Alloy 8 Port Head with valves/springs /top caps built up to take .500 thou cam lift with approximately 20.5cc combustion chamber.---Minispares have managed to get 148bhp and 120ft lbs of torque.

This is not a straight bolt on part so see [...

Billet steel CNC machined ultralight race backplate for pre verto clutches, weighs just 0.87kg.

30.5mm(1.2") longer exhaust valve for the 2012 on 8 port head only

for use with special guides these are plasma heat treated to eradicate premature wear from unleaded petrol--For earlier heads see C-AHT376/7 valves.

The valve size h...

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 ...

1" long from bend to take a push on fit 1/2"hose-has 1/2"BSP thread to fit oil cooler and has 90 degree angle bend

Special "S" main bearings nut set (6).7/16"AF thread

On all performance A series engines it is essential to ensure accurate and as near permanent location of the centre main bearing of the crankshaft as possible. Flexing allowed here, especi...

Alternator bracket fitted on the block of earlier Pre A series engine blocks.

For later A plus blocks see CAM4853

Oxygen ambient air sensor with green plastic top . Fitted in top of manifold --ALSO KNOWN AS IAT SENSOR-intake air sensor.

Original part, not cheap imported copy

The ultimate cam follower with oil hole, designed to minimise float and jump normally seen in original cam followers, which ultimately loses power. Precision ground outside diameter with smaller chamfered base to give more surface area for extra hi l...