350 EFI Intake manifold gasket question

[khe]

There is a raised portion around the ports with a red coating. The gaskets are not labeled as to which side goes toward the head. Is it critical? Should they be installed raised portions toward the manifold or the head? I am thinking raised portion to the manifold so the gaskets sit flat on the heads for the installation of the intake manifold.

The original gaskets were labeled "THIS SIDE DOWN" but they've been on there for 26 years and I can't tell if the raised portion was up or down.

 

[silverbul]

gaskets would be marked up, down, front or back if it made a difference.
In some cases, head gaskets or intake manifold gaskets won’t have any directional indicators on them. They may have Blue Stripe® coating or be a different color. In these cases, it does not matter which direction the gasket is installed. If it were crucial, it would be marked.

For example, the Small Block Chevy and the GM 3.4L V6 head gaskets can be installed with the Blue Stripe coating facing the cylinder heads or the engine block. There are no directional markings on the gaskets. this is per FEL PRO.

 

[khe]

gaskets would be marked up, down, front or back if it made a difference.
In some cases, head gaskets or intake manifold gaskets won’t have any directional indicators on them. They may have Blue Stripe® coating or be a different color. In these cases, it does not matter which direction the gasket is installed. If it were crucial, it would be marked.

For example, the Small Block Chevy and the GM 3.4L V6 head gaskets can be installed with the Blue Stripe coating facing the cylinder heads or the engine block. There are no directional markings on the gaskets. this is per FEL PRO.

Thanks for the reply. I just got off the phone with Felpro technical support and the guy told me to install the gasket with the raised portion toward the intake manifold.

 

[silverbul]

Good call.