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Nova4301 · 01-21-2009, 09:24 AM

I was hoping someone could tell me what the bore size is on a GM part# 3995633...it is for a 283/307 engine. If I had to guess it would maybe be 4.100. And, I was curious on what the equivalent Fel-Pro gasket might be (maybe a 7733SH1).

One other question too...what is a good oil additive to run on a low volume oil pump setup. I haven't quite completed my engine yet, but I want to get a good guess on what weight oil and potential oil additive to run.

thanks,

01-21-2009, 09:24 AM	#1
Nova4301 Junior Member Join Date: Sep 2008 Location: Moore, OK Posts: 54 Likes: 0 Liked 0 Times in 0 Posts	Question on head gasket and oil additive I was hoping someone could tell me what the bore size is on a GM part# 3995633...it is for a 283/307 engine. If I had to guess it would maybe be 4.100. And, I was curious on what the equivalent Fel-Pro gasket might be (maybe a 7733SH1). One other question too...what is a good oil additive to run on a low volume oil pump setup. I haven't quite completed my engine yet, but I want to get a good guess on what weight oil and potential oil additive to run. thanks, __________________ Tim Wilson HR/SST 4301