Short Harmonic Balancer Pulley
Thread Starter
Teching In
Joined: Sep 2025
Posts: 24
Likes: 1
From: Henley-on-Thames, United Kingdom
Short Harmonic Balancer Pulley Hi all,
As I'm only running an alternator and Sanden 7176 A/C pump (no P/S, electric water pump) on my L92 and plan on using ICT billet low mounts for both, I'm looking to switch out for a shorter harmonic balancer pulley to give me more room in front of the engine.
To that end, can anyone help me out with the difference between ACDelco 12560115 and ACDelco 12675715? Other than about $90 😂.
https://www.summitracing.com/parts/ado-12560115/
https://www.summitracing.com/parts/ado-12675715/
Alternatively, if I go aftermarket, I’ve heard to stay away from Dorman but is Powerbond okay? e.g https://www.summitracing.com/parts/pbb-pb1117n/
As I'm only running an alternator and Sanden 7176 A/C pump (no P/S, electric water pump) on my L92 and plan on using ICT billet low mounts for both, I'm looking to switch out for a shorter harmonic balancer pulley to give me more room in front of the engine.
To that end, can anyone help me out with the difference between ACDelco 12560115 and ACDelco 12675715? Other than about $90 😂.
https://www.summitracing.com/parts/ado-12560115/
https://www.summitracing.com/parts/ado-12675715/
Alternatively, if I go aftermarket, I’ve heard to stay away from Dorman but is Powerbond okay? e.g https://www.summitracing.com/parts/pbb-pb1117n/
Thread Starter
Teching In
Joined: Sep 2025
Posts: 24
Likes: 1
From: Henley-on-Thames, United Kingdom
Now I’m even more confused. So there’s 7.52”, 7.53” or 7.65”… but are they all the same length?
I guess if they’re all the same length the 7.65” would be closest diameter to the stock L92 one which I think is 7.71”? Otherwise my accessories are going to be under driven… although maybe that doesn’t even matter?
I guess if they’re all the same length the 7.65” would be closest diameter to the stock L92 one which I think is 7.71”? Otherwise my accessories are going to be under driven… although maybe that doesn’t even matter?
Thread Starter
Teching In
Joined: Sep 2025
Posts: 24
Likes: 1
From: Henley-on-Thames, United Kingdom
Thread Starter
Teching In
Joined: Sep 2025
Posts: 24
Likes: 1
From: Henley-on-Thames, United Kingdom
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