Trinity Intake Manifold Black LS3

The Trinity Intake Manifold Black LS3 from Brian Tooley Racing is a precision-engineered aluminum intake solution purpose-built for GM LS-series engine platforms. Developed for serious enthusiasts and performance builders who demand reliable, repeatable air delivery, this manifold addresses a critical bottleneck in naturally aspirated LS engine builds. Whether you're assembling a daily driver upgrade or a track-focused power plant, the Trinity platform delivers the flow characteristics and durability expected from a component engineered by industry veterans.

Featuring a square-port design optimized for multi-port fuel injection, the Trinity manifold accepts a 105 mm throttle body flange and is constructed from high-quality aluminum with a professional black powder-coat finish that resists corrosion and maintains appearance under engine bay heat cycling. The square-port configuration maximizes runner velocity and fuel atomization, critical for consistent combustion and peak volumetric efficiency across the RPM band. At 27.45 lbs, the manifold balances structural rigidity with weight efficiency—a consideration that compounds over extended high-RPM operation where resonance and vibration control directly impact reliability and transient response.

This intake manifold is compatible with all GM LS-series engines (LS1, LS3, LS7, and related variants) and integrates seamlessly into both stock and modified fuel injection systems. Installation requires standard gasket sealing and throttle body calibration; professional tuning is recommended to maximize the flow gains and ensure proper air-fuel mapping. Builders upgrading from restrictive factory manifolds or transitioning to aggressive cam profiles will see meaningful improvements in mid-range torque and peak horsepower. Backed by Brian Tooley Racing's reputation for precision manufacturing, the Trinity Intake Manifold Black LS3 is an investment in proven performance architecture.