1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 ALL CYLINDER HEAD

Part Number: 10134359

ALL  CYLINDER HEAD - Part Number 10134359
Cylinder Head 18 Degree Aluminum. Low-port 18-degree aluminum cylinder head for maximum-effort competition engines. These heads offer significant improvements over conventional head designs with 18-degree valve angles (vs. older 23-degree angles) and 43-cc combustion chambers. Spark plug holes are centrally located, valve centerlines are relocated, and the exhaust ports are high-flow. Head face has an extra 0.080-inch of material for 9.1:1 compression. Up to 2.20-inch intake valves can be used. Shallow wedge-shaped combustion chambers allow builder to achieve high compression ratios with small piston domes. Heads do not include valve seats or guides. Aftermarket shaft-mounted rocker arm assemblies and pushrods are required. Piston domes and valve pockets must be matched to the revised combustion chamber design.
18 Degree Aluminum 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990

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