[Z06] Wiggle Test Video - Need Feedback
03-19-2018, 12:15 PM
#61
Team Owner
Now heads repaired, seen plenty in spec after 30-60k miles.
03-19-2018, 01:37 PM
#62
Team Owner
OE GM heads...I've seen 2, maybe 3 guys on here say they had their heads tested and were found to be in spec. No measurements presented as such, just "the shop/dealership inspected them and they're in spec". So take it for what its worth...
03-19-2018, 02:55 PM
#65
I just saw this thread. Ignoring the drama. But for general awareness reasons, it is not uncommon to get - what would seem, excessive movement by shoving the valve around like in the video. It is best to remove the spring when testing.
03-19-2018, 06:27 PM
#68
Team Owner
03-19-2018, 06:31 PM
#69
Safety Car
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Yes, at that time (2011) there was a lot of talk that the OEM heads were defective. For that reason I switched to aftermarket (PRC 265s). As things evolved it was finally determined that the heads themselves were OK and it was just Linimar's machining.
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MTPZ06 (03-19-2018)
03-19-2018, 07:08 PM
#70
Safety Car
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2020 C5 of the Year Finalist - Unmodified
I have gone ahead and ordered remanufactured heads and the one in the video and the other side will be measured by a machine shop once they are removed, I will know then. I made the decision to not renew my warranty and use the funds to contribute to the head replacement and reduce the possibility of it happening long term.
03-22-2018, 02:52 PM
#72
Team Owner
Depends on the noise...but yes, in general LS motors are noisy. The "sewing machine" noise is typically used as a reference. The injectors have a tick-tick sound to them as well...so again, it depends on the "noise". I will say, after my AHP heads were done on my '09 w/15K miles...my engine was noticeably quieter.
03-24-2018, 02:24 PM
#73
Depends on the noise...but yes, in general LS motors are noisy. The "sewing machine" noise is typically used as a reference. The injectors have a tick-tick sound to them as well...so again, it depends on the "noise". I will say, after my AHP heads were done on my '09 w/15K miles...my engine was noticeably quieter.
Last edited by Jaybird29; 03-24-2018 at 02:25 PM.
03-30-2018, 03:38 PM
#77
Can anyone tell if these springs/valves look OEM, these are the take off heads on my car, didn't bother with wiggle test etc.. Just ordered AHP heads and had them installed, was getting ready to send them back for core charge but all of them feel real tight (wiggle test) so now I'm curious if I was a lucky one or if the head work was already done and I did it again because I didn't take the time to tear things apart before ordering new ones. TIA, mileage on car was 27K miles, everything else in engine bay was OEM except CAI. If these are good heads I'll sell them after getting a shop to measure play, if not send back for core.
03-30-2018, 05:00 PM
#78
Melting Slicks
Can anyone tell if these springs/valves look OEM, these are the take off heads on my car, didn't bother with wiggle test etc.. Just ordered AHP heads and had them installed, was getting ready to send them back for core charge but all of them feel real tight (wiggle test) so now I'm curious if I was a lucky one or if the head work was already done and I did it again because I didn't take the time to tear things apart before ordering new ones. TIA, mileage on car was 27K miles, everything else in engine bay was OEM except CAI. If these are good heads I'll sell them after getting a shop to measure play, if not send back for core.
03-30-2018, 06:31 PM
#79
Supporting Vendor
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Can anyone tell if these springs/valves look OEM, these are the take off heads on my car, didn't bother with wiggle test etc.. Just ordered AHP heads and had them installed, was getting ready to send them back for core charge but all of them feel real tight (wiggle test) so now I'm curious if I was a lucky one or if the head work was already done and I did it again because I didn't take the time to tear things apart before ordering new ones. TIA, mileage on car was 27K miles, everything else in engine bay was OEM except CAI. If these are good heads I'll sell them after getting a shop to measure play, if not send back for core.
We really would like all core heads returned and not sold to someone else. We structure our core program around customer returning their core heads not keeping them.
If you have any questions please feel free to shoot us an email
hp@americanheritageperformance.com
or give us a call at 310-326-2399
https://www.americanheritageperformance.com/
03-31-2018, 03:23 AM
#80
Le Mans Master
GDamn it, I put this "Jerri" tool on ignore, yet I still can't get away from his child-like understanding of general mechanical principles..
I'm not a religous man, but I'd drop to my knees every night to pray for this guy's motor to blow already so he can stop ruining this forum for the adults..
I'm not a religous man, but I'd drop to my knees every night to pray for this guy's motor to blow already so he can stop ruining this forum for the adults..
Last edited by Dan_the_C5_Man; 03-31-2018 at 03:23 AM.
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2k Cobra (03-31-2018)