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The Edelbrock Performer RPM LS3 intake manifold (#71197) is designed for use with Gen IV LS engines equipped with LS3, L92 and L76 rectangular port cylinder heads. It is ideal for anybody looking to build a carbureted LS2 or LS3 engine in the 1,500 – 6,500 rpm operating range. It features a high-rise dual-plane design combined with a plenum that has been optimized for square-bore carburetors maximum power and a broad torque curve.
Edelbrock’s advanced casting techniques allowed for a lightweight casting that weighs 14 lbs.
The Performer RPM LS3 includes a provision for mounting an MSD Ignition Timing Control Module, along with passages for routing the coil wire harness, for a clean look. It also ships with a throttle and trans bracket that works with 700R-4, 200-4R and Turbo 350 transmissions. The intake manifold flange has been machined for use with GM LS3, L92 and L76 style individual port o-ring gaskets.
In testing, the Edelbrock Performer RPM LS3 produced 519 HP and 457 ft-lbs. of torque on a LS2 short block equipped with LS3 cylinder heads. It out-performed the competition by 12 HP and 16 ft-lbs. of torque.
Carb Recommendations: Edelbrock Thunder Series AVS or Performer Series (600-800 cfm) Carburetor.
Installation Note: Uses LS3/ L92/L76 style individual port o-ring seals GM # 19256623. Manifold height: A-4.66", B-5.56"; Carb pad height: 5.11"; CA-3°. Carb height (CH) for this manifold is measured from the valley cover flange to the carb pad. Port exit dimensions: 1.16" x 2.40".
Edelbrock part # 7524 Dual-Quad HEMI intake manifold in Satin finish is intended for use with Mopar Gen II (1964-71) 426-572 HEMI engines operating in the 2,500 to 6,500+ range. This 7524 new intake manifold is a single-plane Air-Gap® design with a dual square-bore 4150 style carburetor pad. Carburetor spacing and height are the same as Mopar Performance dual-quad # P5153737, making it a direct bolt-on to all vehicles with a shaker hood. They also retain the same carburetor linkage location from the factory. The Dual-Quad HEMI is compatible with factory style cylinder heads, but optimized for use with Edelbrock Victor Jr. HEMI cylinder heads.
Requires Edelbrock Coil Bracket #8079 for use with OE style coils.
Carb Recommendations: Edelbrock Thunder Series AVS or Performer Series (600-800 cfm) Carburetor.
Edelbrock Installation Note: Recommended intake gasket: Edelbrock #7278. Manifold height: A-4.68", B-5.51"; Carb pad height: 5.10". Port exit dimensions: 1.80" x 1.98".
Also available for EFI, use part # 75245. Edelbrock Throttle Body Recommendation: Edelbrock #38783 with progressive linkage #7094. Edelbrock Fuel Rail Recommendation: Use Edelbrock fuel rail kit #3660 with Edelbrock injectors #3686.
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