SKU: 93524938577

Holley Hi-Ram Lower Manifold - GM LT1 - 300-236

Sale price$449.98 Regular price$499.98
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Ships within 48 hours · Estimated delivery Aug 30 - Sep 4

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Holley Hi-Ram Lower Manifold - GM LT1 - 300-236Overview: The new Holley EFI Hi Ram intake provides the ultimate performance with the new GM direct injected Gen V 6. 2L LT1 engine. The modular design of this manifold allows easy disassembly for custom porting, multiple tops, or custom induction systems. Each runner has a large radius where it meets the plenum, and optimized taper & cross sectional area to perform in a wide variety of engine configurations. The optional injector bosses on the intake

Overview:

The new Holley EFI Hi-Ram intake provides the ultimate performance with the new GM direct-injected Gen V 6.2L LT1 engine. The modular design of this manifold allows easy disassembly for custom porting, multiple tops, or custom induction systems. Each runner has a large radius where it meets the plenum, and optimized taper & cross-sectional area to perform in a wide variety of engine configurations. The optional injector bosses on the intake runners allow increased performance potential by using additional injectors along with the factory direct injection. When you look for the pinnacle of performance, price, and quality, look to Holley EFI.

Features:

  • Modular Design w/ Removable Top
  • Overall Height: 13.34” (w/ EFI Top - 95mm or 105mm) – See Drawing
  • A-B Height: 12.10” (w/ Carb Style Top - 2 x 4150 or 2 x 4500) – See Drawing
  • Height at Plenum Flange: 9.44”
  • Port Size: 2.06” High x 1.53” Wide
  • Runner Length: Approx. 6.5”
  • Large Plenum Volume of 549 Cubic Inches (w/ 1 x 95mm or 1 x 105mm Throttle Body Top)
  • Available With or Without Injector Ports in the Runners
  • Intakes w/ Injector Ports Include Fuel Rails w/ Dual Mounting (1.48” or 2.56” O-ring to O-ring injector length)
  • Fuel Rails are Anodized, Laser Etched, and Machined for 8AN O-Ring Fittings at Each End
  • Rear of Plenum Machined for MAP & 3 Vacuum Ports
  • Head Flange has Clearance for Fuel Supply to High Pressure Pump
  • Increased Runner Wall Thickness for Custom Porting at the Plenum to Runner Entry on Each Runner
  • O-Ring Seals at Cylinder Heads & Plenum Top
  • Easy Assembly w/ Top Mounted Screws on Plenum Top (all except front 2 screws)
  • Several Top Options: 1 x 95mm, 1 x 105mm, 2 x 4150, 2 x 4500, or Blank Flange for Custom Throttle Bodies
  • 3500-8000+ RPM Power Band

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Brand Holley EFI
Construction Cast
Emission Code 3
Engine GM Gen V LT1
Finish Satin
Manifold Type Hi-Ram
Product Type Intake Manifold
RPM Power Band 3500-8000+
Type of Component Lower Manifold
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: 93524938577

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Jackie LJ
Birmingham, US
★★★★★ 5
Happy Husband 😊
Size: XX-Large, Color: Light Blue
Great material and fit. My husband was very happy with the shirt!
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Reviewed in the United States on April 18, 2026
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BoxerJoe
Louisville, US
★★★★★ 4
Worth The Price
Size: Medium, Color: Black
Arrived on time with no issues. Quality was fine for the low price. I needed some summer shirts after losing weight and did not want to spend a lot. Solid purchase for the price, so I ordered several. Sixty-five pounds later, they served their purpose.
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Reviewed in the United States on April 23, 2026
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JDGuent
Charlottesville, US
★★★★★ 5
Fit well at my size
Size: XX-Large, Color: White
Fit well at my size. Good shirt
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Reviewed in the United States on April 15, 2026
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Sandy Bourn
Pawtucket, US
★★★★★ 5
Good
Size: XX-Large, Color: Black
Good material and true to size
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Reviewed in the United States on April 15, 2026
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Kaneisha Johnson
Waukegan, US
★★★★★ 5
Great Quality
Size: Large, Color: Light Blue
Very nice
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Reviewed in the United States on April 1, 2026

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