Mid-Rise Single Plane Intake Manifold for GM LS1/LS2/LS6 with Cathedral Port Heads [Satin]

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JEGSPART NUMBER: 555-513099

Mid-Rise Single Plane Intake Manifold for GM LS1/LS2/LS6 with Cathedral Port Heads [Satin]

Name: Mid-Rise Single Plane Intake Manifold for GM LS1/LS2/LS6 with Cathedral Port Heads [Satin]
Brand: JEGS
SKU: 555-513099
Price: 292.99 USD
Availability: InStock

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Carbureted LS Intake Manifolds

Intake Manifold

GM LS1, LS2 & LS6

Mid-Rise Single Plane

Accepts 4-BBL Carburetor with 4150/4160 Square Bore Mounting Flange

2500-7000 RPM

Intake Ports Designed to fit Cathedral Port Heads

Aluminum

Satin Finish

JEGS 555-513099 GM LS Mid-Rise Single Plane Intake Manifold Includes:

(6) Mounting Bolts: M6-1 x 88.91 UHL Zinc-plated with 10mm hex head
(4) Mounting Bolts: M6-1 x 64.65 UHL Zinc-plated with 10mm hex head
(10) Flat Washers: 6mm Zinc-plated
(1) Pipe Plug: 3/8 in. NPT with 8mm hex/allen head (used to block the manifold vacuum port if necessary)
(8) Viton O-ring cylinder head mounting flange gaskets

JEGS 555-513099 GM LS Mid-Rise Single Plane Intake Manifold Features:

Designed for GM LS1, LS2 & LS3 applications using a 4-BBL carburetor or EFI throttle body
Accepts a 4150/4160 square bore flange with up to a 1.750 in. diameter throttle bore
The mid-rise single-plane design provides optimum performance and fuel distribution for racing applications
Port Dimensions: .919 in. W x 2.700 in. H
Manifold Height:
- Front Height (A): 4.950 in. from front lifter valley cover to carb mounting flange
- Rear Height (B): 4.950 in. from rear lifter valley cover to carb mounting flange
- Carb Pad Height = 4.950 in.
- Click here to determine carburetor pad height.
Intake port matching is recommended for optimum performance
Carburetor Flange Angle: 0 degree
Vacuum Port Thread: 3/8 in. NPT
(8) Intake runner bosses cast in for nitrous or fuel injector ports

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)

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

FAQ

What's better: a single or dual-plane intake manifold?

Choosing between a single or dual-plane LS intake depends on your application. The JEGS 513099 LS single-plane intake offers enhanced top-end power, ideal for performance-oriented setups.

How much HP does an upgraded intake manifold add?

Upgrading to the JEGS 513099 LS single-plane intake can add significant horsepower, optimizing airflow for improved performance. Dyno-tested for reliable power gains.

What size is an LS2 intake manifold?

The LS2 intake manifold like the JEGS 513099 is designed for cathedral port heads, ensuring a perfect fit and maximizing airflow for LS engine performance.

Do manifolds add horsepower?

Yes, performance manifolds like the JEGS 513099 are engineered to enhance airflow, adding horsepower and torque for an optimized LS engine.

Performance Single Plane Carbureted Intakes for LS Racing Engines

GM LS engines have been the number one choice in engine conversions for drag racing applications due to their superior strength and versatile design. JEGS LS Single Plane Intake Manifolds allow you to use a square bore carburetor or throttle body fuel injection replacing the standard computer-controlled multi-port fuel injection setup. These intake manifolds are designed for LS1, LS2 & LS6 racing engines and provide maximum power & performance from 2500-7000 RPM. The OE-style intake port o-ring seals make installation a breeze.

Part TypeIntake Manifold

Product LineJEGS GM LS Single Plane Carbureted Intake Manifolds

BrandJEGS

Package Height6.2

Package Width13.8

Package Length18.9

Weight12.4 PG

Part CategoryPerformance Parts

UsageRacing

Intake MaterialCast Aluminum

Intake Gasket IncludedYes

Intake StyleSingle plane