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Description
Holley Single Plane EFI Intake - GM LS1/LS2/LS6 - 300-137Overview: Single Plane EFI LS Intake Manifold. All GM LS Gen III or IV engines equipped with LS1 LS2 LS6 style cathedral port cylinder heads. 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 Minimum carb flange height fit in vehicles with minimum hood modifications Cast aluminum construction great manifold for centrifugal
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.
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
- 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 | 3 |
| Engine | GM Small Block Gen III/IV (LS Based) |
| Finish | Satin |
| Flange Style | 4150 Square Bore |
| 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:
- 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
4.2 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Perfect!
Size: 88‘’Wide-4 Panel, Color: Grey, Size: 88‘’Wide-4 Panel, Color: Grey
This is exactly what I was looking for. I created essentially a doorway into the pantry area I have in my basement. I had the bought a screen years ago that hid most of it but this completed it. I ordered the 4 panels, for the size, and created a "door" of out the two.
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Reviewed in the United States on January 7, 2025
★★★★★ 1
**Product Review: Disappointing Experience with Misaligned Pieces**
Size: 88‘’Wide-4 Panel, Color: Grey
I purchased this product with high expectations, but unfortunately, it turned out to be a major disappointment. The biggest issue? The pieces are terribly misaligned. Assembling it was a nightmare, as nothing fit together properly. The holes didn’t line up, the joints were uneven, and I had to force parts into place, which only made the situation worse. Something that should have taken 15 minutes took hours trying to screw the poles together.
This product clearly lacks quality control. For the price I paid, I expected much better craftsmanship. It's incredibly frustrating to spend time and money on something that is so poorly made. I would not recommend this to anyone unless they want to waste their time and end up with a subpar product.
Avoid this at all costs!
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Reviewed in the United States on September 4, 2024
★★★★★ 5
Room divider
Size: 132‘’Wide-6 Panel, Color: Grey
Good quality, right price and great value.
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Reviewed in the United States on August 8, 2025
★★★★★ 5
Pretty good, especially for this price point.
Color: Beige, Size: 21.5"- 1 Panel
This is merely a piece of cloth stretched between the frame borders, but it works perfectly. It arrived quickly, all parts present and in good condition. I didn't put the castors on, as it will be more or less always in one position. I simply attached some felt sliders on the bottom to prevent scratching the floor and to allow clearance for the center screw (which is not flush fit). Overall, a reasonable deal for the price point.
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Reviewed in the United States on May 30, 2026
★★★★★ 5
Easy to manage
Color: Black, Size: 88"- 4 Panel
Sturdy, easy to manage and roll around. The material for the walls is of a decent ply as well
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Reviewed in the United States on May 24, 2026