3.0 · 3 reviews
SKU: 300-137

Single Plane EFI Intake - GM LS1/LS2/LS6

$491.99
FREE delivery
Description

ABOUT THIS PRODUCT

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

Product Features:
  • 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
  • Kit does not work with factory fuel rails and requires the use of Holley Fuel Rail Kit P/N 534-219
  • Cast aluminum construction - great manifold for centrifugal blower, turbocharged or NOS power adder applications
  • 2500-7000 RPM power band
  • Weight - 11.5 lbs.
  • Height (front) - 5.417" to the lifter valley cover flange at the engine block front flange
  • Height (front) - 5.417" to the lifter valley cover flange at the engine block front flange
  • 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
Specifications
Brand
Holley EFI (770)
SKU
300-137
Product type
Automotive
Guides & Resources
User Guide
Returns Policy
Shipping Information

Free shipping on all orders. Most items ship next business day after your order is placed.

Returns Policy

Returns are accepted when the product is in its original, unopened container. Contact us if you have questions about your order.

View full returns policy

Customer Reviews

3.0

Based on 3 reviews

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T
Ted R. Verified Buyer
02/03/2025

Works perfectly

Setup was simple and it has worked reliably since day one.

P
Pat M. Verified Buyer
11/28/2025

Better than expected

Reliable product and smooth buying experience on this site.

C
Chris W. Verified Buyer
07/05/2025

Highly recommend

Good experience overall from checkout to delivery.

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