Edelbrock Intake Issue

Take your housing, a piece of sandpaper on a truly flat surface and “lightly” sand it flat in a random orbital motion ensuring you keep centralized downward pressure. Some sandpaper (adhesive backed preferably) on a hardwood block of wood and scuff up the intakes thermostat surface until you see a uniform finish.

I don’t use FelPro blue colored gaskets, use the thicker gray style. Use a skim coat of ultra black on both sides of the gasket, bolt it down and let it fully cure before refilling with liquids. I Never ever have any leaks, weeping etc no matter what intake, style of thermostat used. Never Ever.

Someone’s got leaks it’s because any number of reasons: the surfaces aren’t truly flat, uniform, clean, aren’t tightening the bolts evenly, to the right tightness, the bolts are bottoming out, not letting the sealant cure etc

If someone is installing an out of the box thermostat housing on an ootb intake without verifying flat surfaces, bolt length, proper sealant application (I’ve actually installed with no sealant, simply a dry gasket in some cases) and cure time they are not doing things right.

If one thinks they shouldn’t have to do additional “fixes” on these specific new parts well then just keep installing, filling, leaking, draining, removing, replacing until you find the “ones” Check, fix, install, done. The first time.