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Read the condition. It reads FX which is not feasable to repair. Most of these I see for sale have been blown up and have damage in the webs or side of block. If they are rebuildable they are usually not sold or bring BIG BUCKS! Donovan is an excellent block and the choice in a lot of sprint cars.
I have been using Donovan 417 aluminum racing Chryslers since 1973 when they were first available in both my AA/Fuel Roadster and then in my AA/FC. Great Nitro engines especially when the iron Chryslers started to get scarce. Much stronger and a ton lighter than the stock Chryslers with a fully incorporated girdle for the mains that nearly makes it bullet proof. My Donovan 417 serial #44 was one of the earliest and with a 5/8`s stroked Moldex billet crank is 471 CI with dry sumped oiling.