4500 PROSTOCK THROTTLE BODY - 2.25" BORE WITH TPS AND IAC PROVISION

NHRA Approved for 2027 AVAILABLE FOR PRE-ORDER Engineered for Maximum Horsepower & Durability New 2.25" Bore - One piece Billet Aluminum throttle body with TPS and IAC provision. Air Supremacy Design – The Wilson 4500 flows massive air volume with redesigned internals and reduced overall mass for peak high-RPM power. Compatible with Wilson Billet Spacers – Designed to work in tandem for maximum flow and throttle response. Stainless Steel 3-Way Adjustable Linkage – Precision-machined for strength, adjustability, and reliability under extreme conditions. Sealed Roller Bearings – Replaces bushings to eliminate wear and air leaks, ensuring long-term consistent performance. Slim Throttle Shafts – Machined to reduce cross-sectional area and increase net airflow. Aircraft-Grade Blade Fastening – Throttle blades are Loctited and peened for secure, high-RPM retention. Tapered & Radiused Bores – Developed using cutting-edge modeling to optimize airflow per square inch for maximum horsepower. Inward Opening Throttle Blades – Minimizes directional turbulence and improves air distribution at part throttle. Built-In TPS & IAC Provisions – Holley plug-style TPS is pre-installed. IAC port included; block-off plate comes standard. Sensor sold separately. Billet 6061-T6 Aluminum Body – CNC-machined for lightweight strength, repeatable tolerances, and superior heat resistance. (Billet 5 Axis part) Compact Profile – Stands 2.785" tall, allowing for flexible packaging in engine bays.