Take a look at this classic British race bike. Image taken from the Allen Vintage Motorcycle Museum in Boston, Massachusetts.

Features an article from the August 1965 "CycleWorld" Magazine that examines the history and mechanics of this unique engine.

Features a profile of Paul Dunstall that explains his roots, his engine modifications and the bikes that resulted. Includes bike specifications.

Offers a profile of the bike and parts builder, plus photos and specs for a selection of Norton bikes. Includes a Norton article bibliography.

Features an article from a 1970 motorsport magazine that describes one racer's Norton customized with a Hillman 900cc 4-cylinder engine.

Find out what sorts of alterations were made to a stock Manx engine by this inspired race engineer.

Features an article from a 1960 motorcycle magazine that explores the rumor and truth behind the existence of a 125cc racing quad.

Article from the July 1964 issue of Cycle World describes the addition of a 998cc Vincent Rapide engine to an empty Norton Featherbed frame.

Caferacer.com provides step-by-step instructions and pictures for building a bike made from a Norton Featherbed frame and a Triumph engine.