Chevrolet By the NumbersTM is the only authoritative reference for identifying and verifying correct Chevrolet parts, by casting number, for your exact model. If you're 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. And if you're buying a Chevrolet that has been restored, these numbers will help you determine if the car has been authentically restored. Searching for factory high-performance parts at swap meets? Chevrolet By the NumbersTM tells you which parts to look for, and which engines those parts came with. Other books rely on secondhand information or out-of-date part numbers. These are original GM casting numbers for V8 Chevrolet and drivetrain parts for 1965-1975, using original Chevrolet's engineering blueprints, technical service bulletins, and build sheets. Interviews with the original manufacturers and engineers bring you fascinating stories of parts development from behind the factory gates. Most of this information has never before been seen in public. Engines are covered from the ultra-rare, high-performance aluminum 427 for the ZL-1, to the common 283 found in Impala station wagons - engine blocks, cylinder heads, pistons, connecting rods, crankshafts, camshafts, manifolds, and more, are listed.