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- USA
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Ships within 48 hours · Estimated delivery Jul 5 - Jul 10
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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
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Product Reviews
★★★★★ 4
As described..handsome watch
Style: Dress, Color: Two-Tone Gold/ Blue Dial
Christmas gifts my sons will remember..beautiful watch.
Easy to adjust the bracelet if you buy the kit..
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Reviewed in the United States on February 9, 2025
★★★★★ 5
Great affords
Style: Dress, Color: Two-Tone Gold/ Blue Dial
Absolute great watch. It’s perfect for an every day and situation from work to date night. I had to take out 4 links and now it fits perfectly!
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Reviewed in the United States on July 5, 2025
★★★★★ 5
Wonderful
Fantastic buy! This contains everything I need (minus a phone), and because it zips up, I know everything is secure. I recommend this product.
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Exactly what I needed for traveling!
This Amazon Basics Travel Passport Wallet Organizer is amazing value for the price. It has multiple easily accessible slots & pockets that can be used for credit cards, boarding passes, receipts, pens, and currencies if traveling internationally. The wallet has a zipper which can safely secure folded documents such as immunization records, marriage certificates, and citizen forms if needed. The functional design is larger than I anticipated and the material feels well-made, solid, and looks nice. I could not fit the wallet in my pocket, but it easily fits into a backpack or purse. If I happen lose this or misplaced this one, I will be purchasing this again.
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Reviewed in the United States on November 2, 2025
★★★★★ 5
Good purchase
I love this. Good quality, secur, easy to carry when travelling and plenty of card space. Slides in your carry on with ease. Good price... worth the price for me.
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Reviewed in the United States on January 24, 2026