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The procedures included in this S3 head are as below;
- Port, polish & blend
- Modify combustion chambers & balance volumes
- Fully de-burred
- Skimmed surface
- 3 angle valve seats
Parts included with head;
- ND valve spring kit
- ND shim set
- ND Ti retainers
- ND 1mm oversize inlet valves
- ND 2mm oversize inconnel exhaust valves
- ND bronze valve guides
- New high temp valve stem seals
(Suits stroker engines best) (Rated to 950Hp)
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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.
Version 3 supercharger kits proving themselves out there all around
the world! Zero lag!
Version 4 dry sump kits in stock and ready to ship. Featuring the
SUPERB Auto Verdi oil pump.
Colt Ralliart is competing th CCRC Saloons Championship again in
2019. Going great so far!
Designs are the UK agent for Bullet engine blocks. We stock 4G63
& 4G64 versions. As used in our Evo 9 SWB demo car.