35 years of cast iron repair experience all
within the same family.

Blaine, MN: 763-780-5940
Portland, OR: 503-282-3909

The methods we use have their roots in over 35 years of cast iron repair experience within the same family. This experience combined with pride in workmanship and over 80 dedicated employees’ forms the basis for the excellent reputation DCW has earned in the field of cast iron repair.

Pre-heating to temperatures in excess of 1000 degrees F˚, then introducing new molten material has been the only repair method that has withstood the test of time. We are proud to have pioneered this process and continue to enjoy our leadership status in this industry.

At DCW we believe in five core values. It’s these values that drive the way we do business


Begins with state of the art tooling and machining. All tolerances brought to factory exact specifications. Only the highest levels of new components are used.


With more than 80 dedicated employees, our reputation has stood for 35 years as leader in this industry.


Products that your customer will have confidence in, backed by the best warranty in the industry at a fraction of the cost.


Nations most complete inventory of new and remanufactured cylinder heads and cylinder blocks. Most U.S. makes and models are in stock for immediate delivery.

Customer Service:

Contact our friendly and knowledgeable staff with any questions.


Q: Can you briefly explain your process?
A: Yes: Prior to the preheating, the area to be welded is ground out and specially prepared. Once the casting has reached the desired temperature, it is maintained there during the welding process. Using a gas fusion process, a specially trained welder begins melting and flowing cast iron rod into the area to be prepared. At the same time, the welder is melting the parent metal so the two metals flow together and integrally bond each other.


Q: Can you just weld the damage and we will do the rest?
A: No: After the welding process, we need to machine and install components so we are sure that all specifications are within proper tolerances and to assure the integrity of our repair.


Q: Are your products machined and ready to use?
A: All products are fully machined to factory specifications and ready for use.


Q: What is the warranty on a welded head or block?
A: We have an industry leading 12-month warranty on all the workmanship of our repairs.


Diesel Cast Welding