CarTech®, Inc.
838 Lake Street South
Forest Lake, MN 55025
Phone: 651-277-1200 or 800-551-4754
Fax: 651-277-1203
© 2018 by Scott Ross
All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without prior permission from the Publisher. All text, photographs, and artwork are the property of the Author unless otherwise noted or credited.
The information in this work is true and complete to the best of our knowledge. However, all information is presented without any guarantee on the part of the Author or Publisher, who also disclaim any liability incurred in connection with the use of the information and any implied warranties of merchantability or fitness for a particular purpose. Readers are responsible for taking suitable and appropriate safety measures when performing any of the operations or activities described in this work.
All trademarks, trade names, model names and numbers, and other product designations referred to herein are the property of their respective owners and are used solely for identification purposes. This work is a publication of CarTech, Inc., and has not been licensed, approved, sponsored, or endorsed by any other person or entity. The Publisher is not associated with any product, service, or vendor mentioned in this book and does not endorse the products or services of any vendor mentioned in this book.
Edit by Paul Johnson
Layout by Monica Seiberlich
ISBN 978-1-61325-459-2
Item No. CT581
Library of Congress Cataloging-in-Publication Data
Names: Ross, Scott, author.
Title: 1970 Plymouth Road Runner in Detail no. 10 / Scott Ross.
Description: Forest Lake, MN: CarTech, [2017]
Identifiers: LCCN 2016041203
Subjects: LCSH: Road Runner automobile--History. | Plymouth automobile--History. | Muscle cars--United States--History.
Classification: LCC TL215.R585 R67 2017 | DDC 629.222/2--dc23
LC record available at https://lccn.loc.gov/2016041203
Written, edited, and designed in the U.S.A.
10 9 8 7 6 5 4 3 2 1
Front Cover: For 1970, the Hemi Road Runner remained the most powerful engine in the lineup. Equipped with two 4-barrel carburetors, the 426 was modestly rated at 425 hp. This rare hardtop carries the 727 TorqueFlite automatic transmission, Air Grabber hood, and A32 Super Performance Axle package with 4.10 gears, and Rallye wheels with Goodyear Polyglas GT F60-15 tires. (Photo Courtesy David Newhardt)
Frontispiece: The Air Grabber drew in mass quantities of cool outside air for enhanced performance. Keeping the Air Grabber open not only helped the 426 on the strip, it was also an intimidating factor while the vehicle was staging next to its opponent. (Photo Courtesy David Newhardt)
Title Page: The 1970 Road Runner featured aggressive updated exterior styling and the best high-performance drivetrain packages that Plymouth offered, all built with Chrysler’s rugged and reliable Unibody construction. For 1970, the Road Runner was offered in three body styles: hardtop, coupe, and convertible (shown). (Photo Courtesy David Newhardt)
Contents Page: Only 34 Road Runner convertibles were factory equipped with the 440 Six Barrel engine option in 1970, and this is 1 of 20 built with a 4-speed manual transmission. The A12 option package that joined the Road Runner’s option list in the spring of 1969 added a third engine choice, the 440 Six Barrel, whose three Holley 2-barrel carburetors atop an aluminum intake manifold by Edelbrock created 390 hp. (Photo Courtesy David Newhardt)
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TABLE OF CONTENTS
383 Magnum
440 Six Barrel
426 Hemi
Transmissions
Rear-Axle Assemblies and Differentials