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© 2013 by Walt Thurn

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Edit by Paul Johnson

Layout by Monica Seiberlich

ISBN 978-1-61325-121-8

Item No. SA284

Library of Congress Cataloging-in-Publication Data

Thurn, Walt.

How to restore your C3 Corvette : 1968-1982 / by Walt Thurn.

pages cm

1. Corvette automobile--Conservation and restoration. I. Title.

TL215.C6T498 2013

629.28’722--dc23

2013007443

Title Page: This 1972 convertible, owned by Jim Oliver, is an excellent example of what a nicely restored C3 can look like with a proper restoration. It is not a numbers matching award winner, but it features new suspension, fresh engine, and drivetrain. It is a daily driver and all of the goodies work including its air conditioner.

Back Cover Photos

Top Left: The body needs to be placed on a movable dolly to securely support and safely store it during restoration. The dolly gives you flexibility to work on the frame and body in separate areas. The body will be on this dolly for quite awhile so make sure it is secured correctly before removing the lift pads from the birdcage.

Top Right: The lower control arm is removed from the front frame. Check to make sure that the suspension bolts have been completely removed from the frame before attempting to remove the arm from the frame.

Middle Left: When rebuilding the differential, check the end play in the side yokes once the clutch pack has been correctly assembled and installed into the differential housing. Again, you are looking for a clearance measurement of .05 to .010 inch. If it is not correct, the assembly needs to be removed and a different size shim must be installed. Repeat this process until you get the correct measurement.

Middle Right: Here is the completed rear trailing arm assembly that is attached to the frame. The rear brake calipers are mounted to the rotors and the brake hoses are connected to the brake lines. The parking brake cable is secured to the trailing arm with a clip. The calipers are attached to the trailing arm with two 5/8-inch headed bolts that are torqued to 70 ft-lbs.

Bottom Left: During the painting process, the primer/sealer is applied to the body. This coat of paint fills all of the small imperfections on the surface of the body. Keep the spray gun about 12 inches above the surface and keep level with the contours of the body. Spray in one long continuous pattern to the end of the panel. Move up 3 inches and spray back the other way until the car is completely covered.

Bottom Right: When the engine is rebuilt, the cylinders often need to be overbored but in this case, they just need to be honed. The honing process has been completed on this block and this is what the finished job looks like.