Like I said earlier, I had a HP 360 from a cop car. A lot of that is not true. No oil mods, No w2 heads, special valvesprings were 340, No Hemi style rocker arms, maybe 340 with spring reliefs, No 6 quart oil pan unless in a truck (they all had 6 qt pans), some did have the original 340 cam, there was an updated 340/ HP 360 cam but that did not come in until about 76? The valves did probably have hardend tips like all the 340's, yes windage tray, yes double roller timing set like all 340s, Chrysler always had different carbs for HP cars in auto or manual trans, same for distributors. 68-73 340 auto trans cams are the same and that same cam was used in the HP 360's for 2 or 3 years. I would disregard those sources.