GM LS 104mm Cast Aluminum Throttle Body Elbow with 4150 Flange - Polished
GM LS 104mm Cast Aluminum Throttle Body Elbow with 4150 Flange - Polished
SKU: SKU: 81141P
In stock
Product Details
Features
- Compatible with GM LS throttle body and Holley 4150 flange
- Composed of cast aluminum
Description
If you're looking for a unique way to switch from carb to EFI, TSP's 105mm throttle body elbow will help get the job done. Composed of cast aluminum, it features a Holley 4150 style flange and stock 4-bolt pattern, and it comes in satin, black, or polished finishes.
Specs
| Color | Polished |
| Fuel System Type | Electronic Fuel Injection |
| Gasket Or Seal Included | No |
| Grade Type | Performance |
| Height | 5.120 in. |
| Intake Manifold Flange Style | 4150 Square Bore |
| Main Port Inside Diameter | 104 mm |
| Manifold Absolute Pressure Sensor Port Included | Yes |
| Material | Aluminum |
| Meth Injection/Boost Reference Port Thread Size | (2) 0.125 in. NPT |
| Meth Injection/Boost Reference Ports Included | Yes |
| Mounting Hardware Included | Yes in. |
| Mounting Hole Quantity | 4 |
| Nitrous Port Included | Yes mm |
| Nitrous Port Thread Size | 0.0625 in. NPT |
| Port Plugs Included | Yes |
| Port Quantity | 1 |
| Quantity | Sold individually |
| Quantity | Sold individually |
| Throttle Body Bore Size | 104 mm |
| Throttle Cable Bracket Included | Yes |
| Vacuum Port Thread Sizes | (1) 0.375, (2) 0.250 in. NPT |
| Vacuum Ports Included | Performance |
Engine Fitment
COMPATIBLE WITH
CHEVROLET SMALL BLOCK V8 GEN. III/IV (LS BASED)
• 4.8 L / 293 in3
• 5.3 L / 325 in3
• 5.7 L / 346 in3
• 6.0 L / 364 in3
• 6.2 L / 376 in3
NOTES
• Fits intake with Holley 4150 carburetor flange
• 105 mm throttle body opening with stock 4-bolt pattern
Q&A
What applications is this throttle body compatible with?
This throttle body is designed for CHEVROLET SMALL BLOCK V8 GEN. III/IV (LS BASED).
Will this throttle body fit GM LS applications?
Yes, this throttle body is designed for compatible GM LS-based applications and should be matched to the correct intake and electronics.
What size throttle body is this?
This throttle body features a 104 mm bore size, which can affect airflow capacity and overall engine performance.
Do I need to verify flange compatibility before installation?
Yes, flange pattern and sealing surface compatibility should always be confirmed before installation.
What type of throttle body is this?
This is a performance throttle body designed for electronic fuel injection applications.
Will this throttle body help improve throttle response?
Yes, a properly matched performance throttle body can help improve airflow response and throttle feel compared to a more restrictive stock-style unit.
Do I need to match the throttle actuation style to my setup?
Yes, throttle actuation style must match the intended control setup for proper operation and installation.
Do I need to verify sensor compatibility before installation?
Yes, throttle body sensor and connector compatibility should always be confirmed against your engine management system.
Does this throttle body include a MAP sensor port?
Yes, this throttle body includes a MAP sensor port provision to support compatible engine management setups.
Do I need additional parts for installation?
Depending on your setup, you may need a gasket, hardware, adapters, or tuning support during installation.
Is this throttle body a good upgrade from stock?
Yes, this throttle body is a strong upgrade for compatible applications that need improved airflow, better throttle response, and performance-oriented fit and finish.
Will this throttle body help support added airflow demand?
Yes, a properly matched performance throttle body can help support engines with intake, camshaft, cylinder head, or forced induction upgrades that demand more airflow.
Do I need tuning after installing a throttle body?
Depending on the application and the size change, tuning may be recommended to get the best drivability and performance results.
Does the polished finish affect performance?
No, the polished finish is cosmetic and does not change throttle body performance—it gives it a bright show-quality appearance.
How do I maintain the polished finish?
Regular cleaning and occasional polishing will help maintain the shine and reduce surface oxidation over time.
Emissions Notice
This product does not affect vehicle emissions and is not subject to emissions compliance regulations.
GM LS 104mm Cast Aluminum Throttle Body Elbow with 4150 Flange - Polished
If you're looking for a unique way to switch from carb to EFI, TSP's 105mm throttle body elbow will help get the job done. Composed of cast aluminum, it features a Holley 4150 style flange and stock 4-bolt pattern, and it comes in satin, black, or polished finishes.
COMPATIBLE WITH
CHEVROLET SMALL BLOCK V8 GEN. III/IV (LS BASED)
• 4.8 L / 293 in3
• 5.3 L / 325 in3
• 5.7 L / 346 in3
• 6.0 L / 364 in3
• 6.2 L / 376 in3
NOTES
• Fits intake with Holley 4150 carburetor flange
• 105 mm throttle body opening with stock 4-bolt pattern
Color: Polished
Fuel System Type: Electronic Fuel Injection
Gasket Or Seal Included: No
Grade Type: Performance
Height: 5.120 in.
Intake Manifold Flange Style: 4150 Square Bore
Main Port Inside Diameter: 104 mm
Manifold Absolute Pressure Sensor Port Included: Yes
Material: Aluminum
Meth Injection/Boost Reference Port Thread Size: (2) 0.125 in. NPT
Meth Injection/Boost Reference Ports Included: Yes
Mounting Hardware Included: Yes in.
Mounting Hole Quantity: 4
Nitrous Port Included: Yes mm
Nitrous Port Thread Size: 0.0625 in. NPT
Port Plugs Included: Yes
Port Quantity: 1
Quantity: Sold individually
Quantity: Sold individually
Throttle Body Bore Size: 104 mm
Throttle Cable Bracket Included: Yes
Vacuum Port Thread Sizes: (1) 0.375, (2) 0.250 in. NPT
Vacuum Ports Included: Performance
