Harmonic Balancer Bolt Question
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Joined: Oct 2004
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From: SoCal
Harmonic Balancer Bolt Question
Hi all, I'm going to install a stock replacement Dayco Powerbond PB1117N balancer on my stock ls6.
It seems most people are using the ARP bolt/washer in lieu of the stock bolt. Is this setup considered better than using the stock bolt with the GM washer (p/n 12603843)? The GM bolt is washer claims to be diamond embedded to prevent the bolt from backing out.
It seems most people are using the ARP bolt/washer in lieu of the stock bolt. Is this setup considered better than using the stock bolt with the GM washer (p/n 12603843)? The GM bolt is washer claims to be diamond embedded to prevent the bolt from backing out.
Team Owner
Joined: Sep 2001
Posts: 23,283
Likes: 906
From: Lake Elsinore, CA
Hi all, I'm going to install a stock replacement Dayco Powerbond PB1117N balancer on my stock ls6.
It seems most people are using the ARP bolt/washer in lieu of the stock bolt. Is this setup considered better than using the stock bolt with the GM washer (p/n 12603843)? The GM bolt is washer claims to be diamond embedded to prevent the bolt from backing out.
It seems most people are using the ARP bolt/washer in lieu of the stock bolt. Is this setup considered better than using the stock bolt with the GM washer (p/n 12603843)? The GM bolt is washer claims to be diamond embedded to prevent the bolt from backing out.
I would go with the reusable ARP bolt and be done with it. Also, pin the balancer while you're in there and never worry about spinning the balancer if you have added, or ever plan to add, power adders (if you do worry, that is).
Le Mans Master
Joined: Nov 2009
Posts: 6,119
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From: Huntington tx
The ARP bolts are better, but the OEM bolt is also just fine as long as you torque to yield them just one time. I also agree with pinning the balancer to crankshaft. I always just replace the bolt each time.
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I would go with the arp bolt... it's reusable and a more straightforward torque process, just torque it and be done... no torquing to 37ft/lbs then trying to stretch it 140 degrees like the stock bolt... I would pin the crank also while you're there, not only will it keep the balancer from spinning on the crank but it will keep the bolt from coming loose
