Rialto, CA (October 19, 2023) -Speedmaster unveils the Chevy Gen V LT1 Downdraft 8 Stack EFI Intake Manifold System at the 2023 SEMA Show. The fully polished manifold system is one of 30 new products entered into this year's SEMA New Products Award competition.

This system goes beyond a visual nod to classic Weber-designed induction. It pairs vintage downdraft aesthetics with modern EFI functionality - delivering tight air/fuel ratio control and quick throttle response through a single, integrated package designed and engineered by Speedmaster.

Key Product Features

Aesthetics and Function: Combines the classic downdraft look of Weber induction with modern EFI precision.

Versatile Performance: Designed for an LS3 engine block, operating seamlessly from idle to 7,000 RPM.

Precision Engineered: CNC machined from heat-treated 601 cast aluminum for durability and consistent performance.

Optimised Drivability: Features a fully indexable eccentric cable pulley on the bell crank, balancing slow-speed response with full-throttle performance.

The linkage set integrates throttle stops, idle controls, lever arms, and a joiner/balancer - all fine-tuned with a single screw adjustment for precise synchronisation.

What It Enables

For builders seeking the look of classic induction without sacrificing the control of modern EFI, this system delivers a level of tunability that traditional carburetted setups cannot match.

U.S. MSRP: $2,450.00.

See It at SEMA 2023

The Chevy Gen V LT1 Downdraft EFI Intake Manifold System is on display at two Speedmaster locations during the 2023 SEMA Show: the outdoor booth at #22753 in the Silver Lot, and the indoor booth at #81020 in Racing and Performance, Central Hall.

For more information, visit www.speedmaster79.com, email info@speedmaster.com, or call (909) 605-1123. For more about Speedmaster, view this video.

About Speedmaster

Founded in 1979, Speedmaster is a vertically integrated performance company delivering complete, engineered performance systems across engines, drivetrain, and forced induction. With more than 500 employees across three continents and over 25,000 parts designed, engineered, and manufactured in-house, Speedmaster operates as a unified brand built on engineering precision, long-term thinking, and measurable results. Learn more at speedmaster79.com.