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
Specifications:
Motor Vehicles
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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.