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Dual Spring
- Install oil galley and freeze plugs
generate lots of torque at low rpm to get those props spinning or big tires kicking up dirt
Bonus video - Callies Plant Tour video clip
Check out our YouTube Engine Machining playlist for a deep dive
Holley Premium Mid-Mount LS Accessory System LS3 Dual SpringHolley's Premium Mid Mount complete accessory system has all accessories pulled in tighter than other accessory drives. At the heart of the system is a "bracketless" design (Patent Pending), where the accessories bolt directly to the water pump for a clean, integrated form. The design offers superb engine visibility to show off your horsepower, not your accessories. Among the many swap friendly features are bottom heater outlets for clearance in tight