Gibson Performance Exhaust Exhaust System Kit - 66512 ⚠ Check if this part fits your vehicle Select your vehicle to confirm fitment before you buy. Select vehicle Harmonic Balancer Manufacturers: Gibson Performance Exhaust , Proform $106.99 Qty: Add to cart Ship to Select country United States of America Afghanistan Åland Islands Albania Algeria American Samoa Andorra Angola Anguilla Antarctica Antigua and Barbuda Argentina Armenia Aruba Australia Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bermuda Bhutan Bolivia (Plurinational State of) Bonaire, Sint Eustatius and Saba Bosnia and Herzegovina Botswana Bouvet Island Brazil British Indian Ocean Territory Brunei Darussalam Bulgaria Burkina Faso Burundi Cabo Verde Cambodia Cameroon Canada Cayman Islands Central African Republic Chad Chile China Christmas Island Cocos (Keeling) Islands Colombia Comoros Congo Congo (Democratic Republic of the) Cook Islands Costa Rica Côte d'Ivoire Croatia Cuba Curaçao Cyprus Czechia Denmark Djibouti Dominica Dominican Republic Ecuador Egypt El Salvador Equatorial Guinea Eritrea Estonia Eswatini Ethiopia Falkland Islands (Malvinas) Faroe Islands Fiji Finland France French Guiana French Polynesia French Southern Territories Gabon Gambia Georgia Germany Ghana Gibraltar Greece Greenland Grenada Guadeloupe Guam Guatemala Guernsey Guinea Guinea-Bissau Guyana Haiti Heard Island and McDonald Islands Holy See Honduras Hong Kong Hungary Iceland India Indonesia Iran (Islamic Republic of) Iraq Ireland Isle of Man Israel Italy Jamaica Japan Jersey Jordan Kazakhstan Kenya Kiribati Korea (Democratic People's Republic of) Korea (Republic of) Kuwait Kyrgyzstan Lao People's Democratic Republic Latvia Lebanon Lesotho Liberia Libya Liechtenstein Lithuania Luxembourg Macao Madagascar Malawi Malaysia Maldives Mali Malta Marshall Islands Martinique Mauritania Mauritius Mayotte Mexico Micronesia (Federated States of) Moldova (Republic of) Monaco Mongolia Montenegro Montserrat Morocco Mozambique Myanmar Namibia Nauru Nepal Netherlands New Caledonia New Zealand Nicaragua Niger Nigeria Niue Norfolk Island North Macedonia Northern Mariana Islands Norway Oman Pakistan Palau Palestine, State of Panama Papua New Guinea Paraguay Peru Philippines Pitcairn Poland Portugal Puerto Rico Qatar Réunion Romania Russian Federation Rwanda Saint Barthélemy Saint Helena, Ascension and Tristan da Cunha Saint Kitts and Nevis Saint Lucia Saint Martin (French part) Saint Pierre and Miquelon Saint Vincent and the Grenadines Samoa San Marino Sao Tome and Principe Saudi Arabia Senegal Serbia Seychelles Sierra Leone Singapore Sint Maarten (Dutch part) Slovakia Slovenia Solomon Islands Somalia South Africa South Georgia and the South Sandwich Islands South Sudan Spain Sri Lanka Sudan Suriname Svalbard and Jan Mayen Sweden Switzerland Syrian Arab Republic Taiwan, Province of China Tajikistan Tanzania, United