'00 Convertible M6 SS #1414

[MP81]

There's always gotta be that one major hold up to impede progress.

Like when I was changing the downpipe to manifold gasket on the Cav - should've taken 10 minutes, instead, took all day because one of the bolts snapped off in the manifold, so I had to take the manifold off, drill out the bolt, retap the hole, reinstall the manifold, and [i]then[i] install the new downpipe gasket.

It very well could just be something with steel bolts and aluminum heads - there's a corrosive action there between the two (bare) metals, so that'll do it sometimes.

[Atrus]

There's always gotta be that one major hold up to impede progress.

Like when I was changing the downpipe to manifold gasket on the Cav - should've taken 10 minutes, instead, took all day because one of the bolts snapped off in the manifold, so I had to take the manifold off, drill out the bolt, retap the hole, reinstall the manifold, and [i]then[i] install the new downpipe gasket.

It very well could just be something with steel bolts and aluminum heads - there's a corrosive action there between the two (bare) metals, so that'll do it sometimes.

Yup, galvanic corrosion is a *****.

It's cool - it's been a PITA, but I feel relived that I have a solution in mind that should work. I really didn't want to pull the head off, and my semi-OCD nature really wanted the bolt out to do it "right"....but eff it. If this clamp works, I'll put it on and never think about it again.

[farmington]

Hmmm. broken off stud in head..... need to pull head..... great time to put on those CNC ported heads...... and a cam at the same time...... LOL

[MP81]

Hmmm. broken off stud in head..... need to pull head..... great time to put on those CNC ported heads...... and a cam at the same time...... LOL

And you begin your trip down the rabbit hole.

Which isn't always a bad thing...

[Atrus]

Hmmm. broken off stud in head..... need to pull head..... great time to put on those CNC ported heads...... and a cam at the same time...... LOL

And you begin your trip down the rabbit hole.

Which isn't always a bad thing...

LMAO, believe me, my first thought was "Well, if i have to pull the heads, it's time for some LS6 heads and a cam", but then quickly came back down to reality that $2k in additional upgrades really isn't in the budget this year. Between the intake, PCV system rebuild, headunit, and exhaust, I'm done for 2016.

[Atrus]

Update - so, the rear passenger bolt broke on mine. I have the header on the driver's side installed. The Dorman clamp linked below arrived today.


First off - this is a pretty massive and beefy cast piece. I wasn't expecting it to be this robust. I'm impressed.


So, I threw it on the driver's side front of the head as a test fit, since that'd be a mirror image of the passenger rear. Luckily, it fits like a glove - clears everything including the header flange with little room to spare. I am very pleased with how easily it went on and think it'll do the job well.


Only time will tell - I'll get the passenger header on this week and clamp it down.


https://www.amazon.com/Dorman-917-14.../dp/B00OZVPC2G

[DynoDave]

Wow, that's a beefy piece of steel. Ought to get the job done.

[farmington]

I just saw the problem. It said 853 on the head not 243. your car did this to try to get you to swap the heads. You should always listen to your car.