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Holley | Holley EFI Modular Lo-Ram Intake Manifold
300-621BK
Holley | Modular Ultra Lo-Ram EFI Intake Manifold 300-621BK | Black cast, front-feed, 6.86 in. w/TB adapter | GM LS1/LS2/LS6 forced induction
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CAD $1,453.12
CAD $1,709.55
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Holley – Modular Ultra Lo-Ram EFI Intake Manifold
Description
The Holley 300-621BK Modular Ultra Lo-Ram EFI intake manifold is designed for GM LS Gen III and IV engines with LS1/LS2/LS6 (cathedral port) cylinder heads, featuring a black cast finish. This upper front-feed manifold offers a very low-profile total height of 6.86 in. with throttle body adapter, ideal for turbocharged or centrifugally supercharged engines. Modular design allows custom inlet duct and 105mm throttle body placement. Clears 4th gen Camaro/C5 Corvette hoods. High volume fuel rails with brackets for long and short injectors are included.
Specifications
- Brand: Holley
- Part Number: 300-621BK
- Compatible Engine: GM LS1/LS2/LS6 (Cathedral Port)
- Type: Modular Ultra Lo-Ram EFI, upper position
- Configuration: Front-feed, 105mm throttle body
- Total Height: 6.86 in. (with throttle body adapter)
- Application: Forced induction (turbocharged/centrifugal supercharger)
- RPM Range: 7,000 to 8,000 RPM
- High volume fuel rails: Included
- Finish: Black cast
- Compatibility: GM LS1/LS2/LS6 (universal application)
- Condition: New
- Sold and shipped by GBP Performance
Note:
- Livraison GRATUITE / FREE Delivery
Compatibility (Application)
| Make | Model | Years | Engine | Notes |
|---|---|---|---|---|
| Not Application Specific | Not Application Specific | Not Application Specific | GM LS1/LS2/LS6 Cathedral Port | Universal application – refer to manufacturer specifications |
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