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Why are you machining the heads, I thought it was the exhaust manifolds warping that caused the studs to break.It depends how involved it is, and if any bolts break during the service. Try get a flat fee repair quoted, so in case bolts break, mechanic won't charge you a lot extra to finish the job. Also ask to make sure that heads will be machined to make sure that they're not warped and you won't get same issue again. Ask if they machine heads in house or send it to machine shop, this is critical to make sure it won't break again. Ask about warranty in case it starts leaking again.
Looks like you need both right and left sides done? I had mine done under powertrain warranty, but my guess that it probably would be less than $1k to get both sides done... Just a wild guess.
Why are you machining the heads, I thought it was the exhaust manifolds warping that caused the studs to break.
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I highly recommend getting rid of the manifolds and going with a header. I lost count but I believe I had both sides done on different days around 93k and 95k. Mine need it again around 30k later and I just changed to headers. Those manifolds are complete garbage they warp and then snap the bolts right off especially in the back.
Is this true about the headers? Anyone with headers installed no longer have broken bolts/exhaust leak issue?
So far my headers are working well. My theory is the material used for the headers is less able to snap off the bolts since it is not cast iron. Cast iron is so strong it pops this bolts/ studs right off. I also went with stage 8 bolts so I don’t have the best science experiment since I changed two things I won’t know exactly why it is better. I also used new factory gaskets.
Smiley did you go LTs? And did you do em yourself or send it out? I have my LTs in the garage, ceramic coated, got remflex gaskets and Stage 8 fasteners but work schedule is eating into my DIY time. I am looking for folks who ran LTs, ideally 2009-2012 and have a good workaround for the oil dipstick tube.
Right now I am a
Where the shorties just a bolt on change or did you have to modify anything other than you're dipstick? Also was there any computer changes required or can you run a completely stock tune with no codes?I paid to have my mechanic do it. I have shorties from BBK. He modified my dipstick tube to make it work.
Where the shorties just a bolt on change or did you have to modify anything other than you're dipstick? Also was there any computer changes required or can you run a completely stock tune with no codes?
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You can run shorties with no tuner, I have read they are good for about 8hp.
I believe they are a straight bolt on.
I do not, Long tubes are the way to go if you are going after big hp gains.
I am sure with a good tune the shorties would make better numbers.
The reason he had to loosen the mount was to get to the bolt that hold the dipstick tube.Just bolt on my mechanic said they were a ***** to put on. Maybe I got a bad batch but it sounded like he had to loosen motor mount to do the install.