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Holley LT Modular Hi-Ram Lower Intake Manifolds 300-237 Manifolds, Modular, Hi-Ram, Base Only, Standard Deck, Tunnel Ram, 3,500-8,000 RPM Range, Aluminum, Satin Finish, Chevy, 5.3L, 6.2L, Each
Holley LT Modular Hi-Ram Lower Intake Manifolds 300-237 Manifolds, Modular, Hi-Ram, Base Only, Standard Deck, Tunnel Ram, 3,500-8,000 RPM Range, Aluminum, Satin Finish, Chevy, 5.3L, 6.2L, Each
Description
The design of Holley Hi-Ram GM LT1 lower manifolds allows for easy disassembly to do custom porting, use multiple tops, or create custom induction systems. Each runner has a large radius where it meets the plenum, as well as an optimized taper and cross-sectional area to perform in a wide variety of engine configurations. The bases are available with or without port EFI provisions. Are you looking for the ultimate performance? Begin with Holley LT Modular Hi-Ram lower intake manifolds.
Features include:
* Modular design with removable top
* Overall height: 13.34 in. with EFI top (95mm or 105mm)
* Overall height: 12.10 in. with carb-style top (2 x 4150 or 2 x 4500)
* Height at plenum flange: 9.44 in.
* Port size: 2.06 in. high x 1.53 in. wide
* Runner length: approximately 6.5 in.
* Large plenum volume of 549 cu. in. with 1 x 95mm or 1 x 105mm throttle body top
* Available with or without injector ports in the runners
* Intakes with injector ports include fuel rails with dual mounting (1.48 in. or 2.56 in.) O-ring to O-ring injector length
* Anodized fuel rails, laser-etched, and machined for -8 AN O-ring fittings
* Rear of plenum machined for MAP and three vacuum ports
* Head flange has clearance for fuel supply to a high-pressure pump
* Increased runner wall thickness for custom porting at the plenum-to-runner entry on each runner
* O-ring seals at cylinder heads and plenum top
* Top-mounted screws on plenum top (all except front two screws)
* Available top options: 1 x 95mm, 1 x 105mm, 2 x 4150, 2 x 4500, or blank flange for custom throttle bodies (all sold separately)
* 3,500-8,000+ rpm power band
Part Type
Intake Manifolds, Carbureted
Specifications
- Product Attributes - Brand
- Holley
- Product Attributes - Manufacturer's Part Number
- 300-237
- Product Attributes - Part Type
- Intake Manifolds, Carbureted
- Product Attributes - Product Line
- Holley LT Modular Hi-Ram Lower Intake Manifolds
- Product Attributes - UPC
- 090127730607
- Product Attributes - Intake Section Included
- Base only
- Product Attributes - Engine Block Deck Height
- Standard deck
- Product Attributes - Intake Style
- Tunnel Ram
- Product Attributes - Basic Operating RPM Range
- 3,500-8,000
- Product Attributes - Intake Manifold Height
- 9.440 in.
- Product Attributes - Intake Color
- Natural
- Product Attributes - Intake Material
- Aluminum
- Product Attributes - EGR
- No
- Product Attributes - Quantity
- Sold individually.
- Product Attributes - Notes
- Height is at plenum flange. Overall height is dependent on top plate.
Reference Information
| Brand Name/s | Holley |
|---|---|
| StreetFX SKU | hly300-237 |
| SFX Item ID | 4782726 |
| Supplier Item Code | 4782726 |
| Manufacturer SKU | 300-237 |
| Manufacturer UPC | N/A |
| Alternative References | HOL300-237, 5.3L, 6.2L |
Compatibility
| Application Data |
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