I overhauled my front engine a year ago and my rear engine is getting overhauled as I write this. The engines are IO-360-GB1B for my 1973 C337G. Poplar Grove Airmotive in Poplar Grove, IL was my shop of choice. I live about 50 miles from their shop and have worked with them for 3 decades now with either overhauls or other general engine repair.
Their price for 2020 was $34,950. They gave me the same price in 2021 less $1000 for a multiengine discount. New limits, factory new top. The crank, cam, and case must all pass or price is higher. I know their prices have gone up since these quotes for these engines.
I have no complaints but they are absolutely buried with engines and have been for the entire time I have been working with them in the last year. I would plan a 3 month turnaround time. It might be a little less but likely not.
Ed
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