2026 KPMI Full Catalog V1 - Flipbook - Page 141
HONDA CRF 450R 2002-2008
®
™
KPMI P/N
Description
Speci昀椀cation
30-30640
30-30220
30-30225
30-30200
30-30210
Spring Kit
Intake, Standard Valve
Exhaust, Standard Valve
Intake, Standard Valve Guide
Exhaust, Standard Valve Guide
30-33351
Gasket Kit
Includes: Ti Retainers, CrSi Valve Springs, H.T. Steel Basewashers
Valve • Black Diamond™ • Black Nitroneg Stems
Valve • Black Diamond™ • Black Nitroneg Stems
Valve Guide • C674 Bronze
Valve Guide • C674 Bronze
Includes: Head Gasket 96mm (1), Base Gasket (1), Exhaust Gasket (1), Cam Chain Tensioner Gasket (1),
Cam Chain Tensioner O-ring (1), Exhaust Valve Seals (2), Intake Valve Seals (2), Water Pipe O-ring (1), Cam
Chain Tensioner O-Ring (1)
HONDA
Components • Replacement • Cylinder Head Service Kit for CRF 450R 2007-2008
Valves • Black Diamond™ • Black Nitroneg Stems
Stem Diameter
Tulip
O. L.
1.417"
0.2158"
20º
3.315"
Standard
1.457"
0.2158"
20º
3.325"
Oversize
38.00mm
1.496"
0.2158"
20º
3.325"
Oversize
Exhaust
31.00mm
1.220"
0.1957"
20º
3.310"
2002-'06 Std.
Exhaust
32.00mm
1.260"
0.1957"
20º
3.320"
2002-'06 O/S
Exhaust
30.00mm
1.181"
0.1957"
20º
3.310"
2007-'08 Std.
KPMI P/N
Type
Head Diameter
30-30220
30-30221
30-30222
30-30223
30-30224
30-30225
Intake
36.00mm
Intake
37.00mm
Intake
Remarks
Must use Kibblewhite® Lightweight Valve Spring Kits when installing Black Diamond™ Valves.
Valves • O.E.M. Replacement • Titanium • Stainless
KPMI P/N
Type
Head Diameter
Stem
Diameter Tulip
O. L.
Material
Rep. OEM P/N
30-30220T
Intake
36.00mm
1.417"
0.2158"
20º
3.325"
Titanium
14711-MEB-670
30-30223
Exhaust 31.00mm
1.220"
0.1957"
20º
3.310"
30-30225
Exhaust 30.00mm
1.181"
0.1957"
20º
3.310"
2002-'06
Stainless
2007-'08
Stainless
14721-MEB-670
14721-MEN-A00
Note: These valves are intended as O.E.M. replacement valves and are completely compatible with the O.E.M. spring kits. However, experienced engine
builders, who are running aggressive camshafts or higher than factory RPM’s may 昀椀nd the combination of the O.E.M. Style Valve and KPMI’s Lightweight Racing
Spring Kits advisable. All titanium valves are (Tensilite®) PVD CrN coated, and all stainless valves are Black Diamond™ coated.
Valve Guides • C674 Bronze
A
B
C
D
E
0.495"
0.520"
0.650”
0.760"
0.480"
F
G
0.2155" 0.4360" / Std.
+0.010”
0.580"
0.605"
0.740”
0.890"
0.480"
0.1955"
Intake
Exhaust
30-30200
30-30209
0.4360" Std.
30-30210
+0.010”
30-30219
Valve Guide Seal Kits • High Performance
O.L
Seal
O.D.
Seal
Style
5.5mm
0.320"
0.440"
4
Exhaust Stem
Diameter
O.L
Seal
O.D.
Seal
Style
5.0mm
0.350"
0.405"
4
30-30550
Kit Includes
Designed for these guide specs
A
B
C
0.358”±0.005”
0.320”
0.115”
Designed for these guide specs
A
B
C
0.340”±0.005”
0.303”
0.125”
2
Intake Viton® Seals
2
D
0.225”
D
0.230”
Exhaust Viton® Seals
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Part Number
Intake Stem
Diameter
