For a standard street build, I have always been a fan of Fel-Pro gaskets. Of course with an FE, you might as well get valve cover gaskets too since you will have to pull the valve covers, rockers, and push rods to change that intake. Oh, and that stock cast iron unit your replacing weighs better than 80 lbs (without the carb), so eat a big bowl of corn flakes before you attempt to lift that ****er off. Good Luck.
I agree with my fellow Minnesotan. I put that same intake on my 390. I ran the Fel-pro gaskets, no problems.
Stay away from the Print-O-Leaks on an FE! The best on the market right now are the Fel-Pro steel reinforced models. The print-o-seals will squirm and leak.
Fel-Pro 1247S3 for Medium Riser style heads (most 66-newer heads, except C6AE-R and CJ) Fel-Pro 1246S3 for Low Riser style heads (most 65-older heads, including C6AE-R and CJ)
Yes! Very good point. Toss out the cork end seals, then run a thick bead of RTV on either end. Let the RTV skin over before dropping the manifold in place, and try to drop the manifold straight down. You will also need to replace the valve cover gaslets, and pay close attention to the point where the intake meets the head on the valve cover rail. If any gasket is sticking up here, trim it flush. And if there is a significant 'step' here, double gasketing the valve cover may help.
I have a slightly different process for my FE intakes. Mr Gasket intake gaskets with the cork ends. I've had silicone only push out with sustained high rpm use in my boats. A light skim of Ultra Gray around the coolant ports on the intake side, and elephant snot on the bottoms of the cork ends (let it start to kick so the end doesn't move on you). Run a small bead of Ultra Gray across where the end tabs enter the gaskets just before you lower the intake down. Never had a leaker this way.....
I guess I may have to go through summit because I could not the them through my work and an aftermarket supplier didn't have them either. Are the standard stock replacement felpros worth getting or should I just go with the Edelbrock ones they recommend?
Couple tips for ya. Check your bolt sizes, new manifold may need some different ones. Check the "china wall" for an alignment pin, ya might have to remove it for the new intake. When ya got the manifold set down, put all the bolts in and use the dizzy to align it before ya tighten it up.
Nothing wrong with running the cork seals, but you probably need more crankcase ventilation. Just running the breather on the intake manifold?
Pie pie, I was refering to mr T body blowing the RTV out of the ends. He probably needs more breathers, just a guess. I run a vac-u-pan from both valve covers into the collecters on mine, have never blown the rtv out.
Sounds like you have what I have on my 58 TBird. I am running the felpro gaskets, threw the cork in the trash and used a tube of RightStuff on the ends and a very small amount around the water jackets. This is with a performer intake, pvc on valve cover and breather cap on opposite valve cover/ I don't have a fill tube. That intake has been on the car for at least 4 maybe 5 years and I have had no issues. But I think the rightstuff is key, that stuff is great. I wouldn't worry about building the kind of crankcase pressure in your car, that a boat motor does. Cheers RustyNCA
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