EGR valve gaskets.

Clone TIE Pilot

Comic Book Super Hero
Aug 14, 2011
Galaxy far far away
For Chevy 305s there are 3 types of EGR gaskets, black, silver, and tan. All 3 are steel core. Anyone know if either type is better than the others? Chevy 305s require two gaskets as their EGR valves use mounting spacers to clear the carb.
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Supporting Member
Jan 2, 2006
Olds used silver. I'm not sure if there's a color "code" of sorts. I've never had any issues with the silver gaskets. So, I have no opinion on the other colors.

Guess the benefit of having a smogger Olds V8 is wider intakes than a smogger SBC. No spacer needed. Save that $2 for 1/2 gallon of gas. :)
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