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Vivid Racing Gear 
CNC Fabrication Valve Spring Shim Kit - Part Number 421027
The CNC Fabrication Valve Spring Shim Kit (Part Number 421027) is engineered specifically for the Ford Power Stroke 7.3L models produced between 1994.5 and 2003. This kit is designed for automotive enthusiasts seeking to enhance the performance and reliability of their diesel engines.
Key Features
- Precision machined in-house using a Sunnen seat and guide machine, ensuring components exceed OEM specifications.
- Each part undergoes magnetic particle inspection to identify any potential defects.
- Pressure tested for durability and reliability under extreme conditions.
- Includes Inconel intake and exhaust valves, known for their strength and heat resistance.
- Comes with a CNC Fabrication Stage 2 155lb beehive valve spring kit, providing optimal performance for high-boost applications.
- O-ringed design enhances sealing capabilities for higher boost levels.
- Features new brass injector cups for improved fuel delivery and reliability.
- Vacuum checked to ensure proper valve seat sealing, preventing leaks and maintaining performance.
- Ships free via ground shipping, making it easy to get your parts without extra cost.
- Backed by a 1-year warranty covering parts and workmanship.
Fitment Information
- Compatible with Ford Power Stroke 7.3L models from 1994.5 to 2003.
This valve spring shim kit is a solid choice for those looking to upgrade their Ford Power Stroke engine. With its high-quality materials and precise engineering, it offers a reliable solution for enhancing performance while maintaining the integrity of your engine.
⚠ 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 | $3,016.98 |
| Shipping |
Weight: 100.00 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 | $2,556.76 | $3,195.95 | ? | ? | ? | 2025-05-27 16:31:20 |
