2026 KPMI Full Catalog V1 - Flipbook - Page 59
HD SHOVELHEAD 80" 1978-1983
®
™
1.950"
Stem
Diameter
49.53mm 0.3765"
Tulip
Radius
Angle
R0.234
23°
KPMI P/N
Type
Head Diameter
20-4194
20-4256
20-4195
20-4195S
20-4195-1
Intake
O. L.
Remarks
3.885”
OEM18078-80
Intake
2.000"
50.80mm
0.3765"
R0.234
23°
3.885”
Oversize
Exhaust
1.750”
44.45mm
0.3760"
R0.234
29°
3.810"
OEM18082-57
Exhaust
1.780"
45.21mm
0.3760"
R0.234
29°
3.820"
Oversize
Exhaust
1.8120" 46.02mm
0.3760"
R0.234
29°
3.820"
Oversize
Harley-DaviDson
Valves • Black Diamond™ • Black Nitroneg Stems
Valves • Black Diamond™ Valves • Fat Stem • Black Nitroneg Stems
KPMI P/N
Type
Head Diameter
Stem
Diameter
Tulip
Radius
Angle
O. L.
Remarks
20-4294
Intake
1.950" 49.53mm
0.3780"
R0.234
23°
3.885”
OEM18075-81
20-4295
Exhaust
1.750”
0.3775"
R0.234
29°
3.810"
Standard
Type
Max
Valve Lift
Installed
Height
Seat
Pressure
Open
Pressure
@ Lift
Same as
Sifton P/N
.600"
1.510"
152#
387#
.600"
3030
44.45mm
Valve Spring Only Kit • High Performance
KPMI P/N
20-2000
Intake
Exhaust
Outer Spring ID
Inner Spring ID
Solid Height
1.249"
0.975"
0.850"
Kit Includes
4
CrSi Valve Springs
Achieving the recommended installation height may require KPMI® retainer 20-4248, which is o昀昀set 0.070” compared to OEM.
Retainer Set • H. A. Aluminium
KPMI P/N
Type
Material
I/ Spring
Retainer Ø
O/ Spring
Retainer Ø
Taper Angle
Quantity
H. A.
Aluminium
0.975"
1.255"
15°
Pkg. of 4
Intake
20-4248
Exhaust
This retainer is o昀昀set 0.070" when compared to OEM.
Valve Guide Seals • PC Style
3/8"
O.L
0.518"
Seal O.D.
0.650"
Seal Style
6
Designed for these guide specs
A
0.562”±0.002”
B
---
C
---
Type
D
0.375”
Intake
Exhaust
Part Number
Quantity
Quantity Discount
*71002-4
*71002-8
*71002-16
*71002-50
*71002-100
Pkg. of 4
0%
Pkg. of 8
0%
Pkg. of 16
Less- 10%
Pkg. of 50
Less- 15%
Pkg. of 100
Less- 20%
*To use the above seals in this application, it is required to modify the guides with a 0.562" Ø x 3/8" Pilot seal cutter. Please refer to Goodson
part number VSC-562375. www.goodson.com
Visit us at www.kpmi.us
41
Stem Diameter
