SKU: 5013
GSC P-D Ford 5.2L Voodoo/Predator Conical Spring & Ti Retainer Kit 2015-2023 Mustang Shelby GT350/GT500
Upgrade your Ford 5.2L Voodoo or Predator engine with the GSC Power-Division conical spring and titanium retainer kit designed for Shelby Mustang GT350 GT350R and GT500 models. This complete 16-piece valvetrain set delivers precise valve control at extreme RPMs for track or street performance. Engineered to handle aggressive cams boost and nitrous applications with reliable durability.
Key Features
- Spring Pressures: Seat pressure at 180 lbs open pressure at 525 lbs with 1.400 inch lift ensures solid valve stability beyond 9000 RPM
- Conical Design: Reduces weight and harmonics while increasing control over stock multi-layer springs for smoother high-speed operation
- Titanium Retainers: Forged 198 titanium construction cuts rotating mass for quicker revving and less stress on valvetrain components
- Super Clean Wire Springs: Premium material resists fatigue and maintains rates longer than standard springs in demanding conditions
- Complete Kit: Includes 16 conical springs 16 titanium retainers and 16 spring seats for direct bolt-on replacement
Product Notes
- Valve springs must be load tested prior to installation to confirm pressures match specifications
- Pair with matching GSC camshafts for optimal performance gains
- Ships in protective foam packaging to prevent damage
Installation Notes
- Professional installation recommended.
- Requires checking installed height and coil bind clearance during setup
- Compatible with stock GT350/GT500 heads and locks no additional hardware needed
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2016-2020 | Ford | Mustang | Shelby GT350 |
| 2017-2020 | Ford | Mustang | Shelby GT350R |
| 2020-2023 | Ford | Mustang | Shelby GT500 |
Why Choose GSC?
- Proven in NHRA drag racing and road course applications
- Made in USA with rigorous dyno and load testing
- Precision tolerances for drop-in fit and consistent performance
Frequently Asked Questions
- Q: Will this kit fit my 2016 GT350 with aftermarket cams?
A: Yes supports up to 1.400 inch lift works with most cams under that spec verify your setup matches pressures - Q: What material are the springs made from?
A: Super clean wire steel springs paired with 198 titanium retainers for strength and weight reduction - Q: Does it come with a warranty?
A: Backed by GSC lifetime warranty against spring failure when installed correctly
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock – ships same or next business day
- Packaging: Foam protected box 11 x 8 x 3 inches
- Weight: 4.1 lbs
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