GM LS Engine Throttle Body 102mm Black

The GM LS Engine Throttle Body 102mm Black from Racing Power Co-Packaged is a direct-bolt upgrade designed for LS-series engine builds seeking improved airflow and throttle response. Whether you're tuning a street machine, building a crate motor swap, or refining a track car, this 102mm single-blade throttle body replaces restrictive OEM units and unlocks the full breathing potential of your LS platform. The larger bore diameter accommodates higher airflow demands without sacrificing precise idle control or drivability, making it an essential component for both naturally aspirated and forced-induction LS applications.

Machined from aluminum and finished in black anodize, this throttle body features a stock-flange mount pattern for seamless integration with factory intake manifolds and aftermarket manifold systems alike. The 102mm single-blade design provides a larger effective bore than OEM throttle bodies while maintaining precise metering of incoming air, critical for stable idle characteristics and smooth throttle modulation across the RPM range. Weighing just 3.1 lbs, the compact footprint (7 x 4.9 x 8.8 inches) ensures straightforward installation without requiring extensive engine bay modifications, and the black anodized finish resists corrosion while complementing modern engine dress-up aesthetics.

Builders and tuners working with LS engines—from Gen III and Gen IV applications through modern variants—benefit from the GM LS Engine Throttle Body 102mm Black when paired with matching fuel injectors, intake manifolds, and ECU tuning for optimal results. Installation requires basic mechanical skill and compatible fuel rail components; verify your intake manifold bolt pattern and fuel delivery plumbing before ordering. This throttle body complements performance builds ranging from mild street engines to serious competition motors, delivering repeatable gains in peak horsepower and mid-range torque response when properly calibrated within your engine management system.