Steve G Posted September 17, 2022 Share Posted September 17, 2022 I’m wondering if anyone has come across this... my 402 with very low mileage and virtually untouched has bronze intake valve guides. Every part inside and out is stock GM including the metal shim style head gaskets. Motor does not appear at all to have ever been worked on but has bronze guides... any thoughts? thank you. Quote Link to comment Share on other sites More sharing options...
Scott S. Posted September 17, 2022 Share Posted September 17, 2022 Bronze guides are a factory part..... Better heat dispersion and being being the smallest/easiest part to replace, they were meant to be the part that wore out first. (Softer metal theory) 1 Quote Link to comment Share on other sites More sharing options...
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