300-229BK EFI Hi-Ram Base Only For LS7

Name: 300-229BK EFI Hi-Ram Base Only For LS7
Brand: HOLLEY
SKU: 510-300-229BK
Price: 949.95 USD
Availability: InStock

^$949⁹⁵

Ships on 10/26/2026

Lowest Price Guarantee

LS Modular Hi-Ram Base Only

EFI Hi-Ram Base Only

For LS7

Black Ceramic Finish

Holley 300-229BK Features:

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.• Cast aluminum construction.• Intended for use on N/A or forced induction engines in the 6.0 to 7.0+ liter range, max power at 7000-8000+RPM.

Port Size – 2.49” Height x 1.21” Wide
Mounting Flange Gasket Type – Standard LS3 Molded O-Ring
Plenum Top Gasket Type – 3/32” Round O-ring Cord
Runner Length – 6.29”, As-Cast Runner Cross-Sectional Area – Tapered 4.67 in² to 2.84 in²

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

Make Your Bad Intentions Known!

Holley GM LS Modular Hi-Ram Intake Manifold features aggressive race-bred styling for all-out performance! Intended for use where hood clearance is not a factor, Hi-Ram intakes feature straight long runners with a tall overall height for producing maximum power on naturally aspirated or forced induction engines at 7,000 to 8,000 RPM! Designed with a modular base to allow a wide variety of carbureted or EFI tops and also provides a great foundation for custom fabricated inductions. Hi-Ram LS intakes are perfect for any LS powered drag race, muscle car, marine, off-road, sandrail, pulling truck or street-rod application!

Features

Cast aluminum available in natural or black ceramic coated finish
2.490 in. Height x 1.210 in. Wide Port Size
Standard Molded O-Ring Mounting Flange Gasket
3/32 in. Round O-ring Cord Plenum Top Gasket
EFI fuel rails are machined for -8 AN 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