2026 KPMI Full Catalog V1 - Flipbook - Page 86
HD EVO SPORTSTER 1200cc 2004-'21
®
™
HARLEY-DAVIDSON
Valve Spring Kit • Lightweight Racing
KPMI P/N
20-23500
Type
Intake
Exhaust
Kit Includes
KPMI P/N
Type
Intake
20-23600
Exhaust
Kit Includes
KPMI P/N
Type
Intake
20-23550
Exhaust
Kit Includes
KPMI P/N
Type
Intake
20-23650
Exhaust
Kit Includes
Max Valve Lift Installed Height
.650”
4
4
1.860"
CrSi Valve Springs
4
H. T. Steel Keepers Pr.
Max Valve Lift Installed Height
.675”
4
4
1.860”
CrSi Valve Springs
4
H. T. Steel Keepers
Max Valve Lift Installed Height
.650”
4
4
1.860"
CrSi Valve Springs
4
H. T. Steel Keepers
Max Valve Lift Installed Height
.675”
4
4
1.860”
CrSi Valve Springs
4
H. T. Steel Keepers
Seat Pressure
Open Pressure
@ Lift
185#
440#
.650”
H. T. Steel Retainers
4
Viton® Seals
4
H. T. Steel Basewashers
Seat Pressure
Open Pressure
@ Lift
185#
450#
.675”
H. T. Steel Retainers
4
Viton® Seals
H. T. Steel Basewashers
4
Seat Pressure
Open Pressure
@ Lift
185#
440#
.650”
Titanium Retainers
4
Viton® Seals
H. T. Steel Basewashers
4
Seat Pressure
Open Pressure
@ Lift
185#
450#
.675”
Titanium Retainers
4
Viton® Seals
H. T. Steel Basewashers
4
Valve Spring Kit • Lightweight Racing
KPMI P/N
20-20360
Type
Intake
Exhaust
Kit Includes
KPMI P/N
Type
Intake
*20-20364
Exhaust
Kit Includes
KPMI P/N
20-20350
Type
Intake
Exhaust
Kit Includes
KPMI P/N
Type
Intake
*20-20355
Exhaust
Max Valve Lift
Installed Height
.600”
1.860”
4
2
Installed Height
.600”
1.860”
2
Installed Height
.655”
1.860”
2
346#
.600”
Seat Pressure Open Pressure
148#
346#
@ Lift
.600”
H.T. Steel Retainers
4 CrSi Valve Springs 4
Viton® Seals
Ex H. T. Steel Basewashers
4
H. T. Steel Basewashers
Max Valve Lift
4
148#
@ Lift
Titanium Retainers
4 CrSi Valve Springs 4
Viton® Seals
Ex H. T. Steel Basewashers
4
H. T. Steel Basewashers
Max Valve Lift
4
Seat Pressure Open Pressure
Seat Pressure Open Pressure
185#
450#
@ Lift
.655”
Titanium Retainers
4 CrSi Valve Springs 4
Viton® Seals
Ex H. T. Steel Basewashers
4
H. T. Steel Basewashers
Max Valve Lift
Installed Height
.655”
1.860”
Seat Pressure Open Pressure
185#
450#
@ Lift
.655”
H.T. Steel Retainers
4 CrSi Valve Springs 4
Viton® Seals
2
Ex H. T. Steel Basewashers
4
H. T. Steel Basewashers
Note: These kits are supplied with 2 supplemental exhaust basewashers for use with the OEM exhaust guides.
* All KPMI® retainers are designed using the latest CAD software available. Further, the retainers are tested using 昀椀nite element analysis (FEA) to ensure the
retainer can endure high stress levels during operation. By using billet aircraft alloy material, heat treating it, and then employing our high powered design software,
KPMI® is able to maximize weight saving by incorporating a series of drilled holes in the retainers. These retainers are both strong and light, allowing signi昀椀cant
reduction to overall valvetrain mass, which is known to improve performance.
Kit Includes
4
Valve Spring Kit • "High Performance" Ovate Wire Beehive
Type
Max Valve Lift Installed Height Seat Pressure Open Pressure
@ Lift
Intake
.610”
1.860"
175#
400#
.610”
20-21400
Exhaust
4
H. T. Steel Retainers
4 CrSi Valve Springs 4
Viton® Seals
Kit Includes
4
H. T. Steel Keeper (OEM Style)
4
H. T. Steel Basewashers
KPMI P/N
Type
Max Valve Lift Installed Height Seat Pressure Open Pressure
@ Lift
Intake
.660”
1.860"
178#
371#
.660”
20-21550
Exhaust
4
H. T. Steel Retainers
4 CrSi Valve Springs 4
Viton® Seals
Kit Includes
H. T. Steel Keepers (9° Degree Taper)
4
H. T. Steel Basewashers
4
KPMI P/N
68
order 650-557-2046
