Primary Throttle Stop Bracket 2 BBL

The Primary Throttle Stop Bracket 2 BBL from Longacre is an essential tuning component for carburetor-equipped vehicles and performance builds where precise idle and throttle control is non-negotiable. Designed for two-barrel carburetor applications, this bracket serves as a mechanical stop point that prevents the throttle plate from opening beyond a preset position. Whether you're dialing in a street machine, fine-tuning a restoration project, or controlling boost creep in a naturally aspirated engine with aggressive cam timing, a quality throttle stop bracket offers repeatable, reliable engine behavior across varying load conditions.

This Longacre throttle stop bracket uses a solid mechanical design to arrest throttle travel at your chosen setpoint, preventing over-fueling and uncontrolled RPM climb that can result in engine damage or loss of drivability. The bracket mounts directly to the carburetor baseplate and linkage assembly, allowing adjustment of the stop point through a threaded fastener or screw mechanism. Constructed from durable metal stock, the bracket resists thermal cycling and vibrational stress—critical factors in high-heat engine bays where plastic components fail prematurely. At 0.22 lbs with compact dimensions of 6.5 × 1.35 × 8.85 inches, it installs cleanly without interfering with intake manifold, fuel lines, or ancillary components.

This bracket is ideal for carbureted street rods, classic truck builds, and vintage muscle car restorations where factory throttle linkage geometry has been altered or where engine bay real estate is limited. It's equally valuable for bracket racing and tow vehicles where controlled throttle response prevents wheelspin or transmission shock. Installation requires basic hand tools and takes less than 30 minutes on most 2 BBL carburetors; verify carburetor compatibility against your specific casting number before purchase. Mechanics and enthusiasts who demand precision tuning will appreciate Longacre's proven track record in performance suspension and engine management hardware.