Twin 52mm Throttle Body 89-92 SBC 305/350 TPI

The Twin 52mm Throttle Body 89-92 SBC 305/350 TPI is designed specifically for small-block Chevrolet engines equipped with tuned port injection systems from the late 1980s and early 1990s. This dual-bore throttle body is essential for automotive builders looking to enhance performance and drivability in their 305 and 350 cubic-inch engines. Whether you're restoring a classic muscle car or upgrading a street engine, this throttle body meets the intake efficiency requirements of TPI architecture.

Engineered for precision, each of the twin 52-millimeter bores allows for increased air volume while ensuring stable idle quality and responsive part-throttle performance. The dual-bore design minimizes airflow restriction compared to single-point throttle bodies, enabling the engine's computer to manage fuel delivery more accurately across the RPM range. This throttle body is constructed to withstand the demands of high-rpm operation and boost, ensuring durability and reliability.

Ideal for enthusiasts and builders alike, this throttle body is compatible with SBC 305/350 blocks using factory or standalone TPI fuel management systems. It fits 1989–1992 model-year applications, addressing common issues with OEM throttle bodies that can restrict airflow or lead to idle instability. Upgrade your engine's performance with this high-quality throttle body designed for serious automotive applications.