R-80

 

Horsepower

75 @ 2150 rpm

Weight

122 lbs.

Displacement

180 cubic inches

Bore

3.625 inches

Stroke

3.5 inches

Compression Ratio

7:1

Intake Valve

1.8 in.

Exhaust Valve

1.2 in.

Valve Lift (all)

0.250 in.

Valve Clearance

0.014 in.

Ignition Timing Start

TDC

Ignition Timing Run

38 deg. btc

Oil Pump Capacity

5.5 qt./min. @ 2150 rpm

Scavange/feed pump

8:3 ratio

Main/thrust bearings

Tapered roller

Master rod bearings

Two row ball

Link rod bearings

Plain journal bearings