FREE SHIPPING on all orders

Weiand 8121 Street Warrior Intake Manifold

Notify me when this product is available:

Intake Manifold

Street Warrior Intake Manifold

Street Warrior Intake Manifold; Power Band Idle-5500 RPM; Low Rise; w/Vortec (L31) Heads; 3.375 in. Front H/Rear 4.50 in. Height; Non-EGR; Satin Finish;

  • Barrel: Four
  • Construction: Cast
  • Cylinder Head Type: fits GM Vortec/Edelbrock E-TEC
  • Emission: Without EGR
  • Engine Make/Size: Chevy Small Block V8
  • Finish: Satin
  • Front Height: 3.375 in.
  • Fuel System Type: Carb
  • Manifold Type: Low Rise
  • Number of Carbs: One
  • Position: Lower
  • Rear Height: 4.500 in.
  • RPM Range: Idle-5500
  • Usage: Street/Strip
  • WARNING CA Proposition 65: No

  • Permanent Mold Casting
  • Precision CNC Machining
  • Idle-5500 RPM Power Band
  • Height Front 3.375 in.; Rear 4.50 in.
  • Port Size 2.00 in. Height x 1.06 in. Width

The Weiand Street Warrior is designed for use on stock or stroker combinations that feature efficient cylinder heads. The latest advances in cam design necessitated the design of a new intake manifold, and the Weiand Street Warrior manifolds fill that void. They are designed with computational fluid dynamics (CFD) software for optimized and consistent flow on every single manifold. ** Designed to use stock fits GM gasket P/N 89017465 or MS90131 or 1255 Fel pro gasket.

The Weiand Company was founded by Phil Weiand as a performance parts warehouse in the 1930s and sold a variety of speed parts. The first Weiand product, the "High Weiand" manifold was manufactured and marketed in 1937. It was the first aluminum intake on the market. In 1949 Weiand introduced a series of "tri-power" and four 2-barrel manifolds and immediately after WWII Weiand debuted a line of aluminum cylinder heads for flathead fits Ford engines. The famous "Drag Star" line of "log" manifolds for Hemi engines was introduced in 1952 and in 1957 Weiand developed complete blower drives for the fits GMC 6-71 supercharger. Other feats first dual plane, "Colt" 180 degree intake 1965, and in 1968 came the "Hi-Ram Manifold" with its patented D-port technology. Next "X-terminator" single plane manifold series in 1972 and Weiands high performance aluminum water pumps the following year. "X-CELerator", a series of performance single plane intakes was developed in 1974. "Team G" series of 360 racing manifolds were introduced in 1978. A year later "Action" series of high performance replacement manifolds debuted. Weiand became the first OE supplier of superchargers to Mercury Performance Marine in 1990, and over the next three years the "Stealth" series of high performance dual plane manifolds was designed, the "Pro-Street" supercharger was certified "emissions legal" by CARB and Weiand received the industry's first "E.O." for an intake manifold. Then the 8-71 supercharger for SBC and BBC in 1996 and the first aluminum LS-1 intake manifold in 2002. In 2005 Weiand began designing manifolds on Computational Fluid Dynamics software to deliver perfectly designed runner lengths for maximum air/fuel delivery on its newest intakes the Warrior line. To make more power you have to get more air into your engine. Look to Weiand as your power source, or partner with products from other Holley companies, to give you even more power!