Edelbrock Valve Cover Signature Series Chevrolet 1959-1986 262-400 CI V8 Low ChromeThe Edelbrock #60079 Performer RPM Cylinder Heads are designed for use with 1961 76 390 427 428 Ford applications. Performer RPM heads are perfect for street performance, daily drivers and muscle cars where more performance is needed. This Part Fits: Year Make Model Submodel 1977,1980 Buick Century Base 1977 1979 Buick Century Custom 1980 Buick Century Estate 1978 1980 Buick Century Limited 1978 1979 Buick Century Special 1978 Buick Century Sport 1978