I figured I would put some info up about the ATI balancers. I searched and searched before I bought one and found very little info here. I know most like the BHJ, but I prefer an ATI.
There are a bunch of options for the ATI. ATI - Super Dampers® for Buick Engines
6.325" OD or 7.074" OD. Dry sump length hub or standard length. The standard length is needed if your running a stock style front cover and oil pump, but a stock pulley will not bolt up to it, nor does it have a crank trigger. It uses a sbc pulley bolt pattern 3 on 3.2" bolt circle. I'm running a stage 2 front cover, so I went with the dry sump length hub with a 7" balancer. It just barely clears the stage 2 cover and I might even have the smallest amount of clearancing below the water pump to make it fit. Since the balancer is so large it takes a custom pointer, but if your at the point of needing a high dollar balancer, you shouldn't rely on a stock timing pointer regardless.
There aren't a lot of options for crank triggers. You might be able to adapt a stock ring to the stock length hub setup. MSD sells a univeral crank trigger kit that takes a fair amount of machine work to adapt. Race Proven motors makes a Chevy v6 kit and you could buy just the trigger wheel, but it's pretty expensive. I made my own, or rather, I had a friend cut me a blank on his cnc machine and I broached it for the MSD magnets. I'll be making a sensor mount that bolts on the front cover where the stock crank trigger sensor would normally go.
There are a bunch of options for the ATI. ATI - Super Dampers® for Buick Engines
6.325" OD or 7.074" OD. Dry sump length hub or standard length. The standard length is needed if your running a stock style front cover and oil pump, but a stock pulley will not bolt up to it, nor does it have a crank trigger. It uses a sbc pulley bolt pattern 3 on 3.2" bolt circle. I'm running a stage 2 front cover, so I went with the dry sump length hub with a 7" balancer. It just barely clears the stage 2 cover and I might even have the smallest amount of clearancing below the water pump to make it fit. Since the balancer is so large it takes a custom pointer, but if your at the point of needing a high dollar balancer, you shouldn't rely on a stock timing pointer regardless.
There aren't a lot of options for crank triggers. You might be able to adapt a stock ring to the stock length hub setup. MSD sells a univeral crank trigger kit that takes a fair amount of machine work to adapt. Race Proven motors makes a Chevy v6 kit and you could buy just the trigger wheel, but it's pretty expensive. I made my own, or rather, I had a friend cut me a blank on his cnc machine and I broached it for the MSD magnets. I'll be making a sensor mount that bolts on the front cover where the stock crank trigger sensor would normally go.
