Page 38: of Maritime Reporter Magazine (November 1983)

The most fuel-efficient Diesel engine

The newest 645 marine Diesel of painstaking research and innova- our Diesel engines, from General Motors' Electro- tive technological improvements And now it's here. An engine that

Motive Division did not appear because of our absolute determina- is some 2.5% more fuel efficient than overnight. Emphatically not. tion, in the face of spiralingfuel our645EB.Which was 15%.more vQrhi/^0 fne»l mncnmntinn in fiipl pffiripnt t"han niir n4-r» r.A WhlCr

Fluorocarbon Lower •

Liner Seals

Model F Crankcase

Heavy Head Exhaust

Valve

Fire Ring Piston (turbo- charged engine; 14.5:1 compression ratio)

Laser Hardened port area of Cylinder Liner 1979

Redesigned Rocking

Piston Pin Increasing •

Load Capacity by 50%

I980

Nickel-Plated Lower

Liner Insert

Pre-Stressed Stainless

Steel Top Ring With —

Chr< inie Face and Sides 16.0:1 Compression

Ratio (turbocharged engine)