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LIGHTWEIGHT VALVE TOP CAPS

These are manufactured from top quality aircraft aluminium and are hard anodised red or high grade steel and heat-treated.

VALVE SPRING SHIMS

We have had these made specifically so that the race engines and badly worn road engines can have all the valve springs shimmed to the correct length. We have two sizes of bore diameter available to suit valve guides with or without circlips.

HEAVY DUTY CYLINDER HEAD STUD

This Cylinder Head Stud is manufactured from the highest grade steel and heat-treated in order to have a greater resistance to stretching and therefore helps reduce head gasket problems.

The waisted design gives a greater clamp load as the gasket compresses.

16 studs are required for 6 cylinder.

HEAVY DUTY CYLINDER HEAD NUT

A replacement for the standard with increased quality.

HEAVY DUTY CYLINDER HEAD WASHER

Our Heavy Duty Cylinder Head Washer is a must when using an aluminium head, although is also recommended for iron heads.

PLEASE NOTE:

- 11 washers are required for 4 Cylinder
- 16 washers are required for 6 Cylinder

ROLLER ROCKER KIT

Comprising of roller rocker arms made from aircraft specification aluminium, offset steel posts, spacers and shaft.

This kit is fully assembled, ready to fit to the engine (the push rod holes require machining a little for clearance, and valve to block clearance should be checked).

Our Roller Rocker Kit is considerably lighter and higher ratio than the standard and therefore not only reduce valve guide wear it also give increased valve lift (1.65:1 theoretical ratio).

TUFTRIDED ROCKER SHAFT

We have this specially heat-treated to give longer life under high performance conditions.

COMPETITION ENDLESS TIMING CHAINS

Our Competition Endless Timing Chains are top quality.
CENG648 - For normal road and race engines.
CENG648R - Suited to very aggressive drivers (May whine a little).

TAPPET ADJUSTER SCREW

We have reproduced the Tappet Adjuster Screw to the original design with increased high quality 3/8"UNF thread.

CENG702N is light weight lock nut.

NEW CAMSHAFT KITS

In 2003 we totally revised not only the way we sell our camshafts but also the design and manufacturing. We now only sell camshafts packaged complete with followers and cam lube for assembly. We offer the choice of our bucket or standard type cam followers, please specify when ordering (pushrods not included).

There are considerable differences between new and reground cams so the decision should be taken carefully. The relative positioning and relationship between cam and follower is unique to our design in order to promote follower rotation at low rpm. These camshafts are also gun drilled through their entire length, with oil feed holes in each lobe base circle and the oil pump drive gear, thus giving a positive pressure fed oil feed to every hard working part of the cam and follower. The material used is the best available for long life and is fully heat-treated with the lobes made as large as possible to reduce wear. Also now available as a Billet Blank for final profiling and heat treatment to your specification, by ourselves or your cam grinder.

PROFILES

- DWR 1 profile is the only camshaft which will fit without any valve pocket reliefs. This profile is a little better than the BJ8 cam and so works well in any standard or mildly tuned car.
- DWR 2 profile is high lift with 300 degrees duration (requires valve pockets). This profile is very similar to the original ‘Works’ profile and ideal for rally or track day cars and works well with triple Webers for a punch of power as it comes on cam.
- DWR 3 profile is high lift with 320 degrees duration (requires valve pockets). This profile is very similar to the DWR 2 with a little extra duration and overlap. Ideal for race cars and works well with triple Webers.
- DWR 8 profile is a higher lift with mild duration (requires valve pockets). This profile is ideal for fast road or mild rally and works well with twin 2" SU’s or triple Webers for a smooth tractable car. Remember - Prices include followers and cam lube, but not pushrods.

Download the PDF attachment below for a Camshaft Profile Specification sheet that includes a description of the different cam profiles.