VALVE SEAT EXHAUST LEAD FREE 850/998cc- INSERT

These are the exhaust valve seats for lead free small bore cylinder heads 850/998/1100. If you require inlets see TAM2152. Fitted from 1988 with introduction of press fit high compression pistons although many earlier heads have used this modification. Recess required is 1.1245"(28.56mm) plus or minus 0.0005"(13mm)and 0.190" (4.83mm)deep at room temp of 20C