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SKU: 203-5409 | UPC: 672036650278
ARP Toyota Supra B58B30 Main Stud Kit 2020-2024 GR Supra 3.0L
The ARP Toyota Supra B58B30 Main Stud Kit replaces weak factory main bolts with high-strength studs that secure the crankshaft main bearings in the bottom end. This kit fits the 2020-2024 Toyota GR Supra equipped with the BMW-sourced 3.0L B58 turbocharged inline-six engine. It provides the clamping power needed for 1000+ horsepower builds track abuse and daily driving reliability.
Key Features
- ARP2000 Alloy Steel: Rated at 220,000 PSI tensile strength over 50% stronger than OEM bolts to resist stretch and failure under extreme cylinder pressures
- Rolled Threads: Produced after heat treatment for maximum fatigue resistance and consistent torque loading during high-boost operation
- Black Oxide Finish: Resists corrosion galling and seizing in harsh engine environments for long-term durability
- Complete Kit Contents: Includes 7 main studs (for inline-6 main bearings) Grade 25 CrMo 12-point nuts and hardened parallel ground washers
- Precision Fit: CNC-machined to exact OEM dimensions for drop-in installation on B58B30 blocks without machining
Product Notes
- Use ARP Ultra-Torque assembly lube on threads and under nut faces for accurate torque values
- Torque main studs to ARP spec 105-110 ft-lbs depending on fastener position
- Packaged in protective ARP box to prevent damage during shipping
Installation Notes
- Professional installation recommended.
- Remove stock main bolts clean block and cap threads with ARP thread cleaner
- Fully compatible with stock B58 main caps girdle and performance aftermarket caps
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020-2024 | Toyota | GR Supra | 3.0L Turbo B58 |
Why Choose ARP?
- 70+ years as the go-to brand for racing engine builders in NHRA Top Fuel and endurance racing
- Every batch exceeds ARP's internal standards with tensile fatigue and proof-load testing
- Engineered in the USA with tolerances held to +/- 0.0005 inches for flawless repeatability
Frequently Asked Questions
-
Q: Will this kit fit my 2020-2024 Toyota GR Supra 3.0L?
A: Yes it bolts directly into the B58B30 engine block used in all 2020-2024 GR Supra 3.0L models including Premium and Launch Edition trims -
Q: What material are the studs made from and what strength do they offer?
A: Forged ARP2000 alloy steel with a minimum 220,000 PSI tensile strength and 135,000 PSI yield strength far exceeding aluminum block requirements -
Q: What is the warranty and installation torque spec?
A: ARP offers a warranty against manufacturing defects when installed and torqued per instructions main studs torque to 105 ft-lbs inner positions and 110 ft-lbs outer with moly lube
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Compact ARP-branded box 9 x 6 x 1.75 inches
- Weight: 1.9 lbs
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