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Gary J. Reed


Any question about welding cast iron by any means and all alternatives to welding including metal stitching which is the way it is done by professionals who have common knowledge of the realities of repairing cracks and other damage. I can provide anyone with the best method to choose for any situation. I can also answer any questions about repairing damaged threaded bolt holes for any application using thread repair inserts.

Experience in the area

40 years of professional cast iron welding include furnace brazing at 1000 deg F preheat, fusion welding at 1500 deg. F preheat, metal spraying at low and high temp preheat. Inventor of many products and proceedures for repaing damaged castings. I am co-owner and CEO of LOCK-N-STITCH Inc. which is the world leader on these subjects. I have trained hundreds of professionals who rely on being able to repair cast metals permanantly and proficiently without failures as part of their daily jobs. I never recomend electric welding on cast iron because it only works in a very small percentage of repairs attempted. My misssion is to distroy the myths about welding cast iron and help people make the right decision based on real successes through knowledge and products that can allow almost anyone to make permanant repairs without welding. Here is my website,


American Welding Society, Automotive Engine Rebuilders association, Production Engine rebuilders Association, Vistage International,


Engine Professional Magazine, Performance Racing Magazine, Engine Builder Magazine (See Website)


High school TI welding class for two years. Three years of cast iron welding aprenticeship, Two years of engineering school, (no degree). 40 years of being self employed specializing in welding and metal stitching to repair cast metals. Thousands of hours doing research, testing and developing repair methods.

Awards and Honors

Inc. 5000 honoree for thre years running, 16 US and many international patents issued and three more pending.

Past/Present Clients

Caterpillar, Cummins Engine, Detroit Diesel, John Deere, Volvo, Mack Truck, International Truck, Renault, Wartsila, MAN B&W, General Electric, Generl Motors, Chrysler, Ford Motor, Cooper Tire and Rubber, Chevron oil, Ocidental Petroleum, Connoco Phillips, Prax-Air, Maui Electic, Tesoro, Shell Oil, Pacific Gas and Electric, Southern California Gas, Us Navy, Us Coast Guard, US Army and US Air Force

What do you like about this subject?

It has been my life's work and am very passionate about continueing to develop new and better ways to repair damaged castings.

What do you still hope to achieve/learn in this field?

Stronger and easier ways to repair castings that the average person with mechanical skills can use to solve these problems quickly and permanantly.

Something interesting about this subject that others may not know:

Cast iron is actually a very good and strong metal for engine blocks, cylinder heads and industrial machinery parts. It is not a metal that is used because it is cheap.

Something controversial or provocative about this subject

Arc welding on cast iron the way it is promoted by the rod manufacturers usully causes more problems than it solves and often does so much damage that the part is scrapped and replaced with a new one. Arc welding with high nickle electrodes is taboo for most professionals who have learned the hard and expensive way.

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    K = Knowledgeability    C = Clarity of Response    P = Politeness
David12/21/15101010Thanks Gary. I would like to think .....


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