Anyone know how you fill up on the block where the head bolt hole were.. I use timesert but it fail on me, so I have to fill the hole up to tap it.. It pretty deap; I couldn't figure it out how to fill it.. Maybe some aluminum hardener? I was thinking of JB-weld, but vibration could nock it off would it?

Stupid thought though, but could you heat up a block of pear aluminum for it to melt and poor it into the hole then wait for it to hardened??Would that work?..

If anyone done it or ever heard of something I could do, please help..
Thanks..

 

you would have to have the area around the hole for any "casting" type thing to happen or your block would crack.
and the molten Al would have to be really hot like over 2000* probably to work.

 

yeah I don't even know how you would do that with heat. It's impossible to weld and casting it well I honestly have no idea.

I imagine if it is that bad it would be profitable time and hassle wise to buy a new block.

Sry I'm not more help and for the bad news

edit: had an idea that might work if you are a machinist. You bore out the hole, tap it, spin a solid AL plug on a lathe, thread it into the hole and rebore and tap for the headstud....but that would cost as much as a new block and if you try it I accept no responsability for the outcome

 

I have heard about a number of drag racers drilling out the holes and retapping them for larger studs for extra strength. You might be able to do that?

John

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by I4sillypwr &raquo;</TD></TR><TR><TD CLASS="quote">yeah I don't even know how you would do that with heat. It's impossible to weld and casting it well I honestly have no idea.

I imagine if it is that bad it would be profitable time and hassle wise to buy a new block.

Sry I'm not more help and for the bad news

edit: had an idea that might work if you are a machinist. You bore out the hole, tap it, spin a solid AL plug on a lathe, thread it into the hole and rebore and tap for the headstud....but that would cost as much as a new block and if you try it I accept no responsability for the outcome </TD></TR></TABLE>

why would it be impossible to weld?

 

If I bore out for big head bolt, the block will fit, but the hole size on the head will not fit. By the way. What the biggest side ARP head bolt I could get to do the tap thing? Anyone know?