smitty67 Posted August 8, 2022 Share Posted August 8, 2022 Is there a reason not to grind these points off of a plenum on a 1986 302 EFI? (see images) Link to comment Share on other sites More sharing options...
Gary Lewis Posted August 8, 2022 Share Posted August 8, 2022 I'm not sure what points you are asking about. Can you post a larger pic? Link to comment Share on other sites More sharing options...
Rembrant Posted August 8, 2022 Share Posted August 8, 2022 I'm not sure what points you are asking about. Can you post a larger pic? That's the underside of the upper intake plenum, right where the inner middle bolt goes into the lower intake. Those inner bolts are a real pain to reach and remove sometimes, especially after they're rusted in place. I don't see why you couldn't trim those edges off. They just look like leftovers from the casting process, but maybe they add strength somehow?...not sure. Link to comment Share on other sites More sharing options...
NZCOBRA Posted August 9, 2022 Share Posted August 9, 2022 That's the underside of the upper intake plenum, right where the inner middle bolt goes into the lower intake. Those inner bolts are a real pain to reach and remove sometimes, especially after they're rusted in place. I don't see why you couldn't trim those edges off. They just look like leftovers from the casting process, but maybe they add strength somehow?...not sure. I'm sure some relieving with a die grinder won't hurt a thing . Cheers . Link to comment Share on other sites More sharing options...
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