Here's a new set of CB Performance heavy duty Dual Valve Springs Set

High revving engines need the extra protection of dual valve springs. Most high performance single valve springs will prevent valve float below 6000 RPM. Engines that are designed to hit 6500 RPM should be equipped with #1491 Dual Hi-Rev Valve Springs.

The Dual Hi-Rev Valve Springs supplied by CB are manufactured of silicone treated steel to help stand the stress of high performance driving.

INSTALLATION NOTE: It is necessary to machine the cylinder head valve spring boss before installing dual valve springs., we can do this in our machine shop if you need, get in touch. 
I personally use these parts in my builds and am 100% satisfied with the quality and longevity of these parts so please buy with confidence.

Postage to UK only at the moment and I aim to dispatch within 48 hours of purchase sent typically with Royal Mail


BJs Speedshop is a family owned business based in South East England with over 20 years experience.

We build and supply performance turnkey aircooled engines for stock, fast road and race car for both classic Porsche and VW. Our engines have been shipped out and used in road and race cars across the UK and Europe with great success.

As well as our engine building program we also have machine shop facilities, fully equipped workshop and keep a wide variety of performance and stock parts.

Whether you have a VW Beetle, VW Bus or any other Aircooled variant with type 1 or type 4 engines and need some extra performance get in touch.