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
A$2,060.16
IN STOCK! Est Ship 3-7 Days days.
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Description
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 02:15:31
Features
Note for Australian and European Markets
Unless otherwise stated, this product may be engineered for use in Left-Hand Drive vehicles. Steering components, pedals, shifters, linkages, wing mirrors, instrument clusters, panhard rods/traction bars, drag links, brake boosters, brake or clutch lines, accelerator cables, heater cores, some master cylinders and adjacent parts can vary between LHD and RHD configurations. In some models compenents such as windscreen wiper arms, motors and linkages could differ in their size and orientation. Items such as floor mats & dash mats may have differences in their structure around the front row (or padding in different locations). In many cases items are identical depending on the design of the vehicle and part, but may have differing mounts, lengths or bolt patterns. Carefully review the product images and details to ensure suitability for your vehicle, or contact StreetFX support if you are unsure. Returns are not accepted for special order products.
(keyword: manifolds)Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
Specifications
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Holley, Hilborn, Holley Efi, Retrobright, Terminator X |
| StreetFX SKU | hly300-237 |
| SFX Item ID | 4782726 |
| Accounting SKU | hly-300-237 |
| Manufacturer SKU | 300-237 |
| Manufacturer UPC | N/A |
| Alternative References | 300-237, HLY-300-237, HOL300-237 |
Intake Manifolds, LT Modular, Hi-Ram, Base Only, Standard Deck, Tunnel Ram, 3,500-8,000 RPM Range, Aluminum, Satin Finish, Chevy, 5.3L, 6.2L, Each
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
| Product Attributes | |
|---|---|
| Brand | Holley |
| Manufacturer's Part Number | 300-237 |
| Part Type | Intake Manifolds, Carbureted |
| Product Line | Holley LT Modular Hi-Ram Lower Intake Manifolds |
| UPC | 090127730607 |
| Intake Section Included | Base only |
| Engine Block Deck Height | Standard deck |
| Intake Style | Tunnel Ram |
| Basic Operating RPM Range | 3,500-8,000 |
| Intake Manifold Height | 9.440 in. |
| Intake Color | Natural |
| Intake Material | Aluminum |
| EGR | No |
| Quantity | Sold individually. |
| Notes | Height is at plenum flange. Overall height is dependent on top plate. |
Compatibility
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