SKU: FST54039B
UPC: 036584325291
MPN: 54039B
The FAST Electronics GM LS Intake Manifold LSXR 92mm Black is a precision fuel-injection intake designed for LS-series engines requiring optimized airflow and reliable throttle body mounting. Built with cathedral-port architecture and a 92mm throttle body flange, this manifold delivers the multi-port flow characteristics essential for consistent fuel distribution and combustion efficiency across a wide RPM range. The plastic construction keeps overall weight down while maintaining structural rigidity—critical for engine bay installations where thermal management and durability matter.
Engineered specifically for LS1, LS2, and LS6 platforms, this 92mm manifold represents the LSXR specification tier, which targets builders seeking reliable street and performance engine configurations. The cathedral-port design maximizes flow efficiency at mid-to-high engine speeds, supporting both naturally aspirated and forced-induction setups within the LS ecosystem. Weighing 17 pounds and measuring 16.5 x 9.85 x 28.45 inches, the manifold integrates cleanly into standard LS engine bays without requiring extensive modification. The black finish resists oxidation and presents a professional appearance under the hood.
This manifold suits LS engine builders, hot rodders, and performance enthusiasts upgrading fuel-delivery systems or rebuilding engines from the ground up. It's particularly relevant for those standardizing on 92mm throttle body platforms or replacing factory manifolds in LS1/LS2/LS6 swaps. Compatibility with the LS-series ecosystem makes this a straightforward bolt-in solution for builders familiar with LS engine architecture. The FAST brand positioning in fuel-system components ensures OEM-quality tolerances and reliable fitment across production and aftermarket LS platforms.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.