Most engine builders are at the hands of the manufacturers. So, you start ordering custom pistons, custom rods, etc. Be prepared to wait, because all manufacturers have adopted Just-in-time manufacturing methods. The supplier doesn't have the items in stock, so it has to be built. My Harrop TVS 2300 supercharger only took 3 weeks to acquire, but custom pistons and custom rods took months. I have talked to other custom engine builders, and they all seem to have the same problem with acquiring custom pistons. Also, be careful on what you are buying, because now only few companies are building crankshafts & rods in the USA.
Majority of the parts now are coming from overseas.
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Originally Posted by Vegas69
own most of the parts initially, and then fund it in increments as progress and labor are tendered. Tell them you want reasonable expectations up front due to you past experiences. Do your research and find recent references.
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Actually, it is rare to find a builder to use your own parts anymore. My local engine builder will do it, but he will recommend to you better quality parts. So, if you have a goal of 1000 HP, then you need parts that will survive in that engine. I talked to Brian Thompson on this and he only recommends USA made products. He has seen so many China crankshafts break, and it increases the costs of the engine, when you cut corners on parts.
Jeff