Designed for Gen IV engines with LS3, L92 and L76 rectangular port cylinder heads. The Performer RPM LS3 manifold is ideal for anybody looking to build a carbureted LS3 or LS2 engine with an operating range between 1,500 - 6,500 rpm. It allows the use of a carburetor on these originally computer-controlled engines, offering maximum power and a broad torque curve. It features a high-rise dual-plane design combined with a plenum that has been optimized for square-bore carburetors. Our advanced casting techniques allowed us to create a lightweight casting that weighs in at 14 lbs. Installation Notes

• Port Exit Dimensions: 1.16" x 2.40"
• Uses LS3/L92/L76 style individual port O-ring seals
• Recommended intake gasket; GM 809-19256623
• Manifold Height: (A) 4.66", (B) 5.56"; Carb pad height: 5.11"
• View Manifold 'A/B' Measurement Guide.
• Comes with throttle cable/transmission kickdown cable bracket compatible with TH350, 200R-4 & TH700R-4 transmissions
• Use MSD ignition timing control module 121-6014
  
  

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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