Holley Hi-Ram Lower Intake Manifold Kit (GM LT1)

LT1 Hi-Ram, Lower Manifold Only w/Port EFI Provisions & Fuel Rails. Order Plenum Top Separately.

• Modular Design w/ Removable Top
• Overall Height: 13.34" (w/ EFI Top - 95mm or 105mm)
• A-B Height: 12.10" (w/ Carb Style Top - 2 x 4150 or 2 x 4500)
• 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 Band

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