Quicksilver OEM MerCruiser V8 1981-2002 GM Exhaust Manifold – 807078T10 This genuine OEM part is designed for use with MerCruiser V8 GM engines made between 1981 and 2002. This hot dipped manifold boasts outstanding corrosion resistance and can be used on either the port or starboard side. Application Info: MerCruiser V8 engines 454 or 502 CID engines made by GM between 1981 – 2002 Special Order Item.Special Order Quicksilver Information:Additional Handling Time: Item transfers from an alternate warehouse requires an additional 13 business days to ship.Non Returnable: This item is ordered specifically for your application and cannot be returned or canceled once processed.Verify Fitment Before Ordering: Please confirm compatibility with your engine model.