Fits All Small Block Chevy V8 Engines from '55+ using the Standard Exhaust Pattern - 283, 305, 327, 350, 400 etc. (except 1971 Chevrolet Nova,1972 Chevrolet Caprice，1983 Chevrolet Caprice Classic Sedan 4-Door 5.0L,1984 Buick Regal ,1986 Chevrolet Caprice 5.7,1987 Chevrolet Caprice,1978 Chevrolet corvette，1973 Chevrolet Nova Base 5.7L 350 ).
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