My divot was on my blocks deck, just outside of the fire ring. We tried to weld it but it wouldn't weld clean. I ground out the bad weld then lapped the block with a proper lapping block, some fine grit sand paper, and plenty of WD-40. It smoothed out nicely, although the divot is still very apparent. The head had a huge hole blown out of it. It was welded and resurfaced. I used copper spray on the new head gasket to help with any imperfections there might be left, but the motor has held up to plenty of abuse and high boost since. It was a lot of work, but its seemed to pay off thus far.

Anyways, find a reputable shop, they should be able to repair the head. I've seen some serious carnage repaired with some welding and good machine work.

 

Thanks man. That's pretty reassuring to hear that. I've already got a new head so the block was my biggest worry.

 

As long as the divot is outside of the fire ring and the head, block, and head gasket are prepared correctly, you should be ok to go. You may be on borrowed time, but my repairs have been good for some time and I'll soon be pushing the motor hard once again in the near future, maybe as soon as this week. It's held up to varying pump gas and ethanol tunes from 26 to 35psi so far for a couple years now, so another 5psi should be good to go... it's the timing I'm worried about ad I need to be careful with that. The divot is far enough from the fire ring and I think it'll be ok. I expect something else to let go before the finger can be pointed at the divot'd block.

 

Were you running e85 or 93?

 

I was on E85.

 

idk if anybody is aware of this, but you can repair it by using coldspray. Without going into the technical details, just think metal fragments sprayed at supersonic speed and at a certain temp, the metal powder is imbedded on the molecular level and becomes the part if that makes sense. Totally machinable and usable. Google RPM rapid city south dakota if you want to know more. They use it to fix aircraft panels that used to be just thrown away. Trust me I used to be the guy that threw the panels away

 

I was on the corn as well. Waiting on injectors to come back from FIC so that we can get to the bottom of this.

 

ahh this truely does suck. I have gotten in the habbit of spending $80 a year plus another $24 for shipping to send my 2150s to FIC for cleaning and flow testing. The ~100 bucks i feel is like an expensive oil change, that takes about 6 buisness days to complete. down time sucks but the couple thousand dollar repair bill i would like to avoid.

I have no idea on the repair figures but I can imagine it will not be cheap. A happy fuel system = a happy driver. For the most part.

 

Looks like it leaned out

 

I was able to swing by my builders shop today and snag a few pics. The block turned out perfect!



Here are pics of the head.

Cyl #1



Cyl #2



Cyl #2 and #3



Last but not least #4

 

block fix looks amazing!

but that #4 cyl head pic doesnt like its going to seal very well.. you going with another cyl head?

 

Cylinder head looks like it's still needs to be machined...

 

Lmao. Hope you guys aren't serious.. That head has a gaping hole in it.

I've already got another head games head going on the motor now.

 

good choice