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SKU: 151-4301 | UPC: 672036047313
ARP Cylinder Head Stud Kit for 2015-2023 Ford Mustang EcoBoost & 2016-2018 Focus RS 2.3L
The ARP 151-4301 Cylinder Head Stud Kit secures cylinder heads on Ford 2.3L EcoBoost engines found in 2015-2023 Mustang EcoBoost models and 2016-2018 Focus RS. This Pro Series kit delivers consistent clamping force to maintain head gasket integrity under high boost and RPM. Engine builders select ARP studs for competition engines due to their strength and precision manufacturing.
Key Features
- ARP2000 Alloy: Heat-treated to 220,000 PSI tensile strength for extreme durability in boosted applications
- Black Oxide Finish: Provides corrosion resistance and smooth installation on engine blocks
- Post-Heat-Treat Thread Rolling: Increases fatigue strength by 2000% compared to pre-heat-treat threading
- Centerless Ground Studs: Ensures concentricity so heads and gaskets align perfectly without binding
- Undercut Stud Design: Equalizes stretch across studs for uniform clamping and gasket compression
Product Notes
- Complete kit includes studs, hardened washers, and 12-point nuts
- Apply ARP Ultra-Torque assembly lube to threads and under nut faces
- Packages in protective ARP box with instructions, weight 2.3 lbs
Installation Notes
- Professional installation recommended.
- Clean block threads thoroughly with tap before assembly
- Torque in ARP-specified sequence to 65 ft-lbs plus 110 degree angle on long studs
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015-2023 | Ford | Mustang | EcoBoost 2.3L |
| 2016-2018 | Ford | Focus | RS 2.3L |
Why Choose ARP?
- Relied on by nearly every top professional engine builder in racing
- Premium 8740 and ARP2000 alloys exceed aircraft steel ratings
- Vertical rack heat-treatment and precision grinding for straightness
Frequently Asked Questions
-
Q: Will this kit fit my 2016 Ford Focus RS 2.3L EcoBoost?
A: Yes, ARP 151-4301 is direct fit for 2016-2018 Focus RS 2.3L and 2015-2023 Mustang EcoBoost 2.3L engines -
Q: What makes ARP2000 material different?
A: ARP2000 is a proprietary alloy heat-treated to 220,000 PSI with thread rolling after treatment for maximum fatigue resistance -
Q: What warranty is included?
A: ARP provides a one-year warranty against manufacturing defects when installed and torqued per instructions
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: ARP branded box, 12 x 8 x 2 inches
- Weight: 2.3 lbs
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