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Old 03-26-2026, 11:29 PM   #1
Z28000
 
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Drives: 2015 Chevy Z28
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2015 z28 serpentine belt and tensioner issue

My belt kept falling off had shop install new belt and tensioner and just now belt flew off and tensioner snapped in half
I also have upgraded crank pulley ( I forgot brand but good kind )


Car has stock heads that been done and stage 2 cam
552whp

Any help
Would be Greatly appreciated
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Old 03-27-2026, 02:03 AM   #2
ariZona28
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Katech Belt tensioner. I've got one on my LS3 powered C5Z, several track days with plenty of high RPM (6000+) usage. I got mine from the good folks at Tick Performance.

https://katechengines.com/i-30498141...tensioner.html
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Old 03-27-2026, 02:15 PM   #3
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Quote:
Originally Posted by ariZona28 View Post
Katech Belt tensioner. I've got one on my LS3 powered C5Z, several track days with plenty of high RPM (6000+) usage. I got mine from the good folks at Tick Performance.

https://katechengines.com/i-30498141...tensioner.html
Thank you very much
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Old 03-27-2026, 07:33 PM   #4
70T/A400
 
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I will second that Katech belt tensioner. It uses torque to set it. I had serpentine belt issues on a 402 LS2 and it fixed it for good .
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Old 03-30-2026, 02:36 AM   #5
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Quote:
Originally Posted by 70T/A400 View Post
I will second that Katech belt tensioner. It uses torque to set it. I had serpentine belt issues on a 402 LS2 and it fixed it for good .
On order…. Thank you
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Old 04-13-2026, 02:02 PM   #6
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Katech belt T is on there and no issues
Thank you ArizonaZ28
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Old 04-14-2026, 12:32 AM   #7
ariZona28
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Happy to help a fellow Z owner!
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