This listing is for a re-ring kit compatible replacements for 1969-1985 Small Block Chevy engines with 2-Piece Rear Main, Large Journal. This is a STD Size. This kit will not work with the 1986 and later engines due to the metric rings used in those engines. Ring sizes available: STD, .020, .030, .040, .060 .080. Main bearing sizes available: STD, .010, .020 .030 Rod bearing sizes available: STD, .010, .020 .030 This kit includes: Fel-Pro Gasket set, King Engine Road & Main Bearings and Hastings or Mahle cast Rings. This is a Standard/Stock Size Kit. We offer Oversize Rings, Rods and Mains are at no extra cost. Please message or call to let us know the specific sizes you need to verify availability before ordering, otherwise your kit will ship with Standard Sizes.