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Seat Exhaust Valve 1.15 1275 Leadfree

Seat Exhaust Valve 1.15 1275 Leadfree

Seat Exhaust Valve 1.15 1275 Leadfree
If you are finally going to upgrade your cylinder head for the only gas now available (unleaded) then one of the main changes you will need to make is to have hard valve seats installed for the exhaust valves. The single most universal exhaust valve size found in the 1275cc cylinder head is the 1.15". These hardened seats for 1.15" 1275 exhaust valves have an O.D. of 1.23".
Sold each. Four required per car.
Related Technical Articles:
MSE4 - 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. Cooper S size valves with current maximum flow profiles and Tuftrided for durability/longevity when used with unleaded fuel (hence 'black' finish).
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).
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