HONDA
CRF450R/RX/WE 2017-20
STAINLESS VALVES
Cylinder Head Service Kit, 0.440″ In and 0.405″ Ex Lift, Honda®, CRF™ 450R / RX / WE, 2017-2020 # 30-33330
$764.90
1 in stock (can be backordered)
1 in stock (can be backordered)
Description
KPMI® is proud to introduce full CYLINDER HEAD SERVICE KITS. These kits contain all items to completely refresh and upgrade cylinder heads for popular Dirt / MX and Side x Side models with KPMI’s top quality racing valvetrain components.
Features:
• Save time money on your next cylinder head rebuild
• One package, everything you need for factory recommended valvetrain service
• Double your service life over OEM using KPMI® Valvetrain products
• Kitted with value added savings
Kit Includes:
• Dual Spring Titanium Retainer Valve Spring Kit, Which Allows for 0.440″ In. and 0.