MED 5-port

MED 5-port

MED ROAD COMPETITION

£1,350.00 £1,125.00 EXC VAT

Our most popular cylinder head, the MED Road Competition features 36mm x 30mm valves and is expertly ported to suit fast road and light competition cars with SU carburettors or SPi/MPi Minis. It is supplied with unleaded exhaust valve seat inserts.


These are now only available on an outright basis, based on a brand new MPi Mini casting that we can adapt to suit earlier engines.

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Description

Unlock the performance potential of your 1275cc A-Series engine with the MED Road Competition cylinder head. We have modified thousands of cylinder heads to this specification over many decades, regularly updating the design for the highest quality product. 

The Road Competition has been developed specifically for use with single or twin SU carburettors, but can also be machined to suit an SPi or MPi Mini. 

Enlarged three-angle valves are manufactured from 21NS stainless steel forgings, plasma nitrided for extra strength and wear characteristics, and installed in our own high quality bronze valve guides. The combustion chambers are expertly re-profiled and the capacity optimised to gain the correct compression ratio for your engine.

Final assembly is completed with MED road-spec double valve springs, triple groove collets and valve retainers. The head can be supplied to suit 9-stud or 11-stud head fixings and painted in a variety of colours, ready to fit.


Machined in-house to a very high specification as follows;

  • Ported to our own unique profile.
  • Specially-developed valve seat and combustion chamber profiles.
  • MED bronze valve guides with tapered inlets.
  • Stainless 21ns race valves with wasted stems.
  • 36mm inlet valves, 30mm exhaust valves - triple groove.
  • Refaced top and bottom faces.
  • Spring seat platforms machined to gain correct spring tension.
  • Fitted with MED road double valve springs.

Options to be confirmed;

  • With or without bypass hose take-off.
  • Heater tap open or blanked.
  • 9-stud or 11-stud.
  • Combustion volume from 18cc up to 27cc.
  • Finished in red, blue, black, grey or green.

Please note, these cylinder heads are machined to order - once you have purchased this product a member of our sales team will contact you to finalise the specification and advise delivery. 

We aim to deliver within 20 working days from the initial order, however during the race season this can vary with demand. Please contact us for the most accurate lead times. 

These are now only available on an outright basis, based on a brand new MPi Mini casting that can be adapted to suit earlier engines. 

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SPECIALIST

Leading A-Series engine specialist since 1981

HIGH QUALITY

High quality components with a 4.8 star average rating

EXPERTS

Expert technical knowledge of the A-Series engine

DELIVERY

Express daily shipping services to customers worldwide

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SPECIALIST

Leading A-Series engine specialist since 1981

HIGH QUALITY

High quality components with a 4.8 star average rating

EXPERTS

Expert technical knowledge of the A-Series engine

DELIVERY

Express daily shipping services to customers worldwide

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