Grand National Hydroplane
Grand National Hydroplane, aka GNH or 7 Litre, is the largest non-supercharged Inboard hydroplane class. Powered usually by big block Chevrolet based engines (up to 511 cubic inches) with an hot rod racing engine(750+ horsepower), the highly competitive GNH's have 150 mph capability and throw 70-foot roostertails, thrilling drivers and fans alike.
|Minimum Weight:||2220 lbs.|
|Engine:||Big block automotive and marine based racing V-8 engines, up to 511 cubic inches|
|Fuel:||Racing gasoline per APBA specs|
|High Point Winner:|