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gsa612 · 03-11-2015, 01:01 PM

GM# 3993890 would be the one you would want,.022 thick,small bore(4.125).Or old stock Victor equiv..The problem is they are hard to find,the Mr.G, Rocket, etc are all big bore generic BB. gsa612

03-11-2015, 01:01 PM	#10
gsa612 Senior Member Join Date: Jan 2008 Location: 100th Meridian Posts: 569 Likes: 116 Liked 280 Times in 139 Posts	Re: BB Chevy head gasket GM# 3993890 would be the one you would want,.022 thick,small bore(4.125).Or old stock Victor equiv..The problem is they are hard to find,the Mr.G, Rocket, etc are all big bore generic BB. gsa612 Last edited by gsa612; 03-11-2015 at 01:06 PM.