JEGS Intake Manifold for 1955-1995 Small Block Chevy 262-400, Hi-Rise Single Plane [Satin]
555-513026
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Small Block Chevy
JEGS 555-513026 Hi-Rise Intake Manifold Features:
- Improve engine performance and horsepower with this higher flowing intake manifold compared to a stock cast iron intake
- Designed to fit with popular aftermarket square bore 4150 and 4160 carburetors including Edelbrock, Holley, Quick Fuel, Proform, and more
- Fits GM Chevrolet V8 cylinder heads from 1955 through 1986
- 3000 to 7500 rpm power band for street or mild race applications
- Fabricated from cast aluminum for weight savings and improved performance
- Fits 1955-1995 Small Block Chevy 262, 265, 267, 283, 302, 305, 307, 327, 350 and 400 V8 Engines
- Hi-Rise single-plane design provides optimum performance and fuel distribution
- Open plenum accepts 4150/4160 square bore carburetors
- Designed for racing and offroad use only
- Airgap design keeps hot engine oil away from intake runners resulting in a cooler, denser charge for more performance
- Designed for 23-degree heads with standard port location
- Center Bolt Adapter Bushings for 1957-1986 and 1987-1995 heads
- (8) Intake runner bosses cast in for nitrous or fuel injector ports
- Port exit dimensions: 1.160 in. W x 2 in. H
- Intake gasket port matching is recommended for optimum performance
- Estimated runner length - Shortest: 5.00 in.
- Estimated runner length - Longest: 6.25 in.
- Manifold height: (A) 5.875 in. + (B) 5.875 in. divided by 2 = 5.875 in.
- Click here to determine the carburetor pad height.
- Cast in Bosses designed for nitrous fittings
- Front and Rear water outlet ports for additional cooling
- Provisions for dual distributor hold-downs
- Accepts late-model choke, water neck, AC, alternator, and HEI
- No provision for divorced or heated choke
- Brass Thermostat restrictor plate to reduce coolant flow
- Not Legal For Sale/Use On Pollution Controlled Vehicles
JEGS 555-513026 Hi-Rise Intake Manifold Notes:
- This Manifold will not fit Chevy Bowtie Heads
- Does not fit center bolt valve covers
JEGS Carb Recommendations/Notes | ||||
Carburetors | ||||
570 CFM | 670 CFM | 770 CFM | ||
Up to 300 HP | 300 to 400 HP | 400 to 500 HP | ||
Manual Choke | 510-0-81570 | 510-0-81670 | 510-0-81770 | |
Electric Choke | 510-0-80570 | 510-0-80670 | 510-0-80770 | |
Carburetor Studs | ||||
555-15840 | 1-1/2" Studs | Suggested for carb and gasket only | ||
555-15841 | 2" Studs | Suggested for carb and 1/2" spacer | ||
555-15842 | 2-1/2" Studs | Suggested for carb and 1" spacer | ||
555-15846 | 3-1/2" Studs | Suggested for carb and 2" spacer | ||
Carburetor Base Gaskets | ||||
555-16100 | Open (Square Flange) | |||
555-16105 | 4-Hole (Square Flange) | |||
555-16120 | 4-Hole (Spreadbore) | |||
Intake Manifold Bolts | ||||
555-83200 | Small Block Chevy - Standard |
FAQ
i>JEGS 555-513026 Hi-Rise Intake Manifold Notes:
- This Manifold will not fit Chevy Bowtie Heads
- Does not fit center bolt valve covers
JEGS Carb Recommendations/Notes | ||||
Carburetors | ||||
570 CFM | 670 CFM | 770 CFM | ||
Up to 300 HP | 300 to 400 HP | 400 to 500 HP | ||
Manual Choke | 510-0-81570 | 510-0-81670 | 510-0-81770 | |
Electric Choke | 510-0-80570 | 510-0-80670 | 510-0-80770 | |
Carburetor Studs | ||||
555-15840 | 1-1/2" Studs | Suggested for carb and gasket only | ||
555-15841 | 2" Studs | Suggested for carb and 1/2" spacer | ||
555-15842 | 2-1/2" Studs | Suggested for carb and 1" spacer | ||
555-15846 | 3-1/2" Studs | Suggested for carb and 2" spacer | ||
Carburetor Base Gaskets | ||||
555-16100 | Open (Square Flange) | |||
555-16105 | 4-Hole (Square Flange) | |||
555-16120 | 4-Hole (Spreadbore) | |||
Intake Manifold Bolts | ||||
555-83200 | Small Block Chevy - Standard |
FAQ
How much HP does an upgraded intake manifold add?
- The JEGS 513026 intake manifold enhances horsepower by optimizing airflow and fuel distribution. Actual gains depend on factors like engine configuration, but expect a noticeable performance boost for your small-block Chevy. Dyno-testing is the most accurate way to measure reliable power gains and optimize your engine's performance.
What's better, a single or dual-plane intake manifold?
- The choice between single and dual-plane depends on your application. The JEGS 513026, a high-performance small block Chevy single-plane intake manifold, suits high-revving engines for increased top-end power. It's ideal for racing and aggressive street applications.
What's the difference between high-rise and low-rise intake manifold?
- A high-rise intake, like the JEGS 513026, prioritizes top-end power, making it suitable for racing. Low-rise manifolds focus on mid-range torque for street use. The JEGS 513026 offers a high-rise design, emphasizing performance in the upper RPM range.
What is the purpose of a high-rise intake manifold?
- The JEGS 513026 high-rise intake manifold optimizes airflow at higher RPMs, enhancing top-end power. It's an excellent choice for racing applications where increased performance in the upper RPM range is crucial for success on the track.
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
Specifications:
Will this fit a Vortec engine?
Is there enough material where this manifold can be gasket matched to a FelPro 1206s3 intake gasket and forma a reliable seal?
Will this fit a 1990 model 5.7l TBI engine?
Will this fit world product sr torquer heads
Who manufactures this for Jegs. I am assuming it is rebranded.
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