Cadillac 425/472/500 Models 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979 7.0L/7.7L/8.2L. o2 locations: 0. Outlet Flange Thickness: 3/8".
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Qualcast Chevy BBC 454 1.720" STD 11/32" Stainless Steel Exhaust Valves SET OF 8
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