with an impact? wtf that is aluminum!!

if i seen that "shop" do that to my engine, they would never touch another vehicle I own... ever

 

Ok but be CAREFUL what bolts you put in. You can't just put in any bolt thats the same size.
Keep in mind. We have mostly aluminum everything under the hood.

You want to use ALUMINUM bolts! If you put in a stainless steel bolt, it will cause the aluminum that it comes incontact with to corrorde rather rapidly. Mismatching metals can lead to sevear and rapid corrosion.

http://en.wikipedia.org/wiki/Galvanic_corrosion

 

Aluminum bolts? I don't think I've ever even heard of that... The bolts that GM uses are all spin-coated steel.

 

wow your right they are steel. I Just put my magnet by them and it stuck. Magnets to the best of my research only stick to 3 things; Cobalt (The metal not our cars) , Nickel, and Iron. Steel, being an alloy of mostly carbon and Iron, would stick to a magnet because of the high Iron content. They looked Aluminum to me. The top two heads look kinda stripped out though. Must have been whomever put on my 2.85" pully. I baught the car used and modded.
But this brings up the question aout how do they keep that from corroding, with the diffrent kinds of metals in contact. A little water works it way in + Electrical ground currents from the spark plugs, ignition coils, generators, + 2 difrent kinds of metals in contact = Corrosion.

 

Combination of things. No voltage gradient across the materials (everything is ground), the coatings act as insulators, and I'm sure there are galvanic sinks somewhere on our cars that protect the more important fasteners from corroding.

Also, you forgot frogs as being magnetic
http://www.youtube.com/watch?v=A1vyB-O5i6E

Oh, and grasshoppers!
http://www.youtube.com/watch?v=iVmpOH1jzO4&NR=1

And Strawberries - the most delicious of magnetic objects.
http://www.youtube.com/watch?v=cEC9G8JUKW8&NR=1

OK, I'll stop there...

 

Titanium bolts are where its at.. .. seriously though.. they're pretty neat.. so light that when you pick them up you think you missed grabbing them..

 

Never come across a Titanium bolt. They used in Aerospace, I assume?

Not that I'd have any reason to come across them in my line of work...

Sorry for hijacking your thread, Zach. Hopefully you've already got your question answered!

 

I honestly have no idea how we ended up with some.. but.. they're holding my heat exchanger on now..LOL

 

used em all the time on Motocross race bikes to save weight

 

You can get Titanium bolts at any auto cross race shop, ext belliangs, peagaus. ext ext... i have them both local to me with in 15 mins drive. If you really want to go that extra pointless mile in our cobalts, Un less you have 1,000 of dollars to **** away on replacing every lil bolt on the car to save you as much as maybe 5lbs then maybe ok lol. their very nice but, I'll pass on paying a butt load per bolt or more. They weigh pratically nothing thou.