HI all,
I am looking at the specs for the motor I had built and the builder listed Stellite J-loy exhaust valve inserts. I am unable to find a product listing in the S.B. International e-catalog for valve inserts for my 1978 200 I6 cylinder head. Although I did find them listed for older cylinder heads. Do they make valve inserts for my head? Are they even needed, since the 1978 heads were designed for unleaded gas and probably have hardened valve seats? I need to know whether I should push to have the builder install the exhaust seats as advertised in his spec sheet, or realistically, are they even available or needed?
I am looking at the specs for the motor I had built and the builder listed Stellite J-loy exhaust valve inserts. I am unable to find a product listing in the S.B. International e-catalog for valve inserts for my 1978 200 I6 cylinder head. Although I did find them listed for older cylinder heads. Do they make valve inserts for my head? Are they even needed, since the 1978 heads were designed for unleaded gas and probably have hardened valve seats? I need to know whether I should push to have the builder install the exhaust seats as advertised in his spec sheet, or realistically, are they even available or needed?