RPM Air-Gap Intake Manifold 1955-86 SB-Chevy 262-400

Name: RPM Air-Gap Intake Manifold 1955-86 SB-Chevy 262-400
Brand: EDELBROCK
SKU: 350-75013
Price: 529.95 USD
Availability: InStock

^$529⁹⁵

Ships on Oct 05, 2026

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^$310⁹⁶

555-513082

Cool Gap Intake Manifold for 1955-1996 Small Block Chevy, Dual Plane [Black]

^$218⁹⁹

Small Block Chevy

1955-86 Small Block Chevy 262-400
4-bbl Square-Bore Carb Flange (non-EGR)
1500-6500 RPM Range
Black Powder Coated Finish

Designed for 1955-86 262-400 c.i.d. Chevrolet V8's, the award-winning RPM Air-Gap intake manifold incorporates the same race-winning technology that's used on our Victor Series competition intakes. The air-gap design features an open air space that separates the runners from the hot engine oil resulting in a cooler, denser charge for more power. Includes rear water outlets, two distributor clamp locations and nitrous bosses. Accepts all 1976 and later alternator and A/C brackets for the street. The heater outlet boss is angled for proper fit over the valve cover. The temp sensor boss clears all waternecks. For square-bore carburetors only. No provision for exhaust heated chokes and no exhaust crossover. Not for 1987 and later cast iron heads or L98 cylinder heads. Will not fit under stock Corvette hood.
Installation Notes:
Port Exit Dimensions: 1.14" x 1.95"
Manifold Height: (A) 4.20" (B) 5.25"
Carb Pad Height: 4.72" Use Edelbrock Bolt Kit 350-8504.
Recommended JEGS Intake Gasket: 555-210001.

Carb Recommendations
Edelbrock 650 cfm Thunder AVS Carburetor Manual Choke p/n 350-1805 , Electric Choke p/n 350-1806
Edelbrock Performer 750cfm Carburetor Manual Choke p/n 350-1407 , Electric Choke p/n 350-1411
Edelbrock Performer 800cfm Carburetor Manual Choke p/n 350-1412 , Electric Choke p/n 350-1413
Edelbrock Thunder AVS 800cfm Carburetor Manual Choke p/n 350-1812 , Electric Choke p/n 350-1813
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.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

Since founder Vic Edelbrock Sr. began building performance intake manifolds in 1938, Edelbrock has grown into one of the most trusted names in American high-performance parts, from carburetors and intake manifolds to cylinder heads, crate engines, and EFI systems. JEGS has spent decades supplying Edelbrock components to racers, engine builders, and street enthusiasts, backing this extensive lineup with in-house technical support, fast shipping, and a Price Match Guarantee so you can choose proven Edelbrock parts with confidence.

Dual-Plane Intakes with the Powerful Air-Gap Design

Edelbrock has brought race-inspired technology to the street, again! The RPM Air-Gap is a dual-plane intake manifold with a dropped plenum divider that separates the intake runners from the hot engine oil in the lifter valley. This provides a cooler, denser air/fuel charge for more power.

Edelbrock RPM Air-Gap Manifolds elevate street engine performance by using a race-inspired design that keeps your intake runners separated from the hot engine oil. The unique dropped plenum divider delivers a cooler, denser air/fuel mixture for increased power and efficiency—especially under spirited driving scenarios.

Constructed for serious enthusiasts, these manifolds employ a dual-plane layout that promotes strong throttle response and efficient air distribution across cylinders in the 1,500–6,500 RPM range. The air-gap design ensures cooler intake temperatures, translating to crisper performance and minimized heat soak during extended runs.

Here’s how the RPM Air-Gap stands out:

Race-Bred Cooling: The open air space under the plenum keeps the incoming charge cooler, maintaining air density and combating power-robbing heat accumulation—especially noticeable at elevated RPMs.
Proven Performance: Real-world dyno testing shows the Air-Gap manifold delivers slightly higher peak horsepower and torque compared to standard RPM models—packing a subtle but meaningful advantage.
Street-Savvy Engineering: Designed for everyday drivability as well as occasional track duty, it blends the power gains of performance tuning with the refinement needed for daily use.

For those outfitting a edelbrock air gap intake manifold, this product brings advanced thermal management and impressive multi-RPM performance gains. Enthusiasts looking for top-tier rpm air gap sbc upgrades get both competitive edge and street-ready reliability. And when considering an rpm air gap solution, you'll appreciate the blend of engineering finesse and proven performance delivery Edelbrock is known for.

Upgrade your small-block Chevy with a manifold that balances power and precision—where lower temperatures meet higher output.

Part TypeIntake Manifold

Product LineEdelbrock RPM Air-Gap Manifolds

BrandEDELBROCK

Package Height7.8

Package Width15.1

Package Length23.7

Weight19.3 PG

Part CategoryPerformance Parts

Engine Block StyleStock/OEM standard deck

UsageStreet/Hi-Performance

Number Of CarbsOne