Swap

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Are there any problems swapping a seagrave engine for an original 1934 Pierce 12? Would it adversely affect the value? Are there any major visible differences? I am considering buying a car where this has been done.

Thanks. Jim Nicholson

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Most Seagraves engines are equiped with two spark plugs per cylinder, a special dual distributor and often different intake, exhaust manifolds and carburetion.

So yes there are many noticable differences for SOME Seagraves engines, but the engine could be converted to single sparkplug, and back to Pierce intake and exhaust..

YOU really need to get photos of the engine, engine compartment and post them so the 12 cylinder folks here can see what and if there are major differences.

Greg Long

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It’s not just the engine block swap that causes issues. Incorrect water pump, generator, starter, manifolds, water necks, distributor, carburetors, dip stick, fittings, the list is endless. In most cases, a fire truck engine in a car means the owner was too cheap to just do the correct motor and installed a incorrect and inexpensive motor to keep the car running. It can cost a fortune to get the car back to correct factory condition after a swap as listed. I know where you can get a correct block with correct numbers for a very reasonable price. Post photos of the engine here in detail, and you can find out what is the current status of the under hood engine. Ed

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As to value….. if the car was a twelve and now has a Seagrave motor in it….. I would think 15 to 20 percent as far as a price issue on a closed car, 33 percent or more if open. If it was an eight to twelve swap…. it’s anybody’s guess. The above does not include the cost of making all incorrect parts and components back to factory condition. Ed

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