Our starting point with MGBs is the Standard Leadfree head- we use new bronze valve guides, valves and springs.
The next level of tuning is the "Econotune" head, which produces a broad spread of power from idle to 4800rpm.
Our third level of tuning, the Fast Road head is a fully reworked head based on the 1971-74 larger inlet valve.
Our fourth type of head, the Fast Road Big Valve spec, uses larger inlet valves and is aimed at the owner who will fit a fairly spirited camshaft and possibly larger carburettor/s.
We have developed a head especially for the larger bore engine and those fitting a spirited camshaft, designated the Fast Road Plus spec. It is fitted with 1.72" inlet valves and has extra chamber modifications.
Our Rally heads vary in specification in line with the class regulations .
Race heads also vary to suit the class of racing.
Please use the drop down menu to find more information relating to the various head specifications.
MGB blocks may require cutouts for the exhaust valves, please
click here for more information.

MGB head specs Home Page Cylinder Heads Standard Leadfree Econotune Fast Road Fast Road Big Valve Fast Road Plus Competition Alloy B's Cylinder Head Price List Supercharged B Head

Designer inlet valves for
the Fast Road Plus Head

Please click on the
image to view MGB
flow graph.