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: Modular Design w/ Removable Top
Overall Height: 13.34" (w/ EFI Top - 95mm or 105mm) - See Drawing
A-B Height: 12.10" (w/ Carb Style Top - 2 x 4150 or 2 x 4500) - See Drawing
Height at Plenum Flange: 9.44"
Port Size: 2.06" High x 1.53" Wide
Runner Length: Approx. 6.5"
Large Plenum Volume of 549 Cubic Inches (w/ 1 x 95mm or 1 x 105mm Throttle Body Top)
Available With or Without Injector Ports in the Runners
Intakes w/ Injector Ports Include Fuel Rails w/ Dual Mounting (1.48" or 2.56" O-ring to O-ring injector length)
Fuel Rails are Anodized, Laser Etched, and Machined for 8AN O-Ring Fittings at Each End
Rear of Plenum Machined for MAP & 3 Vacuum Ports
Head Flange has Clearance for Fuel Supply to 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 & Plenum Top
Easy Assembly w/ Top Mounted Screws on Plenum Top (all except front 2 screws)
Several Top Options: 1 x 95mm, 1 x 105mm, 2 x 4150, 2 x 4500, or Blank Flange for Custom Throttle Bodies
3500-8000+ RPM Power BandProduct Description: Intake Manifold, Hi-Ram EFI, 92 mm Throttle Body Flange, Fuel Rails Included, Multi Port, Aluminum, Natural, GM GenV LT-Series, Kit Intake Manifold, Hi-Ram EFI, 92 mm Throttle Body Flange, Fuel Rails Included, Multi Port, Aluminum, Natural, GM GenV LT-Series, KitPit Stop USA offers Holley Hi-Ram Intake Manifold - GM LT1 300-143 at low everyday prices. Be sure to check out all our products from Holley Performance Products including Holley Intake Manifolds.