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Veloce Publishing
October 23, 2019
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How To Power Tune Jaguar XK 3.4, 3.8 & 4.2 Litre Engines

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How To Power Tune Jaguar XK 3.4, 3.8 & 4.2 Litre Engines
A Veloce Classic Reprint

By Des Hammill
About the Author

Jaguars;XK;XJ6;4.2;power tuning engines;how to power tune jaguars;camshaft;timing;carburation;engine performance;ignition system

ISBN: 978-1-845849-60-3

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£ 19.99 Postage + P&P (eBook prices vary, and delivery is free)

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Available again!
All you need to know about getting maximum performance with reliability from the famous Jaguar XK six-cylinder engine. A book packed with easily understood and down-to-earth advice based on the author’s many years of hands-on experience.


Available again after a long absence!
How to Power Tune Jaguar XK Engines - this book gives full details on camshafts, camshaft timing, valve springs and cylinder head options and modifications. Carburation chapters cover: 13/4 and 2 inch twin SU setups; triple 2 inch SUs; and triple Weber and Dellorto setups. A special section is included on modifying SUs for improved engine performance, along with the relevant needle specifications. There are also full details on ignition systems and timing, exhaust manifolds and systems and general tune-up information.

Independent Reviews

This new revised and updated edition will be a welcome returnee for many as it’s been out of print for several years, now. Hammill, an expert on such matters, guides you through every aspect of re-building and modifying these engines.
Total Kit Car

Surely, the Jaguar XK engine is one of the most venerable engines of all time. This new publication is in the same vein as others within this series. Des Hammill goes into detail of how to best extract more power from the DOHC engine without spending a zillion dollars.
What I liked about this publication is that it focuses closely on the race-winning D-type version engine and reminds us that it wasn't too dissimilar to the production engine but was still powerful enough to propel the car to just under 180mph. The publication goes into detail on the separate components of the engine including the block, crankshaft, conrods, cylinder head, camshafts, ignition, carburettors and exhaust system. It tells the reader that like other engines, the secret of the XK engine is the cylinder head. We're advised that the best standard head is from the XJ6 Series 111. Luckily, that head fits the 3.4, 3.8 and of course, the 4.2 engines, provided that you plug two of the coolant holes for the smaller engines.
If you're into Jaguars, this is a most useful publication.
Australian Classic Car

If you're planning to rebuild a Jaguar XK engine – even just to stock specification – get hold of this book first. It has lots of top-notch advice and good, clear illustrations.


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