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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
4.8 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
This Batana Oil is an Amazing Product
Size: 4.05 Fl Oz (Pack of 1), Size: 4.05 Fl Oz (Pack of 1)
This is an amazing product. It moisturizes your hair and soothes your scalp. I highly recommend this product. It is rich but not too heavy. My hair feels so much softer and it feels so good on the scalp. My hair is shinier and healthier overall. Dr. Sebi Honduras found the right formula when he put this oil paste together.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
★★★★★ 5
Really liking this so far
Size: 4.05 Fl Oz (Pack of 1)
I’ve been using this about twice a week and usually leave it on for around 2 hours before washing my hair. First thing I noticed was that it’s thick and moisturizing without making my hair feel oily or weighed down. A lot of hair oils I’ve tried in the past left my roots greasy, but this one doesn’t.
After I style my hair, it definitely looks shinier and feels fuller with more body. My ends also feel softer and less dry. I only need a small amount each time, so the jar should last a while.
The smell surprised me in a good way too. To me it smells kind of like coffee or peanut butter. It has a natural scent and isn’t too strong.
I know hair growth products take time and I’m realistic about that, so I’m planning to keep using it consistently for a few months before judging those results. But based on how healthy and manageable my hair already looks, I’m happy with this purchase so far.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
★★★★★ 5
Moisturized without feeling greasy
Size: 4.05 Fl Oz (Pack of 1)
Been using this Batana Oil for a few weeks and my hair already feels thicker, softer, and healthier. I’ve noticed less shedding and my scalp stays moisturized without feeling greasy. You can tell it’s natural and high quality. Definitely worth trying if you’re dealing with thinning or breakage.
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Reviewed in the United States on May 23, 2026
★★★★★ 5
So Far So Great
Size: 4.05 Fl Oz (Pack of 1), Size: 4.05 Fl Oz (Pack of 1)
Super excited to add this product into my hair care regimen. The batana oil has a mild but pleasant smell. The oil is more of a paste so I don’t have to use much. On days when I layer products, I like to oil my scalp and hair strands and apply the batana oil to my ends as a sealant. I also apply it to my hairline and scalp sometimes. So far it has made my hair feel and look moisturizer, soft and fuller. I’m very excited to see the positive effects that it has long term. I was encouraged to apply the product from the plethora of positive reviews. And the fact that batana oil is proven to be great for hair health.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
This stuff is awesome!
Size: 4.05 Fl Oz (Pack of 1), Size: 4.05 Fl Oz (Pack of 1)
What I have noticed is: My hair feels softer and more moisturized, Less dryness, especially at the ends, Overall looks a bit more nourished and stronger.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026