HEAD UNLEADED 35.7x29.3mm 9 STUD HEAD plus surchar...
C-AHT135

£1,064.94 exc vat

£1,277.93 inc vat

In stockIn stock
35.6 x 29.3mm valves in chrome stem with cast iron valve guides.

By pass hose tube and heater outlet open. This specification of cylinder head, based on used core casting, is modified in true Road sport style to maximise on-road performance ...

£1,064.94 exc vat

£1,277.93 inc vat

In stockIn stock

Recommended usage 1 x C-AHT135 to fit one mini.
Cylinder Head - Qty 1

Recommended products

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...

Alternative products

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...

35.6 x 29.3mm valves in chrome stem with cast iron valve guides.

MPI specification of cylinder head, based on used core castings, modified in true Road sport style to maximise on-road performance for those wanting maximised drive-ability w...

Kit products

This is more or less exactly the same in terms of performance as the C-STN20

performance kit but uses 1.5 forged rockers instead of roller tipped alloy

rockers and the cylinder head uses top grade road type valves. A gtrue ain of 20...

Kit contained products

35.6mm inlet valve in EN52 steel.As it is possible, even common, to swap one head for another on 1275 engines, it is quite easy to become confused or worse yet confuse the parts-guy when it is time to order new valves. Be aware that if the head has b...

29.3mm exhaust valve in EN21 steel. As it is possible, even common, to swap one head for another on 1275 engines, it is quite easy to become confused, or worse yet, confuse the parts-guy when it is time to order new valves! Be aware that if the head ...

Top cap for all A Plus valves with the triple groove collets. Metro from 1984 on and mini 1275 from 1990

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...

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...

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...

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...

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...

People also bought products

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...

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 ...

35.6 x 29.3mm valves in chrome stem with cast iron valve guides.

MPI specification of cylinder head, based on used core castings, modified in true Road sport style to maximise on-road performance for those wanting maximised drive-ability w...

Hi-Lift forged rockers on our special rocker shaft with AEG167 adjuster screws for road or race.

Ensure posts are equally tightened down to eliminate stress fractures on shaft.

Using 1.5 ratio high lift rockers has alm...

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-...

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 red 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...

Upgraded rocker cover gasket made in silicon, ideal for race cars etc where the rocker cover is removed on a regular basis. Mini Spares fitted one on their 1380cc engine road car in August 2014 with great results. Rarely you may require longer rocker...

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...

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

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...

HEAD GASKET SET FOR SINGLE POINT INJECTION (SPI) FROM 1992 TO 1996. (Throttle body piece not included but gaskets are available as LZV1011GASKET)

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.

...

A simple way to dress up that engine compartment while at the same time insuring all the proper hardware is in place. A kit includes 2 each of British made chrome sleeve nuts, spacers and special cup washers, Fits all A & B series engines.

F...

Direct replacement rocker shaft. Fits all except full needle roller types. Far superior to the stock item! ENSURE YOU ALWAYS TIGHTEN DOWN ALL POSTS EQUALLY to eliminate stress fractures on shaft.



Our special "heavy duty" shaft has ...

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...

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...

Manifold stud 39mm long for all A series engines up to injection which use LYR10028 which is 6mm longer at 45mm.

Payen stamped AF470, Standard composite reinforced gasket used on all large bore engines by Rover is an exceptionally good gasket. Asbestos free with special black sealing ring for the oil feed. Compressed volume is 4cc. This MINI head gasket has in ...