1
of
3
Loading...
Holley EFI | SKU:
300-237
Holley 300-237 Hi-Ram Lower Manifold - GM LT1
LT1 Hi-Ram, Lower Manifold Only w/out Port EFI Provisions. Order Plenum Top Separately.
Regular price
$1,482.70 NZD
+ GST
Unit price
/
Unavailable
Shipping calculated at checkout.
Holley 300-237 Hi-Ram Lower Manifold - GM LT1 is not in stock at Fast Lane Spares and will ship direct from supplier
ā Special Order Item ā ships direct from supplier. No returns, exchanges, or cancellations once processed. Please allow 7ā20 days shipping.
Stock Status:
Description
Description
LT1 Hi-Ram, Lower Manifold Only w/out Port EFI Provisions. Order Plenum Top Separately.
Part Number: 300-237
The new Holley EFI Hi-Ram intake provides the ultimate performance with the new GM direct injected Gen V 6.2L LT1 engine. The modular design of this manifold allows easy disassembly for custom porting, multiple tops, or custom induction systems. Each runner has a large radius where it meets the plenum, and optimized taper & cross-sectional area to perform in a wide variety of engine configurations. The optional injector bosses on the intake runners allow increased performance potential by using additional injectors along with the factory direct injection. When you look for the pinnacle of performance, price, and quality, look to Holley EFI.
Features and Benefits
ā¢ Height at Plenum Flange: 9.44ā
ā¢ Modular Design w/ Removable Top
ā¢ Easy Assembly w/ Top Mounted Screws on Plenum Top (all except front 2 screws)
ā¢ Overall Height: 13.34ā (w/ EFI Top - 95mm or 105mm) ā See Drawing
ā¢ A-B Height: 12.10ā (w/ Carb Style Top - 2 x 4150 or 2 x 4500) ā See Drawing
ā¢ 3500-8000+ RPM Power Band
ā¢ Intakes w/ Injector Ports Include Fuel Rails w/ Dual Mounting (1.48ā or 2.56ā O-ring to O-ring injector length)
ā¢ Head Flange has Clearance for Fuel Supply to High Pressure Pump
ā¢ Fuel Rails are Anodized, Laser Etched, and Machined for 8AN O-Ring Fittings at Each End
ā¢ O-Ring Seals at Cylinder Heads & Plenum Top
ā¢ Port Size: 2.06ā High x 1.53ā Wide
ā¢ Runner Length: Approx. 6.5ā
ā¢ Rear of Plenum Machined for MAP & 3 Vacuum Ports
ā¢ Increased Runner Wall Thickness for Custom Porting at the Plenum to Runner Entry on Each Runner
ā¢ Large Plenum Volume of 549 Cubic Inches (w/ 1 x 95mm or 1 x 105mm Throttle Body Top)
ā¢ Several Top Options: 1 x 95mm, 1 x 105mm, 2 x 4150, 2 x 4500, or Blank Flange for Custom Throttle Bodies
ā¢ Available With or Without Injector Ports in the Runners
The versions of the LT1 Hi-Ram intake manifold with port EFI provisions and fuel rails are designed to accept Bosch Style EV-1 or GM LS7 fuel injectors
Part Number: 300-237
The new Holley EFI Hi-Ram intake provides the ultimate performance with the new GM direct injected Gen V 6.2L LT1 engine. The modular design of this manifold allows easy disassembly for custom porting, multiple tops, or custom induction systems. Each runner has a large radius where it meets the plenum, and optimized taper & cross-sectional area to perform in a wide variety of engine configurations. The optional injector bosses on the intake runners allow increased performance potential by using additional injectors along with the factory direct injection. When you look for the pinnacle of performance, price, and quality, look to Holley EFI.
Features and Benefits
ā¢ Height at Plenum Flange: 9.44ā
ā¢ Modular Design w/ Removable Top
ā¢ Easy Assembly w/ Top Mounted Screws on Plenum Top (all except front 2 screws)
ā¢ Overall Height: 13.34ā (w/ EFI Top - 95mm or 105mm) ā See Drawing
ā¢ A-B Height: 12.10ā (w/ Carb Style Top - 2 x 4150 or 2 x 4500) ā See Drawing
ā¢ 3500-8000+ RPM Power Band
ā¢ Intakes w/ Injector Ports Include Fuel Rails w/ Dual Mounting (1.48ā or 2.56ā O-ring to O-ring injector length)
ā¢ Head Flange has Clearance for Fuel Supply to High Pressure Pump
ā¢ Fuel Rails are Anodized, Laser Etched, and Machined for 8AN O-Ring Fittings at Each End
ā¢ O-Ring Seals at Cylinder Heads & Plenum Top
ā¢ Port Size: 2.06ā High x 1.53ā Wide
ā¢ Runner Length: Approx. 6.5ā
ā¢ Rear of Plenum Machined for MAP & 3 Vacuum Ports
ā¢ Increased Runner Wall Thickness for Custom Porting at the Plenum to Runner Entry on Each Runner
ā¢ Large Plenum Volume of 549 Cubic Inches (w/ 1 x 95mm or 1 x 105mm Throttle Body Top)
ā¢ Several Top Options: 1 x 95mm, 1 x 105mm, 2 x 4150, 2 x 4500, or Blank Flange for Custom Throttle Bodies
ā¢ Available With or Without Injector Ports in the Runners
The versions of the LT1 Hi-Ram intake manifold with port EFI provisions and fuel rails are designed to accept Bosch Style EV-1 or GM LS7 fuel injectors
Specifications
Specifications
-
Specifications
Basic Operating RPM Range 3500-8000+ Brand Holley EFI Carburetor Flange N/A Carburetor Quantity N/A Carburetor Studs Included N/A Category Engine CNC Ported No Color Natural Construction Cast Cylinder Head Port Shape Rectangle Deck Height 9.24 EGR Port No Emission Code 4 Engine GM Gen V LT1 Flange Style N/A Fuel Injectors Included No Fuel Rail(s) Included Yes Gasket Or Seal Included Yes Grade Type Performance Intake Port Gasket(s) Included No Manifold Type Hi-Ram Material Aluminum Nitrous Bung(s) Included No part type Engine Intake Manifold Plenum Finish Natural Product Type Intake Manifold Base Removable Runners No Removable Top/Lid Yes Single Or Dual Plane Type Single Plane Sub Category Cylinder Block Components Throttle Body Bore Diameter N/A Throttle Body Gasket Included No Throttle Body Included No Type of Component Lower Manifold Vacuum Ports Yes Warning California Proposition 65 Warranty Manufacturer's Limited 90 Day Warranty -
Instructions
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
