Product Summary

351W, Dual Plane | High Rise Intake Manifold Type

  • Based on the popular performer RPM-series with unique air gap
  • Engineered to produce incredible top-end horsepower
  • Will converts your system from a single to dual-quad intake
  • Kit includes a Edelbrock RPM or RPM Air-Gap Dual-Quad intake manifold and two 500 cfm Thunder Series AV
  • Intake is made from lightweight aluminum with an exclusive Endurashine finish

Key Specs

MFG. Part #20854

Need To Know

This Product Will Ship Free

Shipping Policies & FAQs

Quick and Easy Returns

Return Policy


A huge hit among street rodders, these Dual-Quad Kits offer the ultimate set-up for anyone who wants the look and the performance of dual-quad carbs. They include an Edelbrock RPM or RPM Air-Gap Dual-Quad intake manifold and two 500 cfm Thunder Series AV.

  • Based on Performer RPM-Series with Unique Air Gap
  • Convert From Single To Dual-Quad Intake
  • Produces Incredible Top-End Horsepower
  • Edelbrock Total Power Package Maximizes Gains
  • Fits 351W


CARB Warning

Follow EPA, CARB, and state regulations for engine changes

Emissions warning: this part is for vehicle engine changes, not direct oem engine replacements. In California, engine changes are legal when done in compliance with California bureau of automotive repairs (bar) engine change policy. For assistance, call bar referee at: (800) 622-7733. And see https://bar.Ca.Gov/consumer/smog_check_program/engine_changes. All customers must comply with federal epa mobile source enforcement memorandum no. 1a (and addendum) and all applicable state regulations when conducting engine changes. Improper installation and/or use of this part in California may subject the installer and/or owner to a $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and laws of all states for use of this engine change part on makes or models of vehicles that render them noncompliant with applicable state and/or federal emission laws with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine


MFG. Part #20854
Intake Manifold TypeDual Plane | High Rise
Carburetor QuantityTwo
Carburetor Barrels4-Barrel
Carburetor Flange Type4-Barrel Square Bore
RPM Range1,500-6,500
Choke TypeElectric
Fuel TypeGasoline
Intake Manifold MaterialAluminum
Intake Manifold FinishEndurashine
Carburetor FinishEndurashine
Air Cleaner TypeNot Included
Secondary TypeAir Valve
Fuel Inlet TypeSingle
Linkage IncludedYes
Throttle Linkage TypeProgressive
Fuel Line IncludedYes
Valve Cover Gaskets IncludedNo
Gasket(s) IncludedYes
Bolts/Studs IncludedYes
Intake Manifold Fasteners IncludedNo
GTIN Code085347208548
Sold in QuantityKit