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Chevrolet by the Numbers: 1970-75

The Essential Chevrolet Parts Reference

by Alan L. Colvin

Softcover, 8 3/8 in. x 11 in.
312 pages
220 photos and illustrations
GM Part No. 24502564
ISBN-13: 978-0-8376-0927-0
Price: $64.95

How to identify and verify V-8 drivetrain parts for small and big blocks on Chevrolet passenger cars from 1970-1975, including:

  • Chevelle
  • Corvette
  • Bel Air
  • Impala
  • Camaro
  • Nova
  • Monte Carlo
  • El Camino

Based extensively upon original source materials from Chevrolet Archives

"Each volume comprehensively covers parts identification and applications with charts galore, and it's chock-full of GM archival photos, blueprints, and diagrams. If you want to know what Chevy used which part, this is the place to look."
- Chevy High Performance

Chevrolet by the Numbers is the only authoritative reference for identifying and verifying the correct Chevrolet parts, by casting number, for your exact model.

  • Restoring your Chevrolet to original factory specifications? You'll find the casting numbers that correspond to your car's Vehicle Identification Number. With this correct information you will avoid buying - and being sold - the wrong parts.
  • Buying a Chevrolet that has been restored? These numbers will help you determine whether or not the car has been authentically restored, and whether it's a smart investment.
  • Searching for factory high-performance parts at swap meets? Chevrolet by the Numbers tells you which parts to look for, why they are special, and which engines those parts came with.

Other books rely on secondhand information or out-of-date part numbers. Author Alan Colvin documented every casting number for every Chevrolet V-8 engine and drivetrain part from 1955 through 1975, using original source material in Chevrolet's archives, including engineering blueprints, technical service bulletins, and build sheets. He interviewed the original manufacturers and engineers and brings you fascinating stories of parts development from behind the factory gates. Most of this information has never before been seen in public.

Engines covered:

  • 262
  • 350
  • 402
  • 307
  • 400
  • 454

If you absolutely want to know the original part numbers for your Chevrolet drivetrain - not just what interchanges or fits - but the correct part that came with your car when it rolled off the assembly line - Chevrolet By The Numbers has the answer.

click to enlarge, and for longer caption if available
Fig. 3-5.
Two-bolt big block, showing rear oil filter area and 3 holes to be checked to determine crankshaft bolt pattern. (Pointer indicates location where portion of Vehicle Identification Number (VIN) is stamped on some engines.
click to enlarge, and for longer caption if available
Fig. 3-7.
Brand new for the 1970 model year was the 400 engine block. It was similar to the 350, but with a different bore and stroke. As a result, most of the internal parts were new, including crankshaft, pistons, rings, and rods. Head gaskets were not interchangeable, due to the water jacket holes shown above on the 400.
click to enlarge, and for longer caption if available
Fig. 12-6.
Cast iron distributor model number (in this case 1112053 for a 1971 Corvette) is stamped on metal band on distributor shaft.

Summary of changes to this edition

If you already own this book, you may find it useful to see a comprehensive list of the changes from each printing of the book. Download the PDF file (68 kb) below:


Reader Response Form

Are you having trouble identifying a part on your car? Is there a part on your car that you believe is original, but its casting number is not listed in this book? Are there codes that you don't understand? Are you interested in the national trim validation service mentioned in Chapter 1? If so, print the PDF of our reader response form, fill it out, noting where your question or comment is, and mail or fax it to the author at the address listed. Help make this book the best reference it can be.


Chevy by the Numbers: 70-75
Chevy by the Numbers: 70-75
Wholesale Case Quantity: 10
ISBN: 0-8376-0927-5 (ISBN-10)
ISBN: 978-0-8376-0927-0 (ISBN-13)
Permalink: http://www.bentleypublishers.com/c/GC75