2026 KPMI Full Catalog V1 - Flipbook - Page 90
HD TWIN CAM 88" 1999-2004
®
™
HARLEY-DAVIDSON
Valve Spring Kit • Lightweight Racing
KPMI P/N
20-20122
Type
Intake
Exhaust
Kit Includes
KPMI P/N
Type
Intake
*20-20132
Exhaust
Kit Includes
KPMI P/N
20-20060
Type
Intake
Exhaust
Kit Includes
KPMI P/N
Type
Intake
*20-20081
Exhaust
Kit Includes
KPMI P/N
20-21650
Type
Intake
Exhaust
Kit Includes
KPMI P/N
Type
Intake
20-21600
Exhaust
Kit Includes
KPMI P/N
Type
Intake
20-21750
Exhaust
Kit Includes
KPMI P/N
Type
Intake
20-21700
Exhaust
Max Valve Lift Installed Height
.600”
4
4
1.810”
CrSi Valve Springs
Titanium Retainers
Max Valve Lift Installed Height
.600”
4
4
1.810”
CrSi Valve Springs
H. T. Steel Retainers
Max Valve Lift Installed Height
.655”
4
4
1.865”
CrSi Valve Springs
Titanium Retainers
Max Valve Lift Installed Height
.655”
4
4
1.860”
CrSi Valve Springs
H. T. Steel Retainers
Max Valve Lift Installed Height
.650”
4
4
1.860"
CrSi Valve Springs
H. T. Steel Keepers Pr.
Max Valve Lift Installed Height
.675”
4
4
1.860”
CrSi Valve Springs
H. T. Steel Keepers
Max Valve Lift Installed Height
.650”
4
4
1.860"
CrSi Valve Springs
H. T. Steel Keepers
Max Valve Lift Installed Height
.675”
1.860”
Seat Pressure Open Pressure
163#
4
4
@ Lift
361#
.600”
H. T. Steel Keepers
H. T. Steel Basewashers
Seat Pressure Open Pressure
163#
4
4
@ Lift
361#
.600”
H. T. Steel Keepers
H. T. Steel Basewashers
Seat Pressure Open Pressure
190#
4
4
@ Lift
465#
.655”
H. T. Steel Keepers
H. T. Steel Basewashers
Seat Pressure Open Pressure
185#
4
4
450#
4
4
440#
4
4
450#
4
4
440#
.650”
VSK650S
@ Lift
.675”
AV&V P/N
Steel
Retainer
Version of
VSK675T
@ Lift
AV&V P/N
.650”
VSK650T
Titanium Retainers
H. T. Steel Basewashers
Seat Pressure Open Pressure
185#
AV&V P/N
H. T. Steel Retainers
H. T. Steel Basewashers
Seat Pressure Open Pressure
185#
@ Lift
H. T. Steel Retainers
H. T. Steel Basewashers
Seat Pressure Open Pressure
185#
.655”
H. T. Steel Keepers
H. T. Steel Basewashers
Seat Pressure Open Pressure
185#
@ Lift
450#
@ Lift
AV&V P/N
.675”
VSK675T
4
CrSi Valve Springs
4
Titanium Retainers
H. T. Steel Basewashers
4
H. T. Steel Keepers
4
* 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
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”
20-21300
Exhaust
H. T. Steel Retainers
4
CrSi Valve Springs
4
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”
20-21500
Exhaust
4
CrSi Valve Springs
4
H. T. Steel Retainers
Kit Includes
4
H. T. Steel Keepers (9° Degree Taper)
4
H. T. Steel Basewashers
KPMI P/N
72
order 650-557-2046
