among other things, for the sale by the Company of a Subsidiary thereof and the application of the proceeds of such sale, all in accordance with the terms and subject to the conditions set forth in the Fifth Amendment to Credit Agreement; WHEREAS, the parties hereto have agreed to modify the Fifth Amendment to Credit Agreement as herein provided; NOW, THEREFORE, it is agreed: I. Modifications to Fifth Amendment to Credit Agreement. 1. Subclause (4) of Section 1 of Part I of the Fifth Amendment to Credit Agreement is hereby amended in its entirety to read as follows: "(4) inserting in clause (e) thereof the following new clauses (ii)(D) and (E), in appropriate order, in the second parenthetical appearing in said clause (e): 2 'and (D) the proceeds of the Holley Performance Disposition pursuant to Section 9.02(xxiii) and (E) the proceeds of the issuance of TIDES, New Senior Notes or New Senior Exchange Notes, as the case may be.'" 2. Section 9 of Part I of the Fifth Amendment to Credit Agreement is hereby amended in its entirety to read as follows: "Section 9.02 of the Credit Agreement is hereby amended by (x) deleting the word "and" at the end of clause (xxi) thereof, (y) deleting the period at the end of clause (xxii) thereof and inserting a semi-colon in lieu thereof and (z) inserting in appropriate order the following new clauses: '(xxiii) so long as there shall exist no Default or Event of Default (both before and after giving effect thereto), the Company shall be permitted to dispose of the business of Holley Performance by the sale of 100% of the capital stock of, or all or substantially all of the assets of, Holley Performance, which sale transaction may include the sale of those assets of the Company or a Subsidiary thereof utilized solely by Holley Performance in its business, and the lease (and any subsequent sale) of certain industrial development facilities owned or utilized by Holley Performance financed by City of Bowling Green, Kentucky industrial revenue refunding bonds in the original aggregate principal amount of $1,000,000 maturing on March 1, 2009 (collectively, the "Holley Performance Disposition"), so long as (A) such sale transaction is for fair market value (as determined in good faith by the Board of Directors of the Company), (B) the business and assets of Holley Performance shall not have materially changed from the business and assets, respectively, of Holley Performance on the Fifth Amendment Effective Date and (C) such sale transaction results in consideration consisting of at least 75% (for this purpose, taking the amount of cash and the fair market value of all non-cash consideration, as determined in good faith by the Company) of cash; (xxiv) New Senior Notes and/or New Senior Exchange Notes may be repurchased (so long as retired by the Company) in accordance with the provisions of clause (iv) of Section 9.11; and (xxv) the activities of the Trust and the Company in connection with its issuance of TIDES, and any dissolution of the Trust and distribution of TIDES Mirror Debentures, any conversions of TIDES Mirror Debentures into common stock of the Company, repurchases or redemptions of TIDES by the Trust in accordance with the provisions of Section 9.03 and corresponding repurchases or redemptions of TIDES Mirror Debentures by the Company in each case as contemplated by the documentation relating to the TIDES and the TIDES Mirror Debentures shall be permitted without causing a violation of this Section 9.02.'" 3. Section 25 of Part I of the Fifth Amendment to Credit Agreement is hereby amended in its entirety to read as follows: -2- 3 "Section 11 of the Credit Agreement is hereby further amended by inserting in appropriate order the following new definitions: ''Fifth Amendment' shall mean the Fifth Amendment to this Agreement, dated as of March 16, 1998. 'Fifth Amendment Effective Date' shall mean the date the Fifth Amendment becomes effective in accordance with its terms. 'Holley Performance' shall mean Holley Performance Products Inc, a Delaware corporation. 'Holley Performance Disposition' shall have the meaning provided in Section 9.02(xxiii). 'New Senior Exchange Notes' shall have the meaning provided in Section 9.04(xxi). 'New Senior Notes' shall have the meaning provided in Section 9.04(xxi). 'TIDES' shall have the meaning provided in Section 9.13(a)(viii). 'TIDES Guarantee' shall have the meaning provided in Section 9.04(xxii). 'TIDES Mirror Debentures' shall have the meaning provided in Section 9.04(a)(xxii). 'Trust' shall have the meaning provided in Section 9.13(a)(viii).'" II. Miscellaneous. 1. In order to induce the Banks to enter into this Modification, the Company and the Canadian Borrower hereby represent and warrant that (i) all representations and warranties contained in Section 7 of the Credit Agreement are true and correct in all material respects on and as of the Modification Effective Date (as defined below) and after giving effect to this Modification (unless such representations and warranties relate to a specific earlier date, in which case such representations and warranties shall be true and correct as of such earlier date) and (ii) there exists no Default or Event of Default on the Modification Effective Date after giving effect to this Modification. 2. This Modification is limited as specified and shall not constitute a modification, acceptance or waiver of any other provision of the Credit Agreement or any other Credit Document. 