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...

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...

Alloy 8 Port Head with valves/springs /top caps built up to take .500 thou cam lift with approximately 20.5cc combustion chamber.---Minispares have managed to get 148bhp and 120ft lbs of torque.

This is not a straight bolt on part so see [...

CNC Machined and developed as per Mighty Mini SUPER RACE series head but closer to MSE4 for road/rally cars,a briliant head using new machining technology

-outright sale using brand new MPI head casting and valves etc.35.7x29.5m...

Alloy 8 Port Head with 37.mm inlet valves with springs/top caps built up to take .500 thou cam lift with approximately 21cc combustion chamber.

The valve springs used are C-AEA526 with a fitted length of 1.350"

for the ...

Very Hi spec all new alloy 5 port super gas flowing head. Outright sale to save you the risk of loosing £240 on exchange schemes where old heads are traded in and where faults can be found, especially by some companies.





C...

New competition valve cotter for early heads with the large single groove valve, 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 v...

Spring seat shims (set of 4), 0.040" thick (1mm).

Spacer shims to increase valve seat pressure and overall spring rate.

These were also used on all the 8 port head valve seats to prtect the alloy seats from wear. (8 port now C-AHT36...

30.5mm(1.2") longer exhaust valve for the 2012 on 8 port head only

for use with special guides these are plasma heat treated to eradicate premature wear from unleaded petrol--For earlier heads see C-AHT376/7 valves.

The valve size h...

Alloy CNC version of the cylinder head take off 12G2534. The standard item being steel can be prone to corrosion, this CNC alloy version is smart, and will not corrode like steel does

37mm(1.457") longer inlet valve for the 2012 on 8 port head only

for use with special guides these are plasma heat treated to eradicate premature wear from unleaded petrol



3.933" 99.898mm long

1.2"(31mm) intake valve for 12G295 Cooper head 998cc. Also a suitable upgrade for other small bore heads. These have the large collet groove 8.65mm (.340") 2A11 cotters which are now available as 2A11EVO. Correct grade exhau...

Best quality 1" exhaust valve for small bore cylinder heads as fitted standard to 998 Cooper. Higher grade than AEA434. Has a large 8.65mm (.340") collet groove 2A11 cotters which are now available as 2A11EVO.

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...

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...