Granatelli Motor Sports GMTBLS112SPC LS 112mm Billet Throttle Body Adapter Plate

The Granatelli Motor Sports GMTBLS112SPC is a precision-machined billet adapter plate designed to allow the installation of an oversized 112mm LS throttle body onto stock LS bolt pattern intake manifolds — no porting or manifold modification required.

This adapter plate bridges the gap between the larger 112mm throttle body flange and the factory LS intake manifold bolt pattern, making it an ideal solution for performance builds that demand maximum airflow without the expense or downtime of custom manifold work. The kit includes all necessary hardware for a complete installation.

Key Features:

• Allows a 112mm throttle body to bolt directly to stock LS intake manifold bolt patterns
• Eliminates the need for manifold porting or custom fabrication
• CNC-machined from billet aluminum for precision fit and durability
• Includes all required mounting hardware
• Compatible with LS series engines running stock bolt pattern manifolds
• Bolt-on installation for straightforward fitment

Granatelli Motor Sports is a trusted name in American performance motorsports, and this billet adapter plate reflects their commitment to precision engineering and real-world performance gains. Whether you're building a street/strip machine or a dedicated track car, the GMTBLS112SPC is a clean, professional solution for upgrading throttle body flow on your LS platform.