Showing 41 to 60 of 73

Pre A Plus exhaust valve using 88G459 small cotters. Uses AEA311 springs-25.4mm. For 850/998/1100cc. This valve is to a higher spec than the originals.

35.6mm(1.405") longer inlet valve for the original 8 port head pre 2012 spec only for use with silicon bronze guides these are plasma heat treated to eradicate premature wear from unleaded petrol.

The valves for the current 8 port heads from...

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...

chrome on en214N steel enables fitment of this valve to standard iron guides.

the flow characteristics of this valve are claimed to give better power when used on standard applications. 35.7mm)1.405") for 12G940 large bore casti...

Made in EN214N chrome plated stem for use with standard iron guides these valves claim to give better flow characteristics on standard engines.36.6mm (1.44")

Actually 29.3mm (1.15") these valves are in EN214N steel with chrome plated stems for use in standard iron guides. Easily noticeable by their strange design shape they claim to give better flow characteristics.

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...

1.401" dia x 3.52" long intake valves. Our race valves are produced in EN214N steel, stellite tipped and use the later narrow collet groove and current valve head shapes. As it is possible, even common, to swap one head for another on 1275 engines, i...

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 ...

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...

1.311" (33.3mm) dia x 3.57 long intake valve.


Our race valves are produced in EN214N steel and rquire Manganese/Silicon bronze alloy valve guides. use the later narrow, single collet groove and current valve head shapes.


As ...

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...

30.93mm(1.218") exhaust valve for 8 port pre 2012 specification only

this valve is longer than other A series varieties and plasma heat treated to eradicate wear from unleaded petrol.98.35mm total length. 3.879 "

The valves for the ...

Valve guide with circlip groove using base guides from C-AJJ4037 which are modified- Contact our York branch for spares

This part number C-AHT364 was for the original pre 2010 8 port heads which were the same cut do...

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...

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...

Goes with 12A1987 ex valve and should use AEA311 valve springs. 27mm. Pre A Plus for 850/998 with 88G459 small cotter grooves. Supplied singly, 4 required per engine.

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...

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...

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