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Holley

Holley Single Plane EFI Intake-GM LS1/LS2/LS6 - Black

Holley Single Plane EFI Intake-GM LS1/LS2/LS6 - Black

300-137BK

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Holley Single Plane EFI Intake-GM LS1/LS2/LS6 - Black

Single Plane EFI LS Intake Manifold. All GM LS Gen III or IV engines equipped with LS1/LS2/LS6 style cathedral port cylinder heads.

Overview
Single Plane EFI LS Intake Manifold. All GM LS Gen III or IV engines equipped with LS1/LS2/LS6 style cathedral port cylinder heads.

Includes mounting bolts & washers. Also includes O-ring cylinder head mounting flange gaskets for an OEM style seal. Kit does not work with factory fuel rails and requires the use of Holley Fuel Rail Kit P/N 534-219. NOTE: The EFI versions of the LS HI-Ram intake manifold and fuel rail are designed to accept Bosch Style EV-1 or Magneti Marelli Pico fuel injectors. OE LS fuel injectors may not fit properly in the Hi-Ram EFI intake manifold fuel rail assembly. There is a kit available separately for the LS7 Hi-Ram EFI to allow the use of stock LS7 fuel injectors, P/N 300-230 (see below in the service parts section).

Features:
  • Black ceramic coating provides an aggressive look to your engine compartment
  • 2500-7000 RPM power band
  • 4150 Square bore flange
  • Optimized runner layout and constant cross sectional area - broad torque curve, best vehicle performance from 2500-7000 RPM
  • Minimum carb flange height - fit in vehicles with minimum hood modifications
  • Cast aluminum construction - great manifold for centrifugal blower, turbocharged or NOS power adder applications
  • Efficient casting design - lightweight, consistent wall thicknesses, improved casting quality
  • Weight - 11.5 lbs.
  • Height (front) - 5.417" to the lifter valley cover flange at the engine block front flange
  • Port size - 2.50" height x 1.15" wide
  • Includes Viton???? O-ring intake to cylinder head gaskets - Viton???? is a registered trademark of DuPont Performance Elastomers
  • Kit does not work with factory fuel rails and requires the use of Holley Fuel Rail Kit P/N 534-219


Details:
  • Color: Black
  • Construction: Cast
  • Engine: GM LS1/LS2/LS6
  • Finish: Black
  • Front Height: 5.417 inch
  • Fuel System Type: EFI
  • Manifold Type: Single Plane
  • Rear Height: 5.417 inch
  • Recommended Use: Forced Induction
  • RPM Power Band: 2500-7000 RPM
  • Warranty: Limited 90 Day


Links
Instruction Sheet
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