OER Parts offers a wide selection of Manifold Hardware for your 1974 Chevrolet C10 Pickup. OER Parts offers 1974 Chevrolet C10 Pickup Bolts, 1974 Chevrolet C10 Pickup Exhaust Flanges, 1974 Chevrolet C10 Pickup Extension Pipes, 1974 Chevrolet C10 Pickup Header & Exhaust Manifold Paint, 1974 Chevrolet C10 Pickup Header & Exhaust Manifold Wraps & Blankets, and 1974 Chevrolet C10 Pickup Heat Risers.