OER Parts offers a wide selection of Manifold Hardware for your 1974 Chevrolet K20 Suburban. OER Parts offers 1974 Chevrolet K20 Suburban Bolts, 1974 Chevrolet K20 Suburban Exhaust Flanges, 1974 Chevrolet K20 Suburban Extension Pipes, 1974 Chevrolet K20 Suburban Header & Exhaust Manifold Paint, 1974 Chevrolet K20 Suburban Header & Exhaust Manifold Wraps & Blankets, and 1974 Chevrolet K20 Suburban Heat Risers.