320 Intake Manifold

[oconaill]

Need some advice. I have a Bob's supplied copper clad Intake/Exhaust manifold gasket and does any one have any recommendations on whether to use any type of sealing material to reduce the risk of intake leaks when installing the intake and exhaust manifold? TIA

[Bob]

The most important thing to check is the surfaces of the manifold are flat. Many of these manifolds have been overtightened over the years and have been warped. Most should be resurfaced. Then torque them properly! Specs are in the '52 Chassis Manual in the Reference section.

[Jyrki]

I just got those "copper clad" gaskets, too. Bob's Automobilia don't recommend any sealing compounds. However, I'm using tube headers and an aluminum intake, so just for an extra measure, I applied a light coat of blue Hylomar on the intake flanges. I guess Gaskacinch works, too. There aren't too many sealers compatible with gasoline. I recall Buick recommended graphite paste to go with the factory manifolds.

I just hate chasing vacuum leaks, that's why I used a sealer compound.

[39CENT]

I just got those "copper clad" gaskets, too. Bob's Automobilia don't recommend any sealing compounds. However, I'm using tube headers and an aluminum intake, so just for an extra measure, I applied a light coat of blue Hylomar on the intake flanges. I guess Gaskacinch works, too. There aren't too many sealers compatible with gasoline. I recall Buick recommended graphite paste to go with the factory manifolds.

I just hate chasing vacuum leaks, that's why I used a sealer compound.

here is a discussion about exhaust manifold gaskets.

http://forums.aaca.org/f162/straight...ak-249509.html