($1,204.20) £1.204.20 exc vat
($1,445.04) £1.445.04 inc vat
In stock
This specification of cylinder head, based on used core castings, is modified to current fast road style to maximise fast road and track day/weekend-warrior performance when used with fast road and road/rally camshaft specifications. That means optimised BHP and torque out-put through port shape and dimensions and valve throat shapes developed on airflow bench and dyno/rolling roads to work with the aforementioned camshaft types, along with suitable compression ratios given modern lead-free fuel specifications. Genuine AE lead-free exhaust seat inserts are fitted. Latest specification manganese-bronze valve guides are used along with the latest specification plasma-nitrided EN214N stainless steel (35.7mm inlet and 29.5mm exhaust) and 220lb (nominal at maximum valve lift) double valve springs to give a cylinder head capable of withstanding a maximum continual peak rpm limit of 8,000rpm and 0.500" actual valve lift. Suitable for auto-testing, hill-climbs and track day use. Combustion chambers are set at an average 21.4cc since most engines these will be used for will already be using an elevated compression ratio (CR) through either smaller capacity dished pistons and/or larger bore capacities, and their efficiency will boost dynamic CR considerably. 9-stud fitting as standard.
This head has the heater take-off port open and a by-pass hose adapter fitted.
A surcharge for non-exchange purchase of £350 (+VAT in EU)) applies. Heads supplied as exchange units must be in good re-workable condition with no cracks, in completely standard form (no modifications), and complete with valves, springs, top caps and collets.
Road/Rally heads with 29.3mm EN21 exhaust and EN52 35.6mm inlet
C-AHT133 25cc for 1380cc engine
C-AHT135 MSE3 spec with steel valves
C-AHT136 MPI only
MSE6 MSE4 spec no heater take off
Some companies call this a stage 3 head but our way of thinking similar to original Special Tuning is as follows-for 1275 head
Stage1 has 33mm inlet 29mm exhaust std valve sizes and gas flowed
Stage2 has 35.6mm x 29mm ex road quality valves and ported to Road Sport spec
Stage3 has 35.7mm x 29mm ex race quality valves to Super Sport/Grand Tourer spec
Stage4 as stage 3 but with either larger inlet or exhasut valves and more modified throat and port work
For real race use ask our technical staff at York or Potters Bar.
($1,204.20) £1.204.20 exc vat
($1,445.04) £1.445.04 inc vat
In stockRecommended usage 1 x MSE3 to fit one mini.
Complete stud, nut and washer kit for the cylinder head ancillaries. Kit contains parts to retain the following:
Inlet/Exhaust manifold to head, studs/nuts/washers
Thermostat housing (no sandwich plate) studs/nuts/washers
H...
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...
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...
Top cap for all A Plus valves with the triple groove collets. Metro from 1984 on and mini 1275 from 1990
Modern high lift, short duration camshafts have posed quite a few problems for the general public in recent years. Widely available performance valve springs were outdated overnight, as it became necessary to reduce spring crush. This, in turn, cause...
Hardened unleaded valve seats for 1.15" 1275 exhaust valves.
Require a recess of 1.2495"(31.737mm) diameter, plus or minus 0.0005" (0.013mm), and 0.250"(6.35m) deep at ambient temperature of 20C.
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...
1.158" (29.4) dia exhaust valve for 12G940 casting.
Our race valves are produced in EN214N stainless steel and require Manganese/Silicon bronze alloy valve guides. They are stellite tipped and have the triple collet groove and c...
This is the longer type cylinder head adaptor tube which allows fitment of the by pass hose without removing the head. The shortened hose GZA2083 slides up the tube and then back down on the water pump tube. Frequently rusted on old head...
By pass hose plug. Frequently rusted on old heads and not even there on newer heads. These are 5/8" x 16tpi "whitworth fine" thread.
Very useful for head changes where by pass hose is not required.
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...
New colour, PB104 bronze guides.Although Silicon bronze valve guides were used for their extremely good wear values, they were very hard and not user friendly when fitting. These valve guides are recommended when using all EN21 4N stainless steel val...
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...
EN24 Nickel Chrome moly steel studs, Competition head stud kit (11 studs, nuts & washers.) 4 long and 7 short.
This special kit was developed to replace the increasingly inconsistent standard items. The studs are manufactured in selected hi-...
Victor Reinz/Mahle small bore head gasket for A-series engines.
Gasket fitment. Writing side up.
Fitting kit comprising of studs, nuts, plain washers, spring washers and a gasket
This kit of head studs is the best available for road and lightly tuned engines. See the C-AHT280 set for highly tuned engines.
The material spec is alloy steel heat treated to 75 tensile tons per square foot minimum and finish...
ARP Head stud kit that compromises of;
4 x Long Head Studs
7 x Short Head Studs (Disregard 2 if you're using a 9 stud application)
11 x Multipoint ARP nuts
11 x Heavy Duty Washers
4 x Rocker post studs <...
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 ...
Complete stud, nut and washer kit for the cylinder head ancillaries. Kit contains parts to retain the following:
Inlet/Exhaust manifold to head, studs/nuts/washers
Thermostat housing (no sandwich plate) studs/nuts/washers
H...
Minispares own stainless steel manifold stud and 6 sided hexagon nut kit.
For mutipopint nut kit see C-STR287
Quantity required one kit per car
Minispares own stainless steel Thermostat housing stud kit for the single tier type thermostat housing.Quantity required one kit per car
This thermostat housing fitting kit, suitable for all single tier thermostat housings. Comes with new studs, nuts, washers and Klinger thermostat housing gasket
Mini cork Rocker cover gasket, suitable for all Minis and A series engines except those with 11 stud heads (see part number GUG5038VC). A must have replacement item when adjusting rocker clearances. see GUGG705009EVO for sil...
Special reinforced gasket for injection cars has metal inserts on exhaust ports plus a metal back on the manifold side which makes surface easier to clean when replacing. Often used on Turbo cars when correct gasket is in short supply.
...
This 5/8unf steel hexagonal head blanking plug was made for the inlet manifolds where the servo union can be fitted, plus blanking off the thermal transmitter hole under the thermostat. Uses 1B3664 washer ----------please note this will ...
Genuine Mini Spares part- 1.5 Hi Lift Roller-tip rocker assembly for 1275cc with gold anodised steel posts.
These extra high-spec alloy Purple rockers were introduced in 1998 to give push rods a better clearance on A Plus heads.
...
Payen,stamped BK450, original standard composite reinforced gasket used on all large bore engines by Rover including Metro and MG Turbo and is an exceptionally good gasket.
Asbestos free with copper type sealing rings. Compressed volume is ...
Genuine Mini Spares Performance Copper/steel head gasket.
Based on the original AF460 pre 2000 design plus the old Payen Special tuning C-AHT188 with superior sealing rings.
With modern day technology and NON asbestos l...
Special thin type clip for fitting the water by pass hose between the water pump and the cylinder head. Most ordinary jubilee clips will not fit the tight area where the hose fits. Also used on C-AHH8537 oil cooler hose.
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