2026 KPMI Full Catalog V1 - Flipbook - Page 31
BRP • SEADOO "1503" 4-TEC ENGINES 2006-'16
®
®
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Valve Spring Kit • Lightweight Racing
KPMI P/N
Type
Max Valve Lift Installed Height
Seat Pressure Open Pressure
@ Lift
Intake
91-91051
.390”
1.360"
75#
185#
.390”
Exhaust
Kit Includes
12
CrSi Valve Springs
This spring kit is designed speci昀椀cally for this supercharged application. This spring kit drops into the cylinder head, working with the O.E.M. components to
provide the correct pressure and harmonic range for this high performance supercharged power plant
Retainer Set • O.E.M. Replacement • H. T. Steel
KPMI P/N
Type
Material
Quantity
H. T. Steel
Pkg. of 12
Intake
91-91052
Exhaust
By utilizing FEA software and a special blend of heat treated alloy steel, it was possible to reduce mass while maintaining strength and wear resistance. These
retainers are intended as an OEM replacement and are completely compatible with the OEM springs, keepers, and basewashers. The spring shoulder diameter
has been designed to match the OEM retainer and spring as well as KPMI's high performance spring (P/N 91-91051), making this retainer your high performance
OEM alternative.
Valves • Black Diamond™ • Black Nitroneg Stems
KPMI P/N
Type
91-91062
Intake
38.00mm
91-91066
Exhaust
31.00mm
Stem Diameter
Tulip
O. L.
Remarks
1.496"
0.2350”
20º
3.555”
Standard
1.220"
0.2345”
25º
3.565”
Standard
Stem Diameter
Tulip
O. L.
Remarks
0.2345”
28º
3.555”
Standard
Head Diameter
Valves • White Diamond® • Inconel®
KPMI P/N
Type
91-91096K
Exhaust
Head Diameter
31.00mm
1.220"
Inconel® is classi昀椀ed as a “Super Alloy”, meaning that it is designed to survive under the most extreme
temperatures and pressures, where other valves will begin to burn, corrode, or completely fail. This is the
material of choice for high output engines running turbos, superchargers, nitromethane, or nitrous.
Valve Guides • C630 Bronze
B
C
D
E
F
G
Intake
0.405"
0.500"
0.625”
0.860"
0.465"
0.2350"
0.4360" / Std.
91-91070
91-91071
91-91072
91-91074
91-91079
+0.001”
+0.002”
+0.004”
+0.010”
0.405"
0.500"
0.785”
0.860"
0.465"
0.2345"
0.4360" / Std.
+0.001”
+0.002”
+0.004”
+0.010”
Exhaust
91-91080
91-91081
91-91082
91-91084
91-91089
Visit us at www.kpmi.us
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