Cast Iron Exhaust Manifold 00464136 Fits for Chevrolet C10 C20 C30 K10 K20 Pickup 4.1L 4.8L L6 88305366Description: This is a New Manifold that will fit the inline 6cyl , straight 6cyl GM, Chevrolet engine sizes, 194, 230, 250, 292, 4. 1L, 4. 8L. This is a universal flange that fits the 2 bolt and 3 bolt style flange. This manifold is for the NON INTEGRAL style head. This manifold is not machined for the Heat Riser Assembly (the flapper valve). OE Number: 00464136, 3918982 Will Fit Following Models: Fits for Chevrolet C10 1976 4. 1L Fits for Chevrolet