If you want to convert your 318 to a magnum head mill I've got rebuilt Magnum heads with the proper Mopar Performance springs, retainers and keepers, valves and seats ground, cleaned and inspected. I also have a Comp cam #20-222-3 262/270 duration.462/.470 lift or .492/.501 with the 1.6:1 Magnum rockers. I have the proper AMC lifters and Mopar pushrods for the Magnum head conversion.I also have the #P4876759 MP headbolt package I have a #7577 Edelbrock RPM Air Gap intake and a pair of Mopar performance black finned valve covers for Magnum. I'll have to dig up the reciepts and give you a price if you're interested. I would like to sell the whole thing but would intertain piecing it out. Pm me. toolmanmike PS everything is new except for the heads.