
( Brand: Tsp ), ( Type: Carb Spacer ), ( Manufacturer Part Number: SP9139 ), ( Country/region Of Manufacture: United States )
Review TSP New Rpc 1/2 Inch Phenolic Hole Carburetor Spacer Studs Holley 4150 4160
The Holley TSP SP9139 RPC 1/2 Phenolic Hole Carburetor Spacer Studs are an essential accessory for any carburetor using a 1/2-inch stud to secure the carburetor to the intake manifold. This specifically designed part is suitable for Holley 4150 and 4160 series carburetors.
These spacer studs are manufactured using high-quality phenolic material, known for its durability and resistance to heat. The phenolic material is also non-conductive, ensuring the studs do not transfer heat to the fuel system or cause any electrical interference.
Each stud features a threaded 1/2-inch end, allowing them to securely fasten the carburetor to the intake manifold. The studs also include one side with phenolic holes for improved gasket sealing, which can help to prevent leaks around the carburetor base and improve the overall performance of the carburetor system.
The surface of the studs is carefully finished and deburred to ensure a clean and smooth installation. They are sold in sets, and their affordable price point makes them a cost-effective solution for any performance enthusiast or professional mechanic.
In summary, the Holley TSP SP9139 RPC 1/2 Phenolic Hole Carburetor Spacer Studs are an essential accessory for securing a Holley 4150 or 4160 series carburetor to the intake manifold. They offer excellent durability, heat resistance, and gasket sealing capabilities, making them an ideal choice for those looking to improve the performance and reliability of their carburetor system.
Pros and Cons of Buying Holley 4150/4160 TSP SP9139 RPC 1/2 Phenolic Hole Carburetor Spacer Studs
Introduction:The Holley TSP SP9139 RPC 1/2 Phenolic Hole Carburetor Spacer Studs are an essential upgrade for race applications or high-performance builds using Holley 4150 or 4160 series carburetors. These carburetor studs have several advantages and disadvantages. In this analysis, we will discuss the pros and cons to help you make an informed decision about purchasing these studs.
Pros:1. Enhanced Torque Capability: The phenolic hole material can handle higher clamping forces compared to traditional aluminum studs and retains its shape under extreme torque conditions. This makes the SP9139 RPC an excellent choice for high-performance engine builds that need strong carburetor studs.
2. Heat Dissipation: Holley's phenolic spacer studs have excellent heat Transfer properties; they absorb less heat from the engine, which may prolong the performance life and reduce the risk of gasket failure or warpage.
3. Reduced Thread Wear: The spacer studs have an anti-twist design that keeps threads from coming into contact, minimizing thread wear and ensuring that the carburetor remains properly sealed over the long term.
4. Race-Proven: Holley phenolic spacer studs have a proven track record in the racing community. They are used by professional teams to optimize their carbureted engines and have earned a reputation for durability and performance.
Cons:1. Cost: TSP SP9139 RPC 1/2 phenolic hole carburetor spacer studs are more expensive than standard studs, which might be a deterrent for those on a tight budget.
2. Requires Special Tools: Installing these studs may require specialized tools. The blue-colored studs may need a specific torque wrench for precise installation, which some enthusiasts may not have readily available.
3. Slightly Longer Installation Time: Due to the time required for using special tools to ensure the proper torque, these studs may take slightly longer to install compared to traditional spacer studs.
Conclusion:Holley's TSP SP9139 RPC 1/2 phenolic hole carburetor spacer studs offer several benefits such as enhanced torque capabilities, superior heat transfer, reduced thread wear, and race-proven performance. However, they come with a higher cost, specialized installation tools, and increased installation time. If you're building a high-performance engine with a carburetor and are willing to invest in this premium part for improved durability and performance, the Holley TSP SP9139 RPC 1/2 phenolic hole carburetor spacer studs are a solid choice. If cost is a concern or the advantages don't seem essential, traditional aluminum carburetor studs may be more appropriate.
part # sp9139 price
- $24.95
specifications carbcaddie:
- brand: Tsp
- type: Carb Spacer
- manufacturer part number: SP9139
- country/region of manufacture: United States
seller carbcaddie:
- # reviews: 44707
- rating: 98.4%
returns carbcaddie:
- paid by: Buyer
- policy: Returns Accepted
- time: 30 Days
payments carbcaddie:
- wallet: Apple-pay
- other
- credit card: Visa
offer carbcaddie:
- quantity: 3
- started: January 14, 2025
- availability: In Stock
- sold: 0
- options: Ship-to-home
shipping carbcaddie:
- carrier: USPS
- cost: $0.00
- type: Fixed
- service: USPS Ground Advantage
- transit: 3-10 Days
- class: Standard
general carbcaddie:
- Car Truck Parts Accessories > Air Fuel Delivery > Carburetor Parts
- condition: New
Tsp SP9139 Is Similar To:
- Fmr Hz-6054x Universal 36 Inch Throttle Pedal Stainless Steel Cable Kit Tsp Sp7209 (29.2% similar) $27.00–$27.99. (March 3rd, 2026)
