Thread: SBC 350 Intake Gaskets Not Sealing

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Hi Everyone,

I have a stock 350SBC that I have recently installed the following parts:
AFR195 heads (AFR-1036)
Comp XE284H hydraulic flat tappet camshaft
Edelbrock Performer RPM Air Gap intake (EDL-7501)
Holley 750cfm carburetor (HLY-0-80508S)

The motor is burning a lot of oil. I’ve narrowed down the issue to the intake gaskets not sealing correctly; they have become oil soaked. I’ve tried two different sets of gaskets, the EDL-7201 0.060 gaskets, and FelPro 1266 0.120 gaskets; both have produced the same results (pictures attached). On the second set of gaskets, I even used sealant around the intake ports (picture also below).

I’m starting to think that it’s possible there is an angle mismatch between the head and the intake; has anyone seen this issue before? All parts are brand new. I compressed some wax between the intake and head on both sides, and they appeared to be quite even on both sides. I’m going to try again tonight using solder in three spots on each side and see what the profile looks like.

Does anyone have any suggestions on how to fix this issue? Should I get a set of MLS gaskets to try and seal it? Any of you seen this issue?

At this point I’m not quite sure what to try next, except checking the angle between the intake and the heads, which confuses me because these parts are all brand new.

Appreciate the help anyone has to offer,

-Alex

Pictures: https://imgur.com/a/Ds10gT6