Home - Evo - Focus RS  - Used Parts - Link ECU'sSearch Checkout Contact  







Shopping cart  Shopping cart
0 Product(s) in cart
Total £0.00
» Checkout


Copyright © 2001 - 2016

Home » Mitsubishi Evo 4-9 » Engine Internals UPPER

Product ID: evo-034029
ND DOUBLE valve spring kit (Many parts included)
ND DOUBLE valve spring kit (Many parts included)
These double springs feature wide coil yet strong and consistent clamping forces to be achieved throughout your valve train. Evo engines tend to suffer valve float at a variety of specifications, these springs will erradicate that condition in 100% of engines.

This is a comprehensive kit that INCLUDES;

ND double valve spring set
Bottom platforms
Ti retainer set
Small valve stem seal set

This wide coil allows spring valve lifts as high as 12mm to be utilised without the fear of damaging coil bind or loss of valve control. We have run these springs over 10,000rpm, 1300Hp and 60Psi boost! NOTE:- When using these springs the little shelf on the cylinder head needs extra clearance. We do this with a die grinder. See picture 2 for info by clicking above.

Price: £499.00 (£598.80 Inc. VAT)

« Previous | Next »

ND Evo 9 SWB is competing in the UK Time Attack series for 2019, Keep an eye on our social media for updates and the Norris Designs YouTube channel for in car videos.

ND Version 3 supercharger kits proving themselves out there all around the world! Zero lag!

ND Version 4 dry sump kits in stock and ready to ship. Featuring the SUPERB Auto Verdi oil pump.

ND Colt Ralliart is competing th CCRC Saloons Championship again in 2019. Going great so far!

Norris Designs are the UK agent for Bullet engine blocks. We stock 4G63 & 4G64 versions. As used in our Evo 9 SWB demo car.

Find us on.