FastCounter by bCentral

1.

Find the Model and Year in Column 1.

2.

Move right to Columns 2 through 6 for the dimensions.

Data:

Measured (all are approximate or nominal):

Length:

Center of main race ID to center of piston pin bushing ID

Width:

Across the female rod big end

Roller:

OD of roller bearings

Race:

ID of main race

Pin:

OD of crank-pin

Motor

Length C-C

Female Width

Roller OD

Race ID

Crankpin OD

45 1932-73 R, W, G, WLA, WLC, WLD, etc.

7.4375”

1.375”

1/4”

1.500”

1”

WLDR, WR 1939-51 (lightening holes drilled in beam)

3/16

1.625

1-1/4

KR 1953-54 (as above, but no lightening holes)

K, KH 1952-56, 900 & 1000cc Sportster 1957-85

1.500

XR-1000 1983-84, Evo Sportster 883, 1100, 1200cc

6.926

Buell XB9, 984cc

7.270

KR 1955-67, KHR 1955-56

7.4375

5/16

2.125

1-1/2

KR 1968-69 (Low-Boy), XR-750

6.4375

S&S #7900 for Sportster (special length)

7.113

3/16

1.625

1-1/4

Carrillo for Sportster (special length)

7.800

Carrillo for Sportster (special length)

8.000

V-Series 1930-36

7.6875

1.750

1/4

1.500

1

E-Series 1936-39 (can use later 1-1/4”pin, 3/16”rollers & cages)

7.46875

1.625

1-1/8

U-Series 1937-39 (can use later 1-1/4”pin, 3/16”rollers & cages)

7.90625

E & F-Series 1940-72 (fully machined beam)

7.46875

3/16

1-1/4

F-Series & Evo 80 1973-* (machined “as cast”)

7.4375

U-Series 1940-48

7.90625

Jim's for big twin (special length)

7.690

Carrillo for big twin (special length)

8.000

Jim's for big twin (special length)

8.250

Carrillo for big twin (special length)

8.375

Click here for Harley-Davidson stroker flywheels

Knuckle, Panhead
1941-54

Pan, Shovelhead
1955-71

Shovelhead
1972-81

45 WL, trike
1937-73

74, 80” Flathead
1937-48

Sportster
1957-*

80”

84”

86”

88”

80”

84”

86”

88”

80”

4-7/16”

4-1/2”

4-5/8”

84”

86”

88”

92”

4-1/2”

4-5/8”

4-13/16”

"Harley-Davidson" name for reference purposes only. Not affiliated with Harley-Davidson Motor Co.

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