JEGS
Mid-Rise Single Plane Intake Manifold for GM LS1/LS2/LS6 with Cathedral Port Heads [Satin]
555-513099
Product Q&A
View Now
![Mid-Rise Single Plane Intake Manifold for GM LS1/LS2/LS6 with Cathedral Port Heads [Satin]](http://www.jegs.com/images/photos/500/555/555-513099.jpg "Mid-Rise Single Plane Intake Manifold for GM LS1/LS2/LS6 with Cathedral Port Heads [Satin]")
Items You Need
| Ratings |
|---|
| Price |
| Brand |
-
Details
Carbureted LS Intake Manifolds
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.
Specifications:
Part TypeBasic Operating RPM Range2,500-7,000Carburetor QuantityOne 4-BBLCylinder Head TypeCathedral PortEmissionWithout EGREngine Make/SizeGM LSIntake FinishSatinIntake Gasket IncludedYesIntake Manifold Height4.95 in (125.73 mm)Intake MaterialCast aluminumIntake StyleSingle planeManifold TypeMid RiseMounting Hardware IncludedYesPackage Depth6.20Package Height18.90Package Width13.80Part CategoryPerformance PartsPart FitmentSemi UniversalPort Height2.700 in. (68.6 mm)Port Width.919 in. (23.34 mm)RPM Range2500-7000Shipping Weight12.40UsageRacing - Overview
-
Vehicle Fitment
-
Reviews513099 is rated out of 5 by 1.
-
Q & A
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools:
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.