454 engine rebuild and intake gasket leak

[txaggie]

Howdy all,

I have an 85 454 we just rebuilt for my truck and we put 100 miles on it and the new intake gasket is leaking. It has an edelbrock air gap intake and we used a felpro intake set for it.

Would something else work better? What a pain…

 

[txaggie]

Went with this as a replacement order today:

Fel-Pro 1212 S-3 Fel-Pro Performance Intake Manifold Gasket Sets | Summit Racing

Free Shipping - Fel-Pro Performance Intake Manifold Gasket Sets with qualifying orders of $109. Shop Intake Manifold Gaskets at Summit Racing.

www.summitracing.com

 

[bucket]

Typically with used heads and/or intake, it's best to smear a very thin coating of rtv around the coolant ports, to prevent minor leaks like that.

 

[txaggie]

Typically with used heads and/or intake, it's best to smear a very thin coating of rtv around the coolant ports, to prevent minor leaks like that.

the heads were cleaned and machined, all new gaskets everywhere, and a new edelbrock air gap intake. I’m about to go retorque everything because we haven’t checked that post heat cycles. Wonder if that could be it?