Chevy/Pontiac LS Replac. Starter

The Chevy/Pontiac LS Replacement Starter from PowerMASTER is engineered for LS engine swaps and high-performance builds where reliable cold-start capability and compact fitment are critical. Built for enthusiasts upgrading GM LS-series powerplants in street rods, restorations, and modern muscle cars, this starter delivers the torque and speed necessary to turn over larger-displacement engines consistently. Whether you're finalizing a crate engine installation or rebuilding a classic with contemporary power, this replacement unit addresses the starting demands that factory or inadequate aftermarket starters cannot meet.

This PowerMASTER starter incorporates a 5.1:1 gear reduction ratio, which multiplies cranking torque and reduces rotational stress on the armature and brushes during engagement—critical for reliable starts at temperature extremes and under high compression. The 168-tooth flywheel interface ensures positive mesh geometry and smooth power transfer from pinion to crankshaft. The compact, natural aluminum finish housing measures 7.4 × 5.5 × 12.5 inches and weighs 9.35 pounds, enabling it to fit tight engine bays without modification while maintaining thermal management. The heavy-duty construction withstands repeated high-amperage draw cycles inherent in carbureted and fuel-injected LS applications.

This unit is ideal for Chevy LS and Pontiac LS variant engine owners undertaking swaps into second-gen Camaros, Firebirds, C5/C6 Corvettes, and custom frames where OEM starters lack adequate torque delivery or mounting compatibility. Installation requires verification of mounting pad location and flywheel tooth count to confirm the 168-tooth specification matches your application. The compact footprint makes it a drop-in replacement for many bracket configurations, though verification of clearance around headers, oil pans, and frame rails is essential before purchase. Mechanics and builders value PowerMASTER starters for longevity and consistent cranking performance across repeated heat cycles and high-load engine environments.