Part#AS0086R - AussieSpeed. Ford Y block, Customline and Mainlines, sand cast rocker covers,low fin design are available in as cast & polished finish.There were many early speedboats,hotrods & customs fitted with the customline,F100,Thunderbird,mercury & fairlane Y block engines being restored to day, get that retro look. Raw Casting is shown. Suit Ford V8 Y blocks built 1955 to 1959.