SKU: 37965 / UPC: 084663379659
Moroso 5/16in-24 x 2.0in Long 12-Point Nuts Carburetor Stud Kit
Secure your carburetor with the Moroso 37965 stud kit designed for square bore flange carburetors like Holley and Edelbrock models. This kit fits most performance V8 intakes on Chevy small block, big block, Ford 289-460, and Chrysler engines from 1955 to present. Deliver reliable torque retention and precise alignment for consistent fuel delivery in racing and street applications.
Key Features
- Shouldered Studs – 5/16-24 thread x 2.000in long with built-in step for accurate carb centering and gasket compression
- Cadmium Plated Finish – Corrosion resistant steel studs ensure long-lasting performance in harsh engine environments
- Chromoly Nuts – 12-point black oxide nuts provide high strength and easy wrench access for quick installs
- Complete Kit – Includes 4 studs and 8 nuts for full carb mounting on dual bolt patterns
- High Torque Capacity – Handles extreme vibration and heat for dependable hold on high-horsepower builds
- Universal Design – Matches standard 4150 flange spacing on aftermarket manifolds
Specifications
| Detail | Value |
|---|---|
| Brand | Moroso |
| Type | Carburetor Stud Kit |
| Compatibility | Square bore 4150 flange carbs on V8 intakes |
| Thread Size | 5/16in-24 x 2.0in long |
| Quantity | 4 studs, 8 nuts |
| Weight | 0.2 lb |
| Shipping Dimensions | 6 x 4 x 1 in |
| Country of Origin | USA |
| Warranty | Moroso limited lifetime |
Whats Included
- 4 x Cadmium plated steel studs (5/16-24 x 2.000in shouldered)
- 8 x 12-point chromoly nuts (black oxide finish)
Product Notes
- Studs feature rolled threads for superior strength over cut threads
- 12-point nuts allow 12 positions for socket engagement to prevent rounding
- Ideal for high-performance carb setups requiring precise stud length
This Part Fits
| Year Range | Make | Model | Notes |
|---|---|---|---|
| 1955-2023 | Chevrolet | Small Block V8 | Holley/Edelbrock carbs on aftermarket intakes |
| 1955-2023 | Chevrolet | Big Block V8 | Standard 4150 flange carbs |
| 1962-2023 | Ford | 289/302/351/390/427/428/460 V8 | Performance manifolds |
| 1958-2023 | Chrysler | 318/340/360/440 V8 | Square bore carb applications |
Why Choose Moroso?
- Proven in NHRA and IHRA racing for decades
- Engineered materials resist fatigue under boost and nitrous
- Exact fit eliminates leaks and misalignment issues
- Trusted by professional builders for critical engine components
Frequently Asked Questions
- Q: What carburetors does this kit fit?
- A: Fits Holley, Edelbrock, Demon, Quick Fuel square bore 4150 flange carbs.
- Q: Are the studs the correct length for LS engines?
- A: Yes, 2in length suits most LS cathedral port intakes with carb adapters.
- Q: Can these handle high horsepower?
- A: Yes, chromoly nuts and steel studs support 1000+ HP applications.
Shipping & Handling
- Method: UPS Ground
- Availability: In stock – ships same or next business day
- Packaging: Compact box with protective padding
Fabrication
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Fittings
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Moroso
Moroso performance parts and engine-bay hardware are stocked at Black Ops Auto Works for street, drag, road-race, swap, and restoration builds. Shop Moroso oil pans, oil pump pickups, breather tanks, catch cans, valve covers, oil filters, drain plugs, fuel-system accessories, cooling hardware, carburetor studs, spark plug wire looms, drag shocks, and race-prep parts for GM LS and small block, Ford Coyote and classic Ford, Chrysler and Mopar, Toyota 1JZ and 2JZ, Subaru, and other broad performance platforms. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 241 Moroso SKUs across oil control, crankcase ventilation, engine dress-up, fuel and cooling support, fasteners, and track-focused chassis hardware. About Moroso Performance Products Moroso develops race-proven parts that help builders control oil, manage crankcase pressure, organize the engine bay, and prepare vehicles for dema...
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