
LS Fabricated Intake Manifold for GM LS1, LS2, & LS6
- LS3 Style MAP Sensor Port
- Vacuum Port Fittings
- Fuel Rail Kit
- Intake Seals
- Hardware
JEGS 555-513050 Fabricated Intake Manifold Features:
- Fits GM LS1, LS2, and LS6 cylinder heads with cathedral intake ports
- Accepts 92mm or 102mm throttle bodies
- Includes fuel rail kit, intake seals, hardware, LS3 style map sensor port, and vacuum port fittings
- 2200-6800 rpm range for most street and race applications
- Fabricated from aluminum and finished in black
JEGS 555-513050 Fabricated Intake Manifold Notes:
- Works with LS1 and LS6 Style Injectors
- This intake is designed to work with stock LS heads. The use of some aftermarket cylinder heads may result in port misalignment.
- MAP Sensor Harness Adapter for Converting GM GEN IV LS3 MAP Sensor into Vehicles Equipped with a GM LS1/LS2 V8 Engine, 555-40619, sold separately
- Caution During Installation: The throttle body gasket can get damaged during Installation. Replacement gasket is available. We recommend G31963
JEGS 555-513050 Fabricated Intake Manifold Dimensions:
- Front Height: 7.250 in.
- Rear Height: 7.50 in.
- Front Intake Bolt to Intake Front: 5.25 in.
- Rear Intake Bolt to Intake Rear: -0.50 in.
- Intake Runner: 1.75 in. x 2.15 in. x 4 in. Long
- Intake Flange: 0.958 in. Thick
- Throttle Body Opening: 102 mm
- Fuel Rails use -8 AN ORB Fittings
JEGS 555-513050 Fabricated Intake Manifold Includes:
- (1) LS3 Style MAP sensor port provision at the rear of the manifold. We recommend 555-14538 MAP sensor
- (4) Vacuum Port Fittings for the bottom of the manifold
- (1) 1/8 in.-28 thread x 1/4 in. hose end
- (1) 1/8 in.-28 thread x 5/16 in. hose end
- (1) 1/8 in.-28 thread x 7/16 in. hose end
- (1) 1/4 in.-19 thread x 1/2 in. hose end
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
Fabricated Airflow for Serious LS Power
JEGS fabricated intake manifolds for GM Gen III/IV LS engines that deliver the airflow capacity and durability demanded by modern high-performance builds. Constructed from fabricated aluminum for strength and consistent airflow, these manifolds are engineered to support cathedral or rectangular port LS cylinder heads while accommodating large throttle bodies for increased air volume and throttle response. Designed for street, strip, and forced-induction combinations alike, the optimized runner and plenum design helps maintain strong power across a broad operating range while supporting upgraded fuel systems and engine management components. Whether you're building a naturally aspirated performance engine or a boosted LS swap, JEGS fabricated intake manifolds provide the airflow foundation needed for reliable horsepower and consistent performance.



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