3. This Modification may be executed in any number of counterparts and by the different parties hereto on separate counterparts, each of which counterparts when executed and delivered shall be an original, but all of which shall together constitute one and the same -3- 4 instrument. A complete set of counterparts shall be lodged with the Company and the Administrative Agent. 4. THIS MODIFICATION AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE LAW OF THE STATE OF NEW YORK. 5. This Modification shall become effective on the date (the "Modification Effective Date") when each Credit Party (including without limitation, the Company, the Canadian Borrower and each Subsidiary Guarantor) and the Required Banks shall have signed a counterpart hereof (whether the same or different counterparts) and shall have delivered (including by usage of facsimile transmission) the same to the Administrative Agent at its Notice Office. This Modification and the agreements contained herein shall be binding on the successors and assigns of the parties hereto. 6. From and after the Modification Effective Date, all references in the Credit Agreement and each of the Credit Documents to the Credit Agreement shall be deemed to be references to the Credit Agreement as modified hereby. * * * -4- 5 IN WITNESS WHEREOF, the parties hereto have caused a counterpart of this Modification to be duly executed and delivered as of the date first above written. COLTEC INDUSTRIES INC By________________________________ Title: COLTEC AEROSPACE CANADA LTD. By________________________________ Title: BANKERS TRUST COMPANY, Individually and as Administrative Agent By________________________________ Title: BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIATION Individually and as Documentation Agent By________________________________ Title: THE CHASE MANHATTAN BANK, Individually and as Syndication Agent By________________________________ Title: -5- 6 BANK OF MONTREAL, Individually and as Canadian Paying Agent and Canadian Documentation Agent By________________________________ Title: ALLIED IRISH BANK, PLC, CAYMAN ISLANDS BRANCH By________________________________ Title: BANK OF IRELAND By________________________________ Title: BANK COMMERCIALE ITALIANA NEW YORK BRANCH By________________________________ Title: By________________________________ Title: BANK LEUMI TRUST COMPANY OF NEW YORK By________________________________ Title: -6- 7 THE BANK OF NEW YORK By________________________________ Title: BANK OF SCOTLAND By________________________________ Title: BANK OF TOKYO-MITSUBISHI TRUST COMPANY By________________________________ Title: NATEXIS BANQUE BFCE, formerly BANQUE FRANCAISE DU COMMERCE EXTERIEUR By________________________________ Title: CIBC INC. By________________________________ Title: THE YASUDA TRUST & BANKING COMPANY, LTD. By________________________________ Title: -7- 8 COMMERCIAL LOAN FUNDING TRUST I By Lehman Commercial Paper Inc., not in its individual capacity but solely as administrative agent. By________________________________ Title: CORESTATES BANK By________________________________ Title: CREDIT LYONNAIS ATLANTA AGENCY By________________________________ Title: CREDIT LYONNAIS NEW YORK BRANCH By________________________________ Title: THE DAI-ICHI KANGYO BANK, LTD. By________________________________ Title: -8- 9 FIRST UNION NATIONAL BANK (f/k/a First Union National Bank of North Carolina) By________________________________ Title: THE FUJI BANK, LIMITED, ATLANTA AGENCY By________________________________ Title: ERSTE BANK DER OESTERREICHISCHEN SPARKASSEN AG (f/k/a Girocredit Bank AG Der Sparkassen, Grand Cayman Island Branch) By________________________________ Title: THE INDUSTRIAL BANK OF JAPAN, LIMITED By________________________________ Title: LEHMAN COMMERCIAL PAPER INC. By________________________________ Title: -9- 10 LLOYDS BANK PLC By________________________________ Title: MELLON BANK, N.A. By________________________________ Title: NATIONSBANK, N.A. By________________________________ Title: THE SAKURA BANK, LTD. By________________________________ Title: THE SANWA BANK, LIMITED By________________________________ Title: SOCIETE GENERALE By________________________________ Title: -10- 11 THE SUMITOMO BANK, LIMITED By________________________________ Title: THE TOKAI BANK, LIMITED NEW YORK BRANCH By________________________________ Title: WACHOVIA BANK, N.A. By________________________________ Title: BT BANK OF CANADA By________________________________ Title: BANK OF AMERICA CANADA By________________________________ Title: THE CHASE MANHATTAN BANK OF CANADA By________________________________ Title: -11- 12 CREDIT LYONNAIS CANADA By________________________________ Title: CANADIAN IMPERIAL BANK OF COMMERCE By________________________________ Title: MELLON BANK CANADA By________________________________ Title: Acknowledged and agreed: AMI INDUSTRIES INC CII HOLDINGS INC COLTEC CANADA INC COLTEC INDUSTRIAL PRODUCTS INC COLTEC INTERNATIONAL SERVICES CO COLTEC NORTH CAROLINA INC. COLTEC TECHNICAL SERVICES INC DELAVAN INC (F/K/A DELAVAN NEWCO INC.) GARLOCK INC GARLOCK INTERNATIONAL INC GARLOCK OVERSEAS CORPORATION HABER TOOL COMPANY INC HOLLEY PERFORMANCE PRODUCTS INC JAMCO PRODUCTS, LLC MENASCO AEROSYSTEMS INC STEMCO INC WALBAR INC By__________________________ Title: On behalf of each of the above Subsidiary Guarantors -12-