If you're running a Holley Lo-Ram or Hi-Ram intake on your LS, LT, or Ford Small Block build and want to set it apart, TSP's carbon fiber plenum cover is one of the cleanest upgrades you can make. Constructed from genuine carbon fiber with a high-gloss finish, it replaces the standard Holley plenum top and sits 1 inch taller than Holley's standard plenum — giving it a more aggressive profile while keeping the clean carbon fiber look under the hood. Pressure tested by TSP to 50 psi, it's built to handle forced induction applications with confidence. The 102mm throttle body flange maintains compatibility with popular LS throttle body setups, and the modular design makes installation straightforward. Fits GM LS engines (4.8L–7.0L, 1998–2019) and Gen V LT 6.2L (2014–2016). Note: does not fit Ultra Lo-Ram intakes, and O-rings and hardware are not included
Features
- Fits GM LS and LT Lo-Ram and Hi-Ram cast aluminum Holley intakes
- Lightweight carbon fiber construction
- Modular design for improved maintenance and installation
- Runner design improves airflow and performance
- Does not include O-rings or hardware
- Plenum is 1 in. taller than standard Holley Plenum
- 102 mm Throttle Body Flange
Emissions Warning
Products sold on this website may not be legal for use on public roads or highways due to Environmental Protection Agency (EPA) restrictions or California Air Resources Board (CARB) emissions regulations. Federal and State regulations may restrict Product installation to pre-emissions regulation (Model Year 1974 or earlier) or to competition/racing vehicles used exclusively in
1) events organized by recognized bodies, authorizing permits for participating drivers.
2) racing event qualification, and3) practice associated with events.
Installation of such products, including driving racing vehicles to and from the track, may be considered illegal “tampering ” or as “defeat device”, and may result in federal and state penalties. It is the purchaser’s responsibility to ensure compliance with all applicable emissions laws, including California’s stricter standards.
Proposition 65 Warning:
This product may contain chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
- Engine Block Style:
- Stock/OEM standard deck
- Style:
- N/A
- Basic Operating RPM Range:
- N/A
- Material:
- Carbon Fiber
- Finish:
- Black
- Height:
- 4.900 in.
- Intake Section Included:
- Plenum Only
- Throttle Body Bore Size:
- 102mm
- EGR:
- No
- Has Bosses:
- No
- Bosses Machined:
- No
- Boss Quantity:
- N/A
- Injectors Included:
- No
- Fuel Rails Included:
- No
- Aftermarket Fuel Rail Required:
- N/A
- Throttle Body Included:
- No
- Quantity:
- Sold individually.
- Notes:
- Plenum will fit Holley Lo-Ram and Hi-Ram Intakes, including Ford and Chevy Small Block. Will not fit Ultra Lo-Ram intakes.
- Make:
- Chevrolet
- Engine Family:
- Chevy small block Gen III/IV (LS-based engines)
- Engine Sizes:
- 4.8L/294-7.0L/427
- Years:
- 1998-2019
- Engine Family:
- Chevy small block Gen V (LT-based engines)
- Engine Size:
- 6.2L/376
- Years:
- 2014-2016
- Cylinder Head Style:
- LT Series Gen V
