V-Drive 5.5 Flywheel Chevy V8 LS1 Scalloped

The Quarter Master V-Drive 5.5 Flywheel Chevy V8 LS1 Scalloped (model 505177SC) is a purpose-built internal balance flywheel engineered for LS-series powered vehicles running manual transmissions with Quarter Master V-Drive or Pro-Series clutches. This is the choice for builders and enthusiasts who demand reliability in high-performance street and strip applications, where flywheel mass, balance, and clutch compatibility directly affect launch consistency, shift quality, and powertrain longevity.

Machined from steel and internally balanced, this 5.5-inch flywheel uses a button-style friction surface designed to work seamlessly with Quarter Master's V-Drive and Pro-Series clutch packages. The scalloped design reduces rotational mass and heat soak while maintaining the structural rigidity needed for reliable engagement under load. Internal balancing ensures smooth operation across the full RPM range without requiring external balance weights, simplifying installation and reducing vibration on LS1 platforms. The compact 6.55-inch width profile fits within tight engine bay configurations common to modern LS swaps.

Buyers installing this flywheel should confirm their clutch is a genuine Quarter Master V-Drive or Pro-Series unit; incompatibility with other friction materials will result in poor engagement and accelerated wear. Weighing 2.88 lbs, it pairs ideally with LS1 engines in manual-transmission street machines, road course vehicles, and bracket racing builds where consistent bite and predictable modulation matter. Professional installation with proper torque specifications and alignment is recommended to ensure longevity and optimal performance.