NHRA Engine Blueprint Specifications

Blueprint specifications contain information vital to building NHRA legal Stock and Super Stock engines. Critical dimensions, as well as casting numbers for cylinder heads, intake manifolds, etc., that are verified during teardown inspection, are contained in the Blueprint Specifications.

Engines are listed by manufacturer and year, and identified by cubic inch displacement and original, advertised horsepower. If you do not find a particular engine listed, it means specifications for that engine were never received from the OEM, and the engine is not eligible for competition in Stock and Super Stock.

Clicking on a link below will allow you to either download the file to your hard drive or to open the file in your word processing program.

Files can be opened with Word or similar word processing program.

American Motors Top

Bore/Stroke

1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1977 1979 1984 

Buick Top

Bore/Stroke

1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1993 1994 1995 1996 1997 1998 1999 

Cadillac Top

Bore/Stroke

1977 1978 1979 1986 1987 1988 1990 

Chevrolet Top

Bore/Stroke

1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983