SKU: 57540185359

Holley Single Plane EFI Intake-GM LS1/LS2/LS6 - Black - 300-137BK

Sale price$263.23 Regular price$292.48
Save 10%

Pay in installments of $73.12 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 4 - Aug 9

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Holley Single Plane EFI Intake-GM LS1/LS2/LS6 - Black - 300-137BKOverview: Single Plane EFI LS Intake Manifold. All GM LS Gen III or IV engines equipped with LS1 LS2 LS6 style cathedral port cylinder heads. Black Ceramic Coating to provide you with that aggressive look in your engine compartment. 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

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. Black Ceramic Coating to provide you with that aggressive look in your engine compartment.

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

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Brand Holley EFI
Construction Cast
Emission Code 4
Engine GM Small Block Gen III/IV (LS Based)
Finish Black
Front Height 5.417 inch
Fuel System Type EFI
Manifold Type Single Plane
Product Type Manifold
Rear Height 5.417 inch
RPM Power Band 2500-7000
Warranty Limited 90 Day
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 57540185359

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 27 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
Joseph Pratt
Pawtucket, US
★★★★★ 5
Great product.
Size: Small, Color: (001) Black / Black / White
🙏🙏🙏
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
C
Verified Purchase
Chelsey Bartoli
Battle Creek, US
★★★★★ 5
Great buy!
Size: Medium, Color: (001) Black / Black / White
My husband loves these. The socks are warm and thick and extremely comfortable. They support the foot and he works outside all day and has had them for a little over a month. They stay in place and don’t move move around while he’s outside moving around.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 6, 2025
C
Verified Purchase
Cathy
Belleville, US
★★★★★ 5
Happy Customer
Size: Medium, Color: (001) Black / Black / White
Item was as describe, comfortable and stays in place thick but breathable ! I will order from this company again
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 15, 2026
S
Verified Purchase
Sue M
Omaha, US
★★★★★ 5
Love these socks
Size: Large, Color: (035) Steel / White / Black
Great quality socks
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
K
Verified Purchase
Kendra
Carnegie, US
★★★★★ 4
Good quality
Size: Large, Color: (035) Steel / White / Black
These are a bit thicker then a compression sock and they come up higher on the ankle than a no-show sock normally does. They are very comfortable and soft.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026

recommand products