So yes I picked these Finned Aluminum Valve Cover LT1 Z28 for $100 pretty decent deal but would like to polish them up brightly to match my engine style... the previously owner painted them black but were not the LT1 Vettes covers I do believe... the set does have the metal twist on cap and insides have the dripper.... can someone tell me if these sound to be correct for my 71 Z ? Trying to put the engine back with originality...... I put paint stripper on and took off most the black and buffed a little piece.. shines beautifully but probably would like to professionally done? Any known prices ? Along with is the avaliabilty of the rubber gasket/gromets around to buy because mine are orginal and old?