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Description
16-24 Camaro SS Hi-Ram Intake Manifold W/O Port EFI - Holley


FITS 2016-2024 CAMARO ( SS MODELS )
DESCRIPTION:
Upgrade the high-RPM airflow capability of your 2016-2024 Chevrolet Camaro SS LT1 with the Holley EFI Hi-Ram Intake Manifold. Designed specifically for the GM Gen V 6.2L LT1, this cast-aluminum manifold is available as part number 300-143 with a 92mm LS-style longitudinal throttle body opening or part number 300-142 with a 105mm opening. Both versions are configured without supplemental port EFI provisions and feature Holley’s modular removable-plenum design for performance-oriented engine combinations. The Hi-Ram features approximately 6.5-inch runners with large-radius plenum entries, optimized runner taper and cross-sectional area, 2.06 x 1.53-inch intake ports, and a large 549-cubic-inch plenum. Holley rates the manifold for a 3,500-8,000+ RPM power band, making it particularly suited for modified LT1 combinations designed to produce power at higher engine speeds.
Key Features
- Holley EFI Hi-Ram intake manifold
- Designed for GM Gen V 6.2L LT1 engines
- Part #300-143 features a 92mm throttle body bore
- Part #300-142 features a 105mm throttle body bore
- Longitudinal LS-style throttle body configuration
- No supplemental port EFI provisions
- Cast aluminum construction
- Natural aluminum finish
- Modular design with removable plenum top
- 3,500-8,000+ RPM operating range
- Approximately 6.5-inch runner length
- 2.06-inch high x 1.53-inch wide intake ports
- Large 549-cubic-inch plenum volume
- 13.34-inch overall height with EFI top
- 9.44-inch height at plenum flange
- Large-radius runner entries with optimized taper and cross-sectional area
- Increased runner wall thickness provides additional material for custom porting
- Rear of plenum machined for MAP sensor and three vacuum ports
- O-ring seals at cylinder heads and plenum top
- Throttle body gasket included
- Throttle body not included
Important Notes
- Fits 2016-2024 Chevrolet Camaro SS models equipped with the Gen V 6.2L LT1 engine.
- Part #300-143 uses a 92mm throttle body bore, while part #300-142 uses a 105mm throttle body bore. Select the manifold based on the throttle body and induction combination being used.
- These versions are supplied without supplemental port EFI provisions and are intended for combinations retaining the LT1 direct-injection system.
- With the EFI top installed, Holley lists an overall manifold height of 13.34 inches. Hood and surrounding component clearance should be verified before installation.
- Holley assigns both manifolds Emissions Code 4. They are legal for sale or use only on racing-use-only vehicles used exclusively for competition, and Holley states they are not legal for installation on emissions-controlled street vehicles.