Close this search box.
Your Professional CNC Block Guard Manufacturer In China

HDC was established in 2009 and for the last 12 years, we have become one of the most prominent CNC block guard manufacturers in China. We have 3,4 and 5-axis CNC machining capabilities and offer a wide range of CNC applications. 

  • Vastly experienced and highly trained engineers, 
  • Maintain a high-precision tolerance level of ±0.01 mm for all products.
  • More than 50 types of materials and 10 surface treatments are available. 
  • Strictly control the production flow to ensure on-time delivery. 
  • Low MOQs, as few as 20 pieces
Get Our Best Quotation

Choose HDC As Your Trusted CNC Block Guard Manufacturer

HDC has earned a trusted and reliable reputation for CNC block guards around the world. We ensure the ultimate quality and durability of every product with the best material selection. Our highly functional and durable CNC block guards are one of the most sold products all over the world. 

We maintain a strict policy to maintain the quality of each and every CNC block guard. We run inspections in the various stages of the manufacturing process. We provide you with the weekly inspection reports and final production inspection reports. 

Custom Your CNC Block Guard With HDC

CNC Aluminium Car Engine Block Guard

Our CNC billet block guards are manufactured from high strength, corrosion-resistant 6061 aluminum alloy and high precision tolerance for easy and perfect installation.

cnc aluminum car parts

Precision CNC machined from 6061T6 billet aluminum, HDC CNC block guards are designed to allow maximum coolant flow to the head, had been tested in many cars.


CNC machined from Aluminum 6061, HDC CNC Engine block guard provides maximum coolant passage to the head, minimizing the risk of cracked cylinder sleeves, and head gasket failures.

CNC Billet Aluminum Engines Block Guard

HDC manufactures a wide range of universal CNC Block Guard, fitting for your different cars, made from Aluminum 6061, and the common colors are silver and orange anodizing

K20 CNC Block Guard

HDC Aluminum billet block guards are computer designed and CNC machined, which can make sure a best fitting when making installation.

CNC Block guard For Honda

Our CNC Blockguard is precision manufactured from Al6061, with perfect Anodizing finishing, has been tested perfectly in many engines.

Why Choose HDC For Your CNC Blockguard Supplier

HDC has gained a lot of experience over the years in manufacturing CNC block guards. This vast experience helps us to maintain the highest level of professionalism in production.HDC has a team of highly experienced engineers who are dedicated to creating the most optimum designs. They lead the highly skilled workers to follow the best manufacturing methods to produce precise CNC block guards.

We are an ISO9001 certified CNC machining company with all the necessary documentation to operate as a global OEM company.  As one of the industry leaders, we constantly search for new technology and innovation to produce the best quality CNC block guard for you.

CNC Block Guard

HDC Capabilities on Custom Your CNC Blockguard

5 Axis CNC Machining
5 Axis CNC Machining
cnc machining manufacturer
CNC Machining
Cnc Milling manufacturer
CNC Milling
cnc turning manufacturer
CNC Turning
metal laser cutting
Laser Cutting
rapid prototyping manufacturer
Rapid Prototyping
sheet metal fabrication service
Sheet Metal Fabrication
laser engraving parts
Laser Engraving

Custom Your CNC Block Guard with HDC

HDC ISO9001 Certificate

HDC CNC Block Guard

HDC CNC block guards are the best solutions to keep your engine block safe during high boost applications. Your engine block is at an increased risk of cracking failure at very high RPMs or high boost applications. HDC CNC block guards shield your engine from any incidents like those. 

Benefits OF HDC CNC Block Guards

  • Protect your engine at a micro-level and provides additional support to ensure its safety.
  •  comes with a ±0.01 mm tolerance level. Therefore, it perfectly fits with your engine block. You don’t have to mill them for installation.
  • We provide customized, You can choose the CNC block guard for any model engine.
  • easy to install.
  • manufactured with aluminum and provide endless durability. 
  • more resistant to wear.
  • offers a better cooling system.
  • offers increased power output efficiency.

As a leading CNC machining company in China, we also produce other CNC machine car parts. We manufacture seat brackets, shifter tops, shift knobs, fuel pump filter brackets, wheel spacers, wheel lug nuts, etc.  We follow the latest trends and maintain our excellent quality in every part. 

CNC block guards and other CNC auto parts are delicate products. As so, the package is a crucial factor for delivering your CNC block guards intact. We package every CNC block guard with proper cautions. 

We also offer flexible shipping supports to our global customers. You can pick your shipping route, and we will help you deliver your CNC block guards safe and sound. We also provide proper instructions to the freight forwarder for appropriate handling. 

We always welcome our clients to visit our factory and observe our working procedure. We have a world-class sales team to assist you with your project and skilled engineers to make your idea real. 

Besides CNC Block Guard, HDC also produces other CNC auto parts, such as CNC Shift Knobs, Custom Wheel Lug Nuts,  Custom Wheel Spacers, and other car parts.

Request a quote for your next CNC block guard project, and our block guard experts will contact you soon.

Get Our Best Quotation
Scroll to Top