Holley Hi-Ram EFI Intake Manifold | GM LS7 w/ 105mm Throttle Body (300-125)

GM LS7 Hi-Ram EFI Intake Manifold by Holley

The Holley GM LS7 Modular Hi–Ram Intake Manifold is introduced as a cost effective alternative to fabricated sheet–metal for high–performance applications where induction system height is not limited.

Coupling this Hi–Ram intake with the high flowing LS7 style cylinder heads has outstanding potential for N/A and forced induction applications at a budget–minded cost. Aggressive, bold, race–bred styling will make bad intentions clear for drag race, muscle car, marine, off–road, sandrails, pulling trucks, track, street–rod applications and more!

The base is designed to be modular in configuration to accept a wide range of carbureted and EFI tops and to be attractive to builders and fabricators as the foundation for custom induction systems. Runner length and the tapered cross–section designed to perform well for a wide range of engine configurations. EFI fuel rails are machined for –8AN O–ring Fittings with passages large enough to accommodate high fuel flows and dampen pressure pulsations in the fuel system and come standard with EFI Hi–Ram kits.

Features

• Runner Length – 6.29”, As-Cast Runner Cross-Sectional Area – Tapered 4.67in² to 2.84 in²
• Throttle Body Flange Location, with 92/102mm EFI Plenum Top : Height – 8.42” (from engine block lifter valley cover flange), Longitudinal Location – 3.84” (forward from engine block front flange), Angle – 25 deg. (down from vertical)
• Plenum Top Gasket Type – 3/32” Round O-ring Cord
• Mounting Flange Gasket Type – Standard LS3 Molded O-Ring
• Port Size – 2.49” Height x 1.21” Wide/li>
• Total Height with 92/105mm EFI Plenum Top – 12.32” to the lifter valley cover flange on engine block.
• Base Plenum Top Mounting Flange Height – 8.42” to the lifter valley cover flange on engine block.

Please Note: The front and rear height measurements listed in the Specs section are referencing the overall height with the top plate installed. Please see the diagrams in the product images for other dimensions.

Applications

• GM LS7 w/ 105mm Throttle Body

Specifications

• Construction: Cast
• Emission Code: 3
• Engine: GM LS7
• Finish: Satin or Black Ceramic
• Flange Style: EFI
• Front Height: 12.32″
• Fuel System Type: EFI
• Manifold Type: Hi-Ram
• RPM Power Band: 1500-7000

What’s In The Box?

• 1 – Hi-Ram Intake Manifold
• 2 – EFI Fuel Rails

References

• Installation Instructions

Warranty

• Holley Performance Products warrants its new products to be free from defects in material and workmanship for a period of 90 days from date of purchase.