Can you weld forged steel ?

[MarkIII4Me]

Apparently my dumbass ex-mechanic managed to break one of the ears off the block where the belhousing bolts-up. The question is can I reweld the ear back on and use this block in a 450rwhp application without the bellhousing breaking loose and my clutch flying through the floor?

I've heard mixed responses about welding anything that's forged. Some say it will hold, other say it won't.

Normally I would just get another block, but this one has already been magnafluxed and decked.


Let's hear some opinions.

 

[gixxer750]

You have this exact thread posted at least twice......

The block is not forged, it is cast. And I'm pretty sure welding it would not be a good idea.... It MIGHT hold though. Just find another block and make your ex mechanic pay to have it cleaned, preped, and decked

 

[mattjk]

the block is forged? I think you mean cast iron. Yes, you can weld cast iron if done properly. Properly is getting both pieces heated up before welding and removing enough corner material so you can get enough of the parts melted together.

Or try JB weld... lol

 

[supraboy77]

block damage can be welded in some circumstances. do you have any pictures of the damage?

and as been said, the block is cast not forged. FYI, no blocks are forged.

 

[MarkIII4Me]

my bad. I've been looking into forged pistons all day. Meant cast block. I'll try and get some pics up of the damage.

 

[IJ.]

Takes a very good weldor with access to a big furnace to repair it correctly.

 

[supra90turbo]

looks like your machinist owes you another block.

 

[SublimeSupra]

Looks like mr mechanic owes you,as stated above.

 

[89turbosupra]

block damage can be welded in some circumstances. do you have any pictures of the damage?

and as been said, the block is cast not forged. FYI, no blocks are forged.

Actually they do make forged blocks. Funny cars run a version of the 426 hemi that is forged aluminum.

 

[jtamulis]

Ok 2 things:

1) if you can make him give you another block.
2) yes you can run a 450rwhp car with one bolt missing from the bellhousing.
I've broken one, and ran 454rwhp, but I won't be held responsible if you car
does break where mine didn't, so your mileage may vary, add all the fine print,
etc.

Jeff

 

[MarkIII4Me]

Good stuff.

BTW, I just filed a lawsuit against my former mechanic for $3700 (which is me being extrememly generous) for damages. Of the 2 engines of mine this guy had, I got the head and block of one back with internals. But that's it. No turbo's, no wire harnessses, and I believe he never installed my Walbro fuel pump which he never returned.

Wish me luck.

 

[supraboy77]

Actually they do make forged blocks. Funny cars run a version of the 426 hemi that is forged aluminum.

learn something new everyday.

 

[89supturbo]

Takes a very good weldor with access to a big furnace to repair it correctly.

haha i like that response especilly considering that heating the block in afurnc=ace would be a huge waste of time due to the fact that it would all warp as soon as it cooled and have to be decked again

 

[IJ.]

But the only way to do the job correctly!

You don't need to heat it red hot or anything stupid just a nice even preheat so the cold area of the block isn't leeching the heat away from the weld zone and prestressing the weld.....