Components

Size

Material

Crankshaft
Crankpin diameter
Journal diameter

Class 30 gray iron

Thrust bearing area

2.66 in2

Class 30 gray iron

Main bearing

3¼" x 2"

Steel backed babbitt

Conn. rod center distance

8¼"

65-45-12 ductile iron

Connecting rod bearing

3" x 1-11/16"

Tri-metal

Connecting rod bolt

½"(4)

Grade 8 alloy steel

Crosshead surface

5-3/4" x 4-5/8"

Class 40 gray iron

Floating crosshead pin

2-1/2" x 4-5/32"

AISI C-8620

Connecting rod bushings

2½" x 2"

Tri-metal

Piston Rod

1-1/8" diameter

SAE series 4100 steel

Rod packing rings

Filled teflon cast iron backup rings

Pistons

Class 30 gray iron

Piston rings

Filled teflon

Cylinders

80-55-06 ductile iron

Cylinder head gaskets

Soft steel/Viton

Valve gaskets

Soft steel