Holley 300-620 Lo-Ram Intake Manifold LS1 LS2 LS6 Cathedral Port 105mm Satin
Part # 300-620 SKU HLY300-620
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HOLLEY
Holley 300-620 Lo-Ram Intake Manifold LS1 LS2 LS6 Cathedral Port 105mm Satin
Highlights
- Fuel rail kit
- Included
- Throttle body flange
- Single 105 mm
- Housing material
- Cast Aluminum
- Item length
- 24.21 in (61.49 cm)
- Alternate description
- Intake Manifold Lo-Ram GM LS1 Satin
- Item height
- 14.96 in (38.00 cm)
- Manifold front height
- 9.07 in
- Item width
- 15.35 in (38.99 cm)
- Mounting style
- Bolt-On
- Finish/color
- Natural Satin
- Removable top
- Yes (2-Piece Modular Design)
- Operating range
- Up to 8000 RPM
- Dimensions
- 24.21" L × 15.35" W × 14.96" H
- Gaskets/hardware
- Included
- Egr
- No
- Type
- Intake Manifold
Description
Holley 300-620 Lo-Ram Intake Manifold LS1 LS2 LS6 Cathedral Port 105mm Satin
The Holley 300-620 Lo-Ram Intake Manifold is designed to elevate your LS1, LS2, or LS6 engine's performance by optimizing airflow and enhancing throttle response. Constructed with precision, this manifold provides an ideal balance between performance and drivability, catering to both street and race applications. Its satin finish not only looks exceptional but also promotes a durable surface that stands up to the rigors of high-performance use.
This intake manifold features cathedral port designs that facilitate greater air entry, allowing your engine to breathe more efficiently at higher RPMs. Its unique low-profile structure helps to lower the center of gravity in your engine bay. This optimized geometry significantly improves the air-fuel mixture, leading to increased horsepower and torque across a broad power band.
In addition, the 105mm throttle body opening provided by this manifold allows for substantial airflow, making it an excellent choice for those looking to maximize their engine's potential. The Lo-Ram design effectively reduces overall weight while maintaining structural integrity, making for a performance part that doesn't compromise on durability.
FITMENT: Compatible with LS1, LS2, and LS6 engines utilizing cathedral port cylinder heads.
Key Features & Benefits
- Precision-engineered for maximum airflow and improved throttle response.
- Satin finish enhances aesthetics while providing corrosion resistance.
- Cathedral port design for superior air entry and mixture efficiency.
- Low-profile design lowers engine weight and center of gravity.
- 105mm throttle body opening for enhanced performance in high RPM situations.
Vehicle fitment
| Make | Model | Submodel | Years |
|---|
No vehicle matches that filter.
Fitment data from the manufacturer catalogue. Check your engine before ordering, or call us.
Specifications
| Identification | |
|---|---|
| Brand | HOLLEY |
| Part number | 300-620 |
| SKU | HLY300-620 |
| UPC | 090127077542 |
| Dimensions and weight | |
| Dimensions (W × H × D) | 15.00 × 24.00 × 15.00 in |
| Material and finish | |
| Series and warranty | |
| Details | |
| Fuel rail kit | Included |
| Throttle body flange | Single 105 mm |
| Housing material | Cast Aluminum |
| Includes | Intake Manifold, Fuel Rail Kit, Gaskets, Hardware |
| Item length | 24.21 in (61.49 cm) |
| Alternate description | Intake Manifold Lo-Ram GM LS1 Satin |
| Item height | 14.96 in (38.00 cm) |
| Manifold front height | 9.07 in |
| Item width | 15.35 in (38.99 cm) |
| Mounting style | Bolt-On |
| Finish/color | Natural Satin |
| Removable top | Yes (2-Piece Modular Design) |
| Operating range | Up to 8000 RPM |
| Dimensions | 24.21" L × 15.35" W × 14.96" H |
| Gaskets/hardware | Included |
| Egr | No |
| Type | Intake Manifold |
Shipping and returns
Shipping. Free on every order, US only. Orders arrive in 2–4 days.
Returns. 60-day free returns, except in extreme cases.
Support. Our team is available 24/7 for fitment mismatches or any other reason.
Warranty. Full manufacturer guarantee.
Not sure about this part? Ask us.
Fitment, install, what else you need for the job. A parts person answers, usually within one business day.
We answer by email. No account needed.
Questions and answers
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Reviews
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