New competition valve cotter, these are precision CNC machined from 4340 and heat treated to a better spec than EN24T and claimed to be stronger in fatigue life.

These locate better in the valves and easier to control spring heights.

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...

160lbs on the nose at 400" for standard Cooper S or twin spring set ups. See C-AEA526 and C-AEA527 for later developed springs. These are ok for all standard uses but are improved and uprated over all original factory fitted...

We stock a limited range of Paul Ivey developed Rimflow valves for the A-Series.

30.9mm (1.217") diameter exhauste valve for 12G940 large bore casting is oversized to the stock version. Not only can you pick-up performance from...

1.259" (32.00) dia x 3.57 long Exhaust valve.


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

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...

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.

Made in EN214N steel and chrome plated for use with standard iron valve guides.

33.3mm (1.311") inlet valve easily noticable by there odd shape they are claimed to give better flow characteristics in standard or slightly modified engines.

If you want performance then you know you have to get as much air into the cylinder as possible. The bigger the valves the more this is possible. The standard 1275 mini and Sprite motor has only 1.3" intake valves, the standard Cooper "S" has 1.41" i...