5.3 exhaust manifold bolts

[Treston5050]

I'm having some exhaust noise on my 05 5.3 and I've had it looked at and was told it was some bad manifold bolts. He told me it would be an upward of $650 and the first time I had him look at it he said it would be $300 so I'm eerie of whether I trust him or not. How much should something like this cost? Thanks

[efritz]

Well, the only way to get them out is to try to get the remaining good ones backed out with the head of the bolt, then weld a nut on top of the ones that break off just below flush with the head. So, if he quoted you around 500 dollars i would say go for it. parts alone will be almost 100. plus all the welding work etc...

[Daryl LBZ]

A set of the ARP exhaust manifold bolts are around $30, and ACDelco gaskets from Rock Auto are around $30.

[anumber1]

Also, if the broken bolt is the rear one, the head probably has to come off to extract it.

 

Yes, the parts are cheap. The labor is the expensive part.

[Daryl LBZ]

There is also a company that makes clamps to put pressure back on the manifold without having to remove the broken bolts. I used them, and they fixed my leaks.

[efritz]

The head almost never has to come off, even for the rear ones. If you clean the top of the remaining bolt really well, get a good MIG welder, and make an "extension of the bolt" out of weld and then weld a nut on the end, then quickly cool the stud with an ice cube to shrink it a bit, then they back right out. I have done many of them with 100% success and no need to pull heads.

[Wesleyskyhigh]

On 2/23/2016 at 7:23 PM, Daryl Z71 said:

There is also a company that makes clamps to put pressure back on the manifold without having to remove the broken bolts. I used them, and they fixed my leaks.

What's the name of the company that makes them clamps

[mikedeezxxx]

What's the name of the company that makes them clamps

Here you go. https://kralautoparts.com/


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[davester]

dorman also makes them, they worked fine for me.