Welding on aluminum heads?

Is it possible to weld inside combustion chambers of aluminum heads and have it actually stay there and not run out under combustion temps? Kinda got into a discussion about that and my entire shop class thinks its not possible

looking for second opinions

yes it's a common fix. there are no problems if you are a good welder

if it is welded correctly it will stay put... will it actually fix the problem?... that depends

There is not much you can't fix on an aluminum head. Welding a chamber is not a problem.............

if you get the head hot enough for the aluminum weld to run out you will have a bigger problem than the weld running out But like what was said if you prepair the head right the weld will be as strong as the head if not stronger

Maddmattmustangs wrote:Is it possible to weld inside combustion chambers of aluminum heads and have it actually stay there and not run out under combustion temps? Kinda got into a discussion about that and my entire shop class thinks its not possible

looking for second opinions

I hope your shop instructor doesn't hold that same opinion, if he does, I'd switch classes!

X2+.

x3

i weld alum for a living
the head is a cast alum unlike steel is not an issue
but on a cast alum pice the weld it self will be stronger than the
cast it was welded on
welding chambers is common
and if done right will not hurt the head
i belive kasse welded the chambers on a emc motor he done

as others have said it will be fine if done right.............

Am looking at a set of heads on my shelf that were bad hurt in a dropped valve deal. Indy Cylinder Head put in seats, guides and a bit of weld to fix my mistake. Yeah, you can weld them and they will live!

shop instructor and i talked after class about it and he said it can be done and he pointed out a procomp head i could use to prove them wrong with.... god that thing looked like crap i dont know if that aluminum can even be worked with. Be fun buz cutting it in half though.

I was talking about welding chambers on a head like a scj to shrink chamber size and completely unshroud the valves for better flow and efficiency. does that make since?

I'm thinking mr. Kaase already did a pretty good job reshaping and engineering that chamber. Not sure I would be messing with that one.

In principal yes if you have a chamber that needs work you could do this.

I would spend my time in other area's where I could get a better bang for my time spent.

jmho.

dkp

Yes, my engine builder (since I don't have the tools) completely re-constucted the chamber and bowls on one cylinder of a big chebbie boat motor. If its done right, it will work.