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Vivid Racing Gear 
421023 CNC Fabrication Valve Spring Shim Kit
The 421023 CNC Fabrication Valve Spring Shim Kit is engineered specifically for the Ford Power Stroke 7.3L engines from 1994.5 to 2003. This kit is designed for automotive enthusiasts looking to enhance valve train performance and reliability.
Key Features
- Precision machined in-house using advanced tooling on a Sunnen seat and guide machine, ensuring superior quality that exceeds OEM specifications.
- Utilizes brand new upgraded castings to address common failure points found in factory heads, significantly reducing the risk of cracking.
- Incorporates O-ring technology to effectively prevent head gasket failures, enhancing overall engine integrity.
- Includes all new intake and exhaust valves for improved airflow and performance.
- Comes with fresh springs, retainers, keepers, and seals, ensuring a complete overhaul of the valve train components.
- Features hardened valve seats to resist wear and cracking, extending the lifespan of your engine components.
- Each unit is vacuum checked to guarantee proper valve seat sealing, providing peace of mind during installation.
- No core return is required, making the installation process straightforward and hassle-free.
- Enjoy the benefit of free ground shipping with your purchase.
Fitment
- Ford Power Stroke 7.3L: 1994.5-2003
Upgrade your Ford Power Stroke with the 421023 CNC Fabrication Valve Spring Shim Kit for enhanced performance and reliability. This kit is a smart choice for enthusiasts looking to maximize their engine's potential.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
CNC Fabrication specializes in the performance of Ford Power Stroke diesel engines. From stock cars to sled pulling and drag racing, there is something for everyone. At CNC Fabrication, they have a mission to consistently expand their brand through the introduction of innovative, high-quality products that will enable them to better serve customers’ specific needs.
CNC FABRICATION HISTORYCNC Fabrication, began as a side business about ten years ago with the goal of assisting Ford Powerstroke in upgrading their work vehicles and resolving some concerns. Due to the success of their first two products, the shop has grown quickly, allowing the owner to leave his 22-year full-time job as a journeyman millwright to keep making new, innovative products and giving customers more ways to keep their trucks running for many years to come. CNC Fabrication is one of the rare manufacturers of Ford engines and accessories that is being sold at an affordable price without compromising on quality.
CNC FABRICATION PRODUCTWith decades of experience delivering proven capabilities in precision, quality, and documentation standards, CNC Machine & Fabrication possesses the expertise, machinery, and management necessary to deliver precision parts of the highest quality with exceptional service. Exclusively for the Ford Powerstroke engine line up, they are the best in performance diesel parts and machinery accessories. These include injectors, exhaust, fuel systems, fabrication, suspension, turbos, and interior accessories for ford engines. One of their heavy production is the 7.3L fuel line kit Ford Powerstroke engine that eliminates mechanical leaks and comes with all the necessary fittings for the installation process.
Vivid Racing – CNC FABRICATIONVivid Racing holds high quality products from CNC Fabrication suppliers. Their specific products includes the ford Powerstroke feed fuel line kit, Air Intake heater delete plug, air cooler boot kit, fuel line kit, fuel bowl Powerstroke, high pressure oil pump lines, intake plenum reinforcement, plate girdle black oxide steel, valve spring kit, and Bee hive valve for Ford engines.
| Sale price | None |
| Wholesale price | $2,072.98 |
| Shipping |
Weight: 120.00 Length: 24 Width: 12 Height: 8 |
| Product Added At | Wednesday 23 April, 2025 |
| Product Modified At | Tuesday 27 May, 2025 |
| Imported By | ETLOverride |
| Last Edited By | kathi@vividracing.com |
| View In Admin |
| Carb Approved | No |
|---|---|
| Carb Number | - |
| Epa Status | - |
| Prop65 | - |
| Carb Required | - |
| Vendor | Inv | Cost | Retail | Jobber | MAP | Core | Updated | |||
|---|---|---|---|---|---|---|---|---|---|---|
| CNC Fabrication | $1,756.76 | $2,195.95 | ? | ? | ? | 2025-05-27 16:35:18 |
