How to Rebuild VW Air-Cooled Engines: 1961-2003 (SA221) by S-A Design . This book covers rebuilding the VW Type 1, 2, and 3 engines beginning in 1961, when a significant redesign improved the basic initial design. Step-by-step color photos provide in-depth, hands-on rebuilding information, while engine model types, identification codes, specifications, and details help the user source a good candidate for rebuilding or retrofitting. This service manual by Access Tools provides the most comprehensive repair information in paper format available on the market. This manual is produced using the highest quality printer available. more details on - https://www.carid.com/s-a-design/how-to-rebuild-vw-air-cooled-engines-1961-2003-mpn-sa221.html