£39.00 exc vat
£46.80 inc vat
In stock
These can be used for Pre 2012 8 port heads but will need circlip grooves machined in plus shortening where required. See C-AHT364 for guide with groove and C-AHT365 for clip as used in our 5 port alloy heads.
Our York Depot is the main contact for anything concerned with 8 port heads
£39.00 exc vat
£46.80 inc vat
In stockRecommended usage 1 x C-AJJ4037 to fit one mini.
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...
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...
That tell tale puff of blue smoke when you first start is an indicator of worn guides or seals. Valve guides should be replaced with every valve job.
Sold individually, these are the original quality Cooper S guides for use in any head espec...
35.7 x 29.5mm race valves in plasma-nitrided EN214N s/steel with manganese bronze valve guides. Nominal 21.4cc with by pass and heater take off holes open.
This specification of cylinder head, based on used core castings, is modified to curr...
35.7 x 29.5mm race valves in plasma-nitrided EN214N s/steel with manganese bronze valve guides, Nominal 21.4cc with by pass hose and heater take off holes open. This specification of cylinder head, based on used core castings, is modified to current...
35.7 x 31mm race valves in plasma-nitrided EN214N s/steel with manganese bronze valve guides. Nominal 21.4cc with by pass and heater take off holes open.
This specification of cylinder head, based on used core castings, is modified to curre...
35.7 x 29.5mm valves in plasma-nitrided EN214N s/steel with manganese bronze valve guides.Nominal 24-25cc with by pass and heater take off holes open. Supersport head-sold on an exchange basis-old core must be serviceable and no cracks--See [link]...
Approx 23.5cc combustion chambers for use with dished pistons. This specification of cylinder head is the only modified version for the small-bore based engines Mini Spares supply as it is judged to be the only one worth up-grading to. Based on used ...
35.7 x 29.5mm race quality valves in plasma-nitrided EN214N s/steel with manganese bronze valve guides. Nominal 21.4cc with No by pass or heater take off holes open. This specification of cylinder head, based on MPI castings, is modified to current ...
Hi spec all new alloy 5 port gas flowed head. Outright sale to save you the risk of losing £240 on exchange schemes where old heads are traded in and where faults are found, especially by some companies.
Speak to York branch for all modifica...
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...
Similar to C-AHT463 with 35.7mm inlets but larger 31mm exhaust valves as per Cooper S original valve sizes. Using a brand new MPI casting and modified for earlier cars pre 1996 only . 22cc combustion chamber
Some companies call ...
35.7 x 29.5mm valves in plasma-nitrided EN214N s/steel with manganese bronze valve guides. Nominal 21.4cc with by pass and heater take off holes open. This specification of cylinder head, based on brand new twin point injection castings (modified to...
24.5-25.5cc combustion chamber for use with flat top pistons. This specification of cylinder head is the only modified version for the small-bore based engines Mini Spares supply as it is judged to be the only one worth up-grading to. Based on used 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), 0.020" thick (0.5mm).
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-AHT...
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...
Fitting kit comprising of studs, nuts, plain washers, spring washers and a gasket
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.
Unlike polished covers, these powder coated aluminum valve covers don't get that dingy look; simply wipe them and they're clean. (Fins and Mini Spares logo remain cast aluminum finish) And they're made to clear our hi-lift rockers. Available in ...
Set of strong lightweight titanium top caps to suit our valve springs C-AEA526/527 hard for single collet competition valves. Sold as a set of 8.
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
Originally fitted to Minifin rocker covers as standard Rover equipment, it will also fit almost every other rocker cover including our FP26 range and Minispares alloy covers. This improved cap has a large grip and an improved lock system...
Genuine version of the thermostat gasket for all A series. Black one side and red the other they are fitted black side to the head. Green to the thermostat.
We have no evidence as yet that they last longer but do look good.
See [lin...
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...
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...
Unlike polished covers, these black powder coated aluminum valve covers don't get that dingy look; simply wipe them and they're clean. (Fins and Mini Spares logo remain cast aluminum finish) And they're made to clear our hi-lift rockers. Available ...
Originally marketed by minispares in the mid 70s so many companies copied them because of their smart looks and ease of fitment they were improved by offsetting the arms to help tighten plus stop the arm falling out when they were straight. These T b...
Originally marketed by Minispares in the mid 70s so many companies copied them because of their smart looks and ease of fitment. These have been improved by offsetting the arms to help tighten plus stop the arm falling out when they were straight. Ki...
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