Republic of Thailand Timor-Leste Togo Tokelau Tonga Trinidad and Tobago Tunisia Turkey Turkmenistan Turks and Caicos Islands Tuvalu Uganda Ukraine United Arab Emirates United Kingdom of Great Britain and Northern Ireland United States Minor Outlying Islands Uruguay Uzbekistan Vanuatu Venezuela (Bolivarian Republic of) Vietnam Virgin Islands (British) Virgin Islands (U.S.) Wallis and Futuna Western Sahara Yemen Zambia Zimbabwe * Other * Shipping Method Name Estimated Delivery Price No shipping options Apply Custom wishlist OK Add to wishlist Add to compare list Email a friend Engine Harmonic Balancer Products specifications Attribute name Attribute value Muffler Body Length 19.000 in. Tail Pipe Diameter 2.500 in. Tubing Diameter 2.500 in. Inlet Inside Diameter 3.000 in. Tip Diameter 6.000 in. Exhaust Type Cat-Back Exit Position Front of Rear Tire Material Stainless Steel WARNING CA Proposition 65 Message WARNING: Motor vehicles contain fuel; oils and fluids; battery posts; terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer; birth defects and other reproductive harm. These chemicals are found in vehicles; vehicle parts and accessories; both new and as replacements. When being serviced; these vehicles generate used oil; waste fluids; grease; fumes and particulates; all known to the State of California to cause cancer; birth defects; and reproductive harm. WARNING CA Proposition 65 Yes Feature/Benefit Fits Chevy small and big block engines. Category Harmonic Balancer Internally/Externally Balanced External RPM Limit 6000 RPM Applications Chevy Big Block 454 Engines Pre to 1989 🚗 Compatible with 333 vehicles are compatible with this product Year Make Model 1975 Chevrolet Bel Air 1976 Chevrolet K5 Blazer 1977 Chevrolet K5 Blazer 1978 Chevrolet K5 Blazer 1975 Chevrolet C10 1976 Chevrolet C10 1977 Chevrolet C10 1978 Chevrolet C10 1979 Chevrolet C10 1980 Chevrolet C10 1975 Chevrolet C10 Suburban 1976 Chevrolet C10 Suburban 1977 Chevrolet C10 Suburban 1978 Chevrolet C10 Suburban 1979 Chevrolet C10 Suburban 1980 Chevrolet C10 Suburban 1975 Chevrolet C20 1976 Chevrolet C20 1977 Chevrolet C20 1978 Chevrolet C20 1979 Chevrolet C20 1980 Chevrolet C20 1981 Chevrolet C20 1982 Chevrolet C20 1983 Chevrolet C20 1984 Chevrolet C20 1985 Chevrolet C20 1986 Chevrolet C20 1981 Chevrolet C20 Suburban 1982 Chevrolet C20 Suburban 1983 Chevrolet C20 Suburban 1984 Chevrolet C20 Suburban 1985 Chevrolet C20 Suburban 1986 Chevrolet C20 Suburban 1975 Chevrolet C20 Suburban 1976 Chevrolet C20 Suburban 1977 Chevrolet C20 Suburban 1978 Chevrolet C20 Suburban 1979 Chevrolet C20 Suburban 1980 Chevrolet C20 Suburban 1975 Chevrolet C30 1976 Chevrolet C30 1977 Chevrolet C30 1978 Chevrolet C30 1979 Chevrolet C30 1980 Chevrolet C30 1981 Chevrolet C30 1982 Chevrolet C30 1983 Chevrolet C30 1984 Chevrolet C30 1985 Chevrolet C30 1986 Chevrolet C30 1975 Chevrolet Caprice 1976 Chevrolet