last_dollar
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My 4.3 has about 1300 hours an
My 4.3 has about 1300 hours and runs great. However I am concerned about the exhaust manifolds. They have never been replaced and the motor is a 1986. Should I go ahead and replace or is there some indication of them failing before total failure occurs?? This motor has always been used in fresh water and I fill the block with antifreeze when winterizing. How will I know they are going bad?
My 4.3 has about 1300 hours and runs great. However I am concerned about the exhaust manifolds. They have never been replaced and the motor is a 1986. Should I go ahead and replace or is there some indication of them failing before total failure occurs?? This motor has always been used in fresh water and I fill the block with antifreeze when winterizing. How will I know they are going bad?