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10-31-2022, 06:15 PM
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#1 |
 Drives: 2016 Chevy Camaro 2SS Join Date: Sep 2020
Location: Flagler beach, Florida
Posts: 214
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Header help bolt broken off and cross threaded
On my car someone previously must’ve taken the oem headers off for some reason and when I was taking them out one of the header bolts broke off almost flush with the head and one of the bolts was put in cross threaded. What do I do?
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10-31-2022, 06:46 PM
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#2 |
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2019 ZL1 1LE MY GOON
Drives: 1980 Z28 Big Red. Join Date: Dec 2018
Location: Stoney Creek
Posts: 2,061
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Drill that hole and use a heli-coil. You can buy heli-coil kits. Just my suggestion.
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10-31-2022, 07:20 PM
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#3 |
 Drives: '86 IROC-Z '18 ZL1 Join Date: Jul 2019
Location: Arizona
Posts: 731
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Imo, id start with a bolt extractor of you think you can get in there fine. If you or u know someone handy with a welder, u can always try to weld another bolt to that 1 and screw it out.
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10-31-2022, 07:40 PM
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#4 |
     
Drives: Wild Cherry LT1 Join Date: Dec 2016
Location: Massachusetts
Posts: 1,924
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If you don’t know what to do, you should bring it someone that does. Someone that actually has the tools, skills and relevant experience. If YOU try to fix it and screw up, it’s just going to become a larger / more expensive mess.
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10-31-2022, 08:47 PM
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#5 | |
Drives: Hyper Blue 2016 2SS 6M Join Date: Sep 2017
Location: North Ga
Posts: 1,786
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Quote:
Not sure which bolts you're working on, but access isn't good on many of them. Pulling the head isn't a bad job, especially on a normally aspirated motor. I'd yank the head off and take it to a machine shop.
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Baby Blue
2016 Hyper Blue 2SS/6m/MRC/NPP/Silver Rally stripes/ZL1 wheels & brakes/GForce DS and axles/ZLE Cradle Bushings/FE4 ARB front & rear/SEMA Grill/Rotofab dry/95mm TB/Magnuson 2300/Full LT4 fuel system/JMS boost-a-pump/E85 Sensor/Ported CID heads from LME/Cammotion PD cam/Thompson Motorsports forged shortblock/catted Kooks 1 7/8 headers /JRE remote tuned |
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10-31-2022, 09:06 PM
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#6 |
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Drives: 2016 Chevy Camaro 2SS Join Date: Sep 2020
Location: Flagler beach, Florida
Posts: 214
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Would I have to dissemble the head?
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10-31-2022, 09:10 PM
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#7 | |
    
Drives: 2017 Camaro 2SS A8 Join Date: Aug 2018
Location: Petersham MA
Posts: 4,741
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Quote:
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2017 Chevy Camaro 2SS A8 Whipple 3.0, Mast Black Label heads, Fore triple in-tank pumps, 112mm TB, LPE +52% injectors, LPE BB HPFP, 15” conversion 1059 WHP/944 WTQ, 9.48@150
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10-31-2022, 09:25 PM
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#8 | |
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Drives: '86 IROC-Z '18 ZL1 Join Date: Jul 2019
Location: Arizona
Posts: 731
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Quote:
No. Ud just have to get a new head gasket and head bolts. |
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10-31-2022, 09:38 PM
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#9 |
Drives: 1970 chevelle Join Date: Aug 2011
Location: Central NH
Posts: 1,427
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weld a nut to it then pull it out. Then retap the hole
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10-31-2022, 10:51 PM
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#10 |
Drives: 2023 ZL1 A10 Join Date: Nov 2021
Location: Az
Posts: 624
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You got a cross threaded and broken sheared bolt, I've had plenty of experience in racing and all the machenical that goes with it , many years ago, these new cars tight quarters around the heads, MO , pull the head or heads. Sorry I've been there not on this new stuff old school stuff . TC
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 2023 ZL1 A10 Shadow Gray Metallic |
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