Intake manifold repair - chips!

[1968rt]

Picked up an old CH4B. It has chips around the intake ports. I dont want to machine them out it would take too much off the face. My options are: 1-Weld them in, I have a spool gun. 2- use muggy weld to fill them in. 3- JB weld them. A gasket match and then a light mill afterwards should clean them up.

 

[#41]

4. Nothing. Your gasket goo will take care of it.

 

[67belvedere/225]

I love the to part epoxy it comes in a tube and you cut off a piece and mix it together. like jb weld steel stick. where gloves and mix it together and then push it in holes and use a blade to make it flush
I repaired dodge neon corroded heads with it . when I was flipping cars. or leave it if you want
like #41 said

 

[Moparnocar]

Picked up an old CH4B. It has chips around the intake ports. I dont want to machine them out it would take too much off the face. My options are: 1-Weld them in, I have a spool gun. 2- use muggy weld to fill them in. 3- JB weld them. A gasket match and then a light mill afterwards should clean them up.

View attachment 1164742 View attachment 1164743 View attachment 1164744 View attachment 1164745

Jb weld, if even needed, permatex hardening would work too

 

[67belvedere/225]

the liquid 2 part epoxy is also good , probably easier to use for small holes

 

[Mike67]

Just curious have you held up your gaskets to them? Is there enough material to blend it out to match the gaskets?

 

[1968rt]

I haven't placed a gasket against it yet, but you can see the impression the old valley pan left. There is some room to clean up the edges.

 

[33 IMP]

Port match it first then worry about anything left. And I agree, gasket goo will handle anything left.

 

[BSB67]

Put 0.015" thick paper gaskets on both sides of the pan. Done.

This will also solve your other problem: the leak because the head/intake angles are different.

 

[Canadian1968]

I vote for gasket match/ radius the edges slightly if there is anything left just leave it and go !

 

[JackpotJim]

Don't use any 2 part epoxy without knowing it's heat tolerance, Most 2 part liquid base epoxies basically become goo above 400 degrees. The 2 part epoxy putties (in the tube) don't respond well to gas or oil, your high temp gasket sealer will take care of pits in the heads or manifold's machined surfaces. If you're dead set of fixing the holes Moroso and Edelbrock make epoxies made to be used to mend manifolds after porting.

 

[Bee1971]

I like these

http://www.hughesengines.com/Index/...QmlnIEJsb2NrICAoUmFpc2VkIERlY2sp&partid=34717

 

[dvw]

I've fixed pits like that in cylinder head deck surfaces, water pumps, and intake manifolds. Even filled O-ring grooves in heads. All using JB weld. Never had an issue. Current 900hp 15-1 compression race motor has the deck pits filled with JB.
Doug