As an engine wears, the clearance between the valve stem and guide increases; as this gets beyond tolerances the car will tend to smoke under deceleration (when you take your foot off the throttle). Good valve stem seals will allow for greater wear b...

New MPI 1275cc head casting built up with new valves and springs etc; all set up for unleaded fuel. Last of these brand new castings but obviously slightly soiled paint etc through age. Has standard size valves 33mmx29mm.

For NON MPI cars s...

Genuine Mini Spares valve stem oil seal manufactured with original Dupont Viton, as fitted to the twin points engines, are the best material and seal you can use and although expensive are the best to date in stopping the engine smoking.

Man...

Sold individually.

To help rocker pad to valve stem alignment and reduce friction, the standard springs can be replaced with solid spacers and correctb shim set. The spacers and shim kit are sold as C-AEG392.

Spacers for under the rocker pedestals are used mainly by engine tuners to allow tappet adjustment to be made where cylinder head mods have been carried out. 1.3mm/0.0512" thick, this can be used to hold locating screw on rocker post assembly but the...

Early Large cotter groove exhaust valve. Most small bore engines seem particularly prone to burning valves, it is highly recommended to replace the exhaust valves when you do a valve job! This 1.0" valve fits most early 948cc, 998cc and 1098cc engine...

1.402" (35.6mm) dia x 3.57" long intake valve.

Our race valves are produced in EN214N steel and are stellite tipped and use the latest triple collet groove and current valve head shapes, plasma heat treated for eradicating unleaded petrol we...

1.220" (31mm) dia x 3.57 exhaust valve.

Our race valves are produced in EN214N steel and are stellite tipped and use the later narrow, single collet groove and current valve head shapes.These valves are plasma heat treated to eradicate wear ...

Genuine Mini Spares product as everything else on the market was poor fitting and unstable.

For Performance see 88G459EVO made in the USA by a Specialised Racing product company.

All the earlier heads used the 2A11 cott...

Collet for the 3 groove valve. Sold per half and 2 required per valve.

These cotters go with AHU1897 top cap. On Turbo heads after engine number 102641 were fitted on the inlet only.

All early 850/997/998/1098cc heads u...

If you drive A-Series cars long enough you will eventually have to replace the water pump bypass hose. These are the best quality available to fit without removing the cylinder head but these fluted rubber hoses have a bad reputation so if possible ...

Original type steel 'S' competition top caps for dual springs.

If you are upgrading from single springs or just want to replace those old worn top caps, these better grade material are the best answer. Eight required per head.