Installation Time
(approx) 20 Minutes
Difficulty Level:
Simple installation for anyone.
Installation Guides
No guide available for this part yet.
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Holley LS7 EFI Hi-Ram Intake Manifold with 105mm LS Throttle Body Mount and Fuel Rails (06-13 Corvette C6 Z06)
Item CV5258
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Product Information
Features, Description, Q&A, Specs & Installation
Features
- Fits GM LS7 Engines
- 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 Degrees Down From Vertical
- Mounting Flange Gasket Type – Standard LS3 Molded O-Ring
- Base Plenum Top Mounting Flange Height – 8.42” To The Lifter Valley Cover Flange On Engine Block
- Runner Length – 6.29”
- As-Cast Runner Cross-Sectional Area – Tapered 4.67 In² To 2.84 In²
- Total Height With 92/105mm EFI Plenum Top – 12.32” To The Lifter Valley Cover Flange On Engine Block
- Port Size – 2.49” Height By 1.21” Wide
- Plenum Top Gasket Type – 3/32” Round O-Ring Cord
- Fuel Rails Machined For -8AN O-Ring Fittings With Large Passages To Accommodate High Fuel Flows And Dampen Pressure Pulsations
- Cast Aluminum Construction
- Designed For Naturally Aspirated Or Forced Induction Engines In The 6.0 To 7.0+ Liter Range
- Maximum Power At 7000-8000+ RPM
- Single Plane Manifold Type
- Removable Top/Lid: Yes
- Includes Fuel Rail(s) And Gaskets
- Vacuum Ports Included
- Fits 06-13 Corvette C6 Z06
Description
High-Performance Intake Solution. The Holley LS7 EFI Hi-Ram Intake Manifold with 105mm LS Throttle Body Mount and Fuel Rails is engineered to maximize airflow and fuel delivery for high-output GM LS7 engines. It improves engine breathing for both naturally aspirated and forced induction configurations, enabling maximum power output at elevated RPMs. Its design is ideal for drag racing, muscle cars, marine use, off-road, and street performance where height clearance is not a concern.
Construction and Appearance. Crafted from durable cast aluminum, this manifold features a natural finish that combines race-inspired styling with strong build quality. The fuel rails are precision-machined for -8AN O-ring fittings, allowing high fuel flow and pressure stability. The tapered runners and modular base design accommodate various EFI or carbureted plenum tops for versatile setup options.
Installation. Requires moderate mechanical skill and does not typically demand drilling or permanent engine modifications. It fits directly onto LS7 engines using standard LS3 style molded O-ring gaskets, making installation straightforward and reliable.
Warranty. Supported by the manufacturer's limited 90-day warranty covering quality and workmanship. Application. Specifically designed for the 06-13 Corvette C6 Z06, delivering optimized performance tailored for this model and engine combination.
Holley 300-125
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- Intake Manifold
4.9
Reviews of Holley Intake Products (8)
Questions & Answers
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Will It Fit My Corvette
- Z06 - 06, 07, 08, 09, 10, 11, 12, 13
