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Cylinder Head
CYLINDER HEAD - Torque-down and head gasket problems
Created: July 11, 2001
First a brief word on head gaskets. If it is not a genuine Rover or Payen gasket, don’t use it.
CYLINDER HEAD - Unleaded Fuel Use
Created: May 16, 2001
The specter of 'unleaded fuel only' - instigated in UK on January 1st 1999 and seemingly from decades ago across the rest of the world - seems to be forcing more and more folk into frightened, panic orientated action.
MSE6 - POST 1992 unleaded stage 2 (Road Rocket) large-bore head
Created: October 23, 2000
Modified to give maximum performance gain for cost. Combustion chambers, inlet and exhaust ports extensively re-worked. Stone-ground finish in ports promotes ultimate fuel atomisation. Three-angle valve seats in head. Super-quality MG Metro valves modified to increase airflow.
MSE3 - PRE 1992 unleaded Stage 2 (Road Rocket) large-bore head
Created: October 20, 2000
Modified to give maximum performance gain for cost. Combustion chambers, inlet and exhaust ports extensively re-worked. Stone-ground finish in ports promotes ultimate fuel atomisation. Three-angle valve seats in head. Cooper S size valves with current maximum flow profiles and Tuftrided for durability/longevity when used with unleaded fuel (hence 'black' finish).
CYLINDER HEAD - Valves; shapes, materials, and finishes.
Created: October 19, 2000
Many moons ago, the standard performance valve shape was the then-ubiquitous 'penny-on-a-stick' profile. For the very good and simple reason it minimised airflow obstruction by having the least amount of material in the way. Very plausible, and a design that many have stayed with to this day