ROLLER TIP 1.5 WITH LARGER SHAFT
C-AHT446EVO

£320.83 exc vat

£385.00 inc vat

In stockIn stock
Roller-tip rocker assembly. 1.5 Hi-Lift for 1275cc big bore engines only.

Craddle type with larger upgraded shaft size to improve rigidity.

Ensure tightening down all posts equally to eliminate stress fractures on shaft.

The ultimate lightweight alloy valve gear giving maximum efficiency cutting down side loading on valve stem, reducing friction and guide wear whilst increasing rigidity especialy on modern performance cams.

The 1.5 hi-lift keeps valves open approximately 20% more at any given point, although opening and closing periods remain the same, and vastly improves volumetric efficiency and, therefore, power output.

The set comes with 8 alloy rockers with centerless ground roller tips, fitted with stronger EN24 AEG167EVO allen key type adjuster screws and C-AHT449 multi-point nuts, competition thick-wall shaft and steel pedestals.

Ensure that the rocker cover has clearance for these rockers FP24 MPI rocker cover or Mini Spares own rocker covers will give clearance on all high lift rockers.

£320.83 exc vat

£385.00 inc vat

In stockIn stock

Recommended usage 1 x C-AHT446EVO to fit one mini.

Alternative products

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.

...

Kit contained products
People also bought products

You should replace the camshaft bearings every time the block goes to the machine shop. These bearings fit all late model 1275cc blocks (the ones without tappet covers on the back) It's almost too simple and thus often overlooked during a rebuild. Ca...

Mini Spares best quality complete gasket and seal kit for engine block and gearbox,for all common engine types and sizes.



Also comes complete with Mini Spares Evolution clutch oil seal 13H2934MS, differential oil seals...

3 YEAR GUARANTEE-UK made.Large impeller higher capacity water pump with top quality die cast body . Mini Spares procured product as the original superb Rover Airtex tooling has been scrapped.

Fitted with a PPS, glass filled plastic impeller...

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.

Upgraded rocker cover gasket made in silicon, cut outs for 11 stud head and ideal when rocker cover is removed on a regular basis.

Rarely you may require longer rocker cover bolts when fitting this so use CAM6823.

Proper timing of the camshaft is very important and while it is easy and nice to do it with a precise adjustable cam sprocket it is also cheap to do it with offset cam keys. 1 or 2 degrees difference in cam timing can make a difference in performance...

Proper timing of the camshaft is very important and while it is easy and nice to do it with a precise adjustable cam sprocket it is also cheap to do it with offset cam keys. 1 or 2 degrees difference in cam timing can make a difference in performance...

Proper timing of the camshaft is very important and while it is easy and nice to do it with a precise adjustable cam sprocket it is also cheap to do it with offset cam keys. 1 or 2 degrees difference in cam timing can make a difference in performance...

3 layer steel head gasket especially suitable for full race engines up to 73.5mm

bore where it has larger bore holes and considered the ultimate head gasket.

Especially recommended for 8 port heads as it has no fire/compression ring...

Price per rod-1275cc larger 6.35mm diameter push rod. Sold per single rod and 8 required per engine.

The larger diameter improves push rod rigidity as much as possible

without having to modify the block/head push rod ports. Thi...

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...

EXHAUST VALVE 1.15 TURBO

.3135 thou (7.96mm) thick, uses CAM6573 collets only.

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...

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.


...

Fit minis with latest A plus water pump pulley 4.75"wide CAM6408 and an alternator. Mainly used on 998cc. This belt is slightly longer than GCB10825 so always keep a spare so you know which size belt fitted your car best. La...

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.

...

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...