Holley Single Plane Mid-Rise EFI Intake Manifold GM LS1/LS2/LS6 Cathedral Port
510-300-137BK
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EFI Intakes
Features:
- Designed for performance-minded LS engines with a 2,500-7,000 rpm power band
- Cast aluminum construction with consistent wall thickness throughout and strong mounting flanges
- Constant cross-sectional area produces a broad torque curve
- Accepts a throttle body with a Holley 4150 square bore flange
- The lowest carb flange height possible for improved hood clearance
- Ideal manifold for the centrifugal blower, turbocharger or nitrous power adders
- Matching black anodized billet fuel rails available separately
Intake Manifold Includes:
- Zinc plated hex head cap mounting bolts & washers
- 3/8" NPT hex socket pipe plug (to block the manifold vacuum port if necessary)
- 1/8" NPT hex socket pipe plug (to block the MAP sensor port if necessary)
- (8) Viton O-ring cylinder head mounting flange gaskets Intake Manifold Specs: Intake Manifold Specs:
- RPM Range: 2,500 - 7,000
- Weight: 11.5 lbs
- Port Size: 2.66"H x 0.92"W
- Carb Mounting Flange Height from Lifter Valley Cover Flange: 4.95"
- Carb Flange: Standard Holley 4150, accepts up to 1.75" diameter throttle bores
- Vacuum Port Thread: 3/8" NPT
- MAP Sensor Port Thread: 1/8" NPT
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.
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Specifications:
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:
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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.