L76 TO LS3 conversion with Procharger. G8 platform
L76 TO LS3 conversion with Procharger. G8 platform Hey guys,
So I put together an engine (LS3) after having an oil pressure failure in the L76 that was in my G8. It had a procharger setup as well. I was comparing harmonic balancers and I notice that the procharger pulley seats perfectly in the L76 balancer, but in the LS3 it doesn't seat right. The crank pulley seats in the machined groove of the L76 balancer, but there's no groove in the LS3 for it to seat in. For this, I have 2 questions. If I need to use the L76 balancer, will it work safely and properly with the LS3 engine? Or if I need the LS3 balancer, can I modify or machine it to work with the procharger pulley, or should I order a LS3 specific procharger pulley if they make it?
While I'm doing this conversion, is there anything else I need to worry about or modify?
So I put together an engine (LS3) after having an oil pressure failure in the L76 that was in my G8. It had a procharger setup as well. I was comparing harmonic balancers and I notice that the procharger pulley seats perfectly in the L76 balancer, but in the LS3 it doesn't seat right. The crank pulley seats in the machined groove of the L76 balancer, but there's no groove in the LS3 for it to seat in. For this, I have 2 questions. If I need to use the L76 balancer, will it work safely and properly with the LS3 engine? Or if I need the LS3 balancer, can I modify or machine it to work with the procharger pulley, or should I order a LS3 specific procharger pulley if they make it?
While I'm doing this conversion, is there anything else I need to worry about or modify?
Teching In
Joined: May 2013
Posts: 31
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The LS3 uses the Corvette serpentine belt offset, that is the closest to the engine. The L76 in the G8 is supposed to have the same offset. You should be able to swap the balancers. A new mounting bolt is recommended. Apparently, it's not easy to remove the balancer.
Last edited by daveS; Sep 30, 2016 at 08:44 AM.
Awesome, thank you. The diameter and depth look the same, but the 3 ribs or "bars" inside of it are thinner on the LS3 than the L76, so I didn't know if that would affect balance. Thanks
Teching In
Joined: May 2013
Posts: 31
Likes: 0
