Do you think this is a crack or a casting mark??
If it is a crack is there any fluid behind it??
It is the driver side of a 2002 LS6 block.
Thanks


You can barely see it in this pic but it is right on the hump below the head bolt

 

 

Can't see it at all. I see red x's.

 

here ya go

 

Looks like a crack to me

 

yes that's a crack.

 

Is there any fluid behind there??

Could it just be welded and be OK??

How long is the head bolt?

 

Looks like someone forgot to clean the headbolt hole? Did you buy it this way?

 

^ I agree

 

Yes it was like that when I bought it??

But couldnt see it due to the motor mount..

Is there fluid in there??
What should I do??

Thanks

 

if it's just in a head bolt hole I wouldn't think it would have fluid behind it. I would just run it that way personally.. just my opinion...

 

take it to a machine shop and see if they can weld it... otherwise, I wouldn't risk it. That head bolt loosening up could be fatal to an otherwise healthy motor.

 

junk, i would never trust a cast piece that had cracked. alum is even worse. you have to remember that the block is always heating and cooling so there is a good chance it will spread. and the welding part, it is very hard to weld cast pieces and if you do find a shop to do it i can almost guarantee that they will say "we will try our best". i would not trust it but that is just me.

 

Welding aluminum cast or not is nothing like welding cast iron. It would be junk if it were cast iron. It's aluminum, I'd get it welded and move along never thinking about it again. It will be as good as new.

Ever seen a set of cast aluminum big block heads welded up so they could be ported bigger, same thing, except way more welding, way more expensive, way more of a risk, thats one huge advantage of aluminum engine parts--they can be sucessfully welded.

 

it could be fixed as long as you find someone who knows there **** when it comes to welding alumium