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Description
Quality reproduction of the original single, deep groove ALR. (air injection reactor) smog pump pulley designed for use with various 1969-74 Chevrolet models as listed below. This version is specifically designed for 302, 350, 396, 427 high performance small block and big block engines. This single deep groove pulley measures approximately 5-3/4" diameter. Pulley is stamped with original GM part # 3932458.