Flexplate 153T SBC Late No Balance LW

The Flexplate 153T SBC Late No Balance LW from Quarter Master is a purpose-built flexplate engineered for small-block Chevy engines running internally balanced rotating assemblies. As a serious engine builder or performance mechanic, you understand that the stock flexplate is often a weak link in high-RPM applications—heavier than necessary and prone to failure under aggressive acceleration. This ultra-lightweight, one-piece design eliminates those constraints while maintaining the precision fit required for late-model SBC torque converters.

Constructed from high-strength steel, this 153-tooth flexplate features an internal balance design that works seamlessly with internally balanced crankshafts—no external weights, no compromise. The one-piece seal configuration integrates the transmission seal surface directly into the casting, eliminating leak paths common in two-piece designs. At just 3.03 pounds, the weight savings translate directly to reduced rotating mass, lowering parasitic losses and improving throttle response and acceleration feel. The 153-tooth count matches late-model Chevy small-block engine blocks, ensuring proper engagement with your torque converter while allowing higher sustained RPMs without slippage.

This flexplate is ideal for street and strip builders converting carbureted or fuel-injected small-block Chevys to automatic transmission configurations, or upgrading existing builds with a lighter, more durable component. It's equally valuable for restorations where originality meets performance—retaining period-correct aesthetics while improving reliability. Installation requires confirmation that your crankshaft is internally balanced and your engine is a late-model SBC; Quarter Master's engineering ensures drop-in fitment when these conditions are met. Pair this with a quality torque converter and you've addressed one of the most overlooked upgrade points in any Chevy automatic combo.