Not too many people even know that this book even exists. It is a 125 page book printed by Porsche that has detailed parts diagrams and number listings for all the major parts used on all models of the 911 from 1974-89.
PEL-000-147
Porsche Parts and Technical Reference Catalog [More Info]
No Longer Available
Haynes Automotive Repair Manuals
Every Porsche owner should have one of these books. It's a best-buy deal for the 924 & 944. The amount of technical data contained gives a good broad overview on the entire car from engine rebuilds to electrical system debugging. At this price, we know many people who have two; one for the shop and one for reference in their bookcase.
Author: Bruce Anderson. Now featuring 400 color photographs and a fully updated text, this third edition is the best yet. This book shows anyone with the tools and a modicum of skill how to make this great car even better with performance-enhancing tricks and techniques ranging from subtle to extreme. Focusing solely on the air-cooled cars produced from 1963 through early 1998, the Porsche 911 Performance Handbook provides clearly illustrated, easy to follow instructions for making modifications to every working part of the car, from engine and transmission to suspension, brakes, wheels and tires, and more. Author and noted Porsche expert Bruce Anderson goes into questions about buying a 911, custom treatments, and maintenance. Detailed appendices list tune-up specs, conversion charts and handy formulas, and resources. Softbound. 304 pages.