Caprice 1975 Chevrolet El Camino 1976 Chevrolet G20 1975 Chevrolet G30 1976 Chevrolet G30 1975 Chevrolet Impala 1976 Chevrolet Impala 1976 Chevrolet K10 1980 Chevrolet K10 1976 Chevrolet K20 1977 Chevrolet K20 1978 Chevrolet K20 1985 Chevrolet K20 Suburban 1977 Chevrolet K30 1980 Chevrolet K30 1981 Chevrolet K30 1982 Chevrolet K30 1983 Chevrolet K30 1984 Chevrolet K30 1985 Chevrolet K30 1986 Chevrolet K30 1975 Chevrolet Monte Carlo 1976 Chevrolet P20 1979 Chevrolet P20 1975 Chevrolet P30 1976 Chevrolet P30 1977 Chevrolet P30 1978 Chevrolet P30 1979 Chevrolet P30 1980 Chevrolet P30 1981 Chevrolet P30 1982 Chevrolet P30 1983 Chevrolet P30 1984 Chevrolet P30 1985 Chevrolet P30 1986 Chevrolet P30 1975 GMC C15 1976 GMC C15 1977 GMC C15 1978 GMC C15 1979 GMC C1500 1980 GMC C1500 1975 GMC C15 Suburban 1976 GMC C15 Suburban 1977 GMC C15 Suburban 1978 GMC C15 Suburban 1979 GMC C1500 Suburban 1980 GMC C1500 Suburban 1975 GMC C25 1976 GMC C25 1977 GMC C25 1978 GMC C25 1979 GMC C2500 1980 GMC C2500 1981 GMC C2500 1982 GMC C2500 1983 GMC C2500 1984 GMC C2500 1985 GMC C2500 1986 GMC C2500 1975 GMC C25 Suburban 1976 GMC C25 Suburban 1977 GMC C25 Suburban 1978 GMC C25 Suburban 1979 GMC C2500 Suburban 1980 GMC C2500 Suburban 1981 GMC C2500 Suburban 1982 GMC C2500 Suburban 1983 GMC C2500 Suburban 1984 GMC C2500 Suburban 1985 GMC C2500 Suburban 1986 GMC C2500 Suburban 1975 GMC C35 1976 GMC C35 1977 GMC C35 1978 GMC C35 1979 GMC C3500 1980 GMC C3500 1981 GMC C3500 1982 GMC C3500 1983 GMC C3500 1984 GMC C3500 1985 GMC C3500 1986 GMC C3500 1975 GMC G25 1976 GMC G25 1976 GMC G35 1976 GMC Jimmy 1976 GMC K15 1980 GMC K1500 1976 GMC K25 1977 GMC K25 1978 GMC K25 1976 GMC K25 Suburban 1977 GMC K25 Suburban 1979 GMC K3500 1980 GMC K3500 1981 GMC K3500 1982 GMC K3500 1983 GMC K3500 1984 GMC K3500 1985 GMC K3500 1986 GMC K3500 1975 GMC P35 1976 GMC P35 1977 GMC P35 1978 GMC P35 1979 GMC P3500 1980 GMC P3500 1981 GMC P3500 1982 GMC P3500 1983 GMC P3500 1984 GMC P3500 1985 GMC P3500 1986 GMC P3500 1975 GMC Sprint 1970 Chevrolet Bel Air 1971 Chevrolet Bel Air 1972 Chevrolet Bel Air 1973 Chevrolet Bel Air 1974 Chevrolet Bel Air 1970 Chevrolet Biscayne 1971 Chevrolet Biscayne 1972 Chevrolet Biscayne 1973 Chevrolet Blazer 1974 Chevrolet Blazer 1970 Chevrolet Brookwood 1971 Chevrolet Brookwood 1972 Chevrolet Brookwood 1973 Chevrolet C10 Pickup 1974 Chevrolet C10 Pickup 1973 Chevrolet C10 Suburban 1974 Chevrolet C10 Suburban 1973 Chevrolet C20 Pickup 1974 Chevrolet C20 Pickup 1973 Chevrolet C20 Suburban 1974 Chevrolet C20 Suburban 1973 Chevrolet C30 Pickup 1974 Chevrolet C30 Pickup 1970 Chevrolet Caprice 1971 Chevrolet Caprice 1972 Chevrolet Caprice 1973 Chevrolet Caprice 1974 Chevrolet Caprice 1970 Chevrolet Chevelle 1971 Chevrolet Chevelle 1972 Chevrolet Chevelle 1973 Chevrolet Chevelle 1970 Chevrolet Corvette 1971 Chevrolet Corvette 1972 Chevrolet Corvette 1973 Chevrolet Corvette 1974 Chevrolet Corvette 1970 Chevrolet El Camino 1971 Chevrolet El Camino 1972 Chevrolet El Camino 1973 Chevrolet El Camino 1974 Chevrolet El Camino 1973 Chevrolet G10 Van 1974 Chevrolet G10 Van 1973 Chevrolet G20 Van 1974 Chevrolet G20 Van 1973 Chevrolet G30 Van 1974 Chevrolet G30 Van 1970 Chevrolet Impala 1971 Chevrolet Impala 1972 Chevrolet Impala 1973 Chevrolet Impala 1974 Chevrolet Impala 1973 Chevrolet K10 Pickup 1974 Chevrolet K10 Pickup 1973 Chevrolet K10 Suburban 1974 Chevrolet K10 Suburban 1973 Chevrolet K20 Pickup 1974 Chevrolet K20 Pickup 1973 Chevrolet K20 Suburban 1974 Chevrolet K20 Suburban 1973 Chevrolet K30 Pickup 1974 Chevrolet K30 Pickup 1970 Chevrolet Kingswood 1971 Chevrolet Kingswood 1972 Chevrolet Kingswood 1970 Chevrolet Monte Carlo 1971 Chevrolet Monte Carlo 1972 Chevrolet Monte Carlo 1973 Chevrolet Monte Carlo 1974 Chevrolet Monte Carlo 1970 Chevrolet Nova 1971 Chevrolet Nova 1973 Chevrolet P10 Van 1970 Chevrolet P20 Van 1971 Chevrolet P20 Van 1973 Chevrolet P20 Van 1970 Chevrolet P30 Van 1971 Chevrolet P30 Van 1973 Chevrolet P30 Van 1974 Chevrolet P30 Van 1970 Chevrolet Townsman 1971 Chevrolet Townsman 1972 Chevrolet Townsman 1973 GMC C15/C1500 Pickup 1974 GMC C15/C1500 Pickup 1973 GMC C15/C1500 Suburban 1974 GMC C15/C1500 Suburban 1973 GMC C25/C2500 Pickup 1974 GMC C25/C2500 Pickup 1973 GMC C25/C2500 Suburban 1974 GMC C25/C2500 Suburban 1973 GMC C35/C3500 Pickup 1974 GMC C35/C3500 Pickup 1973 GMC G35/G3500 Van 1974 GMC G35/G3500 Van 1973 GMC Jimmy 1974 GMC Jimmy 1973 GMC K15/K1500 Pickup 1974 GMC K15/K1500 Pickup 1973 GMC K15/K1500 Suburban 1974 GMC K15/K1500 Suburban 1973 GMC K25/K2500 Pickup 1974 GMC K25/K2500 Pickup 1973 GMC K25/K2500 Suburban 1974 GMC K25/K2500 Suburban 1973 GMC K35/K3500 Pickup 1974 GMC K35/K3500 Pickup 1970 GMC P25/P2500 Van 1971 GMC P25/P2500 Van 1970 GMC P35/P3500 Van 1971 GMC P35/P3500 Van 1973 GMC P35/P3500 Van 1974 GMC P35/P3500 Van 1971 GMC Sprint 1972 GMC Sprint 1973 GMC Sprint 1974 GMC Sprint 1970 Chevrolet Estate 1988 GMC C3500 1988 GMC K3500 2002 Dodge Ram 1500 2003 Dodge Ram 1500 1988 Chevrolet C3500 1988 Chevrolet K3500 1988 Chevrolet R20 1987 Chevrolet R20 1988 Chevrolet R30 1987 Chevrolet R30 1988 Chevrolet V30 1987 Chevrolet V30 1987 GMC R2500 1988 GMC R2500 1987 GMC R3500 1988 GMC R3500 1987 GMC V3500 1988 GMC V3500 2004 Dodge Ram 1500 2005 Dodge Ram 1500 1987 GMC R2500 Suburban 1988 GMC R2500 Suburban 1987 Chevrolet R20 Suburban 1988 Chevrolet R20 Suburban 1987 Chevrolet V20 Suburban 1988 Chevrolet V20 Suburban 1988 GMC G3500 1987 GMC P3500 1988 Chevrolet G30 1987 Chevrolet P30 1988 Chevrolet P30 1979 GMC P1500 1988 GMC P3500 1979 Chevrolet C70 1979 GMC C7000 1980 Chevrolet C70 1980 GMC C7000 1975 Excalibur Phaeton 1976 Excalibur Phaeton 1977 Excalibur Phaeton 1978 Excalibur Phaeton 1979 Excalibur Phaeton 1972 Excalibur Phaeton 1973 Excalibur Phaeton 1974 Excalibur Phaeton