Halltech Systems Stinger Throttle Body Hump Hose - No Hole in PCV Hose - PCV Fitting - Notch (2005 - 2007 Chevrolet Corvette C6 LS2 Venom / 2014 - 2019 C7 Stingray / 2017 - 2019 Grand Sport / 2015 - 2019 Z06) - H-4X3.75-RHH
The Halltech Systems H-4X3.75-RHH Flex-Lock throttle body hump hose provides a purpose-built 4-inch to 3.75-inch transition for compatible Halltech intake systems. This version is configured with no hole in the PCV hose, includes the Halltech PCV elbow fitting, and has the added notch. Halltech specifically calls for the notch when this hose is used with its 2005-2007 C6 LS2 Venom V2026 system.
Halltech's Flex-Lock design is more than a basic silicone reducer. The 3-inch-long hose uses seven-layer, Nomex-reinforced silicone construction with a nominal .142-inch wall thickness, a compliant hump section to accommodate engine movement and torque, and internal grip ridges that increase engagement at both ends. Two stainless steel hose clamps are included, along with the PCV fitting specified for this configuration.
Specifications
- Manufacturer: Halltech Systems
- Part Number: H-4X3.75-RHH
- Product: Flex-Lock Reducing Throttle Body Hump Hose
- Intake-Side Inside Diameter: 4 inches
- Throttle Body-Side Inside Diameter: 3.75 inches
- Hose Length: 3 inches
- Nominal Hose Thickness: .142 inches
- Construction: Seven-layer Nomex-reinforced silicone
- Hose Design: Flexible hump section with internal grip ridges
- PCV Hole: No hole in PCV hose
- PCV Fitting: Included
- Notch: Included
- Clamps: Two stainless steel hose clamps included
- Intake Connection: 4-inch Halltech Stinger-series intake bridge connection
- Throttle Body Connection: 3.75-inch inside diameter
Features
- Halltech Flex-Lock reducing throttle body hump hose
- Transitions from a 4-inch intake connection to a 3.75-inch throttle body connection
- No PCV hole in the hose with this configuration
- Halltech PCV elbow fitting included
- Added notch included
- Notch configuration specified by Halltech for its 2005-2007 C6 LS2 Venom V2026 system
- Seven-layer Nomex-reinforced silicone construction
- Compliant hump section accommodates engine movement and torque
- Internal grip ridges increase mechanical engagement at both hose connections
- 3-inch overall hose length
- Nominal .142-inch hose thickness
- Includes two stainless steel hose clamps
Notched Configuration with PCV Fitting
This H-4X3.75-RHH combines the added notch with the Halltech PCV elbow fitting while leaving the hose itself without a PCV hole. Halltech specifically instructs customers to request the notch when using this hose with its 2005-2007 C6 LS2 Venom V2026 system. Because the PCV hole, fitting, and notch are separate configuration choices, matching all three selections to the intended intake setup is important when ordering a replacement hose.
Halltech Flex-Lock Design
The connection between the intake and throttle body has to remain secure while the engine moves under load. Halltech's Flex-Lock design addresses both requirements with a compliant hump section that allows controlled movement and internal grip ridges that increase engagement at the intake and throttle body connections. The hose can flex where movement is required while maintaining positive mechanical grip where the connection needs to hold.
Seven-Layer Nomex-Reinforced Silicone
The H-4X3.75-RHH is mandrel-formed from seven-layer, Nomex-reinforced silicone. Its reinforced construction, nominal .142-inch wall thickness, and flexible hump section work together to create a resilient intake transition instead of relying on a basic straight silicone reducer.
4-Inch to 3.75-Inch Reducing Design
The hose uses a 4-inch inside diameter on the intake end for Halltech Stinger-series intake bridges and reduces to a 3.75-inch inside diameter at the throttle body end. The diameter transition is incorporated directly into the 3-inch-long hump hose, eliminating the need to stack separate reducers and couplers between the intake and throttle body.
Fitment
- 2005 Chevrolet Corvette C6 LS2 Venom
- 2006 Chevrolet Corvette C6 LS2 Venom
- 2007 Chevrolet Corvette C6 LS2 Venom
- 2014 Chevrolet Corvette C7 Stingray
- 2015 Chevrolet Corvette C7 Stingray
- 2016 Chevrolet Corvette C7 Stingray
- 2017 Chevrolet Corvette C7 Stingray
- 2018 Chevrolet Corvette C7 Stingray
- 2019 Chevrolet Corvette C7 Stingray
- 2017 Chevrolet Corvette C7 Grand Sport
- 2018 Chevrolet Corvette C7 Grand Sport
- 2019 Chevrolet Corvette C7 Grand Sport
- 2015 Chevrolet Corvette C7 Z06
- 2016 Chevrolet Corvette C7 Z06
- 2017 Chevrolet Corvette C7 Z06
- 2018 Chevrolet Corvette C7 Z06
- 2019 Chevrolet Corvette C7 Z06
FAQs
What PCV and notch configuration does this H-4X3.75-RHH include?
This specific version has no hole in the PCV hose, includes the Halltech PCV elbow fitting, and includes the added notch. Halltech specifically identifies the notch for its 2005-2007 C6 LS2 Venom V2026 system.
What size connections does the Halltech H-4X3.75-RHH use?
The hose has a 4-inch inside diameter on the intake end and a 3.75-inch inside diameter on the throttle body end. It is 3 inches long with a nominal .142-inch wall thickness and includes two stainless steel hose clamps.
Get Your Halltech Flex-Lock Hump Hose from Beefcake Racing
Get the Halltech H-4X3.75-RHH Flex-Lock throttle body hump hose configuration your intake setup requires from Beefcake Racing. For help with Halltech intake components or configuration questions, contact us at sales@beefcakeracing.com or call 1-855-827-7223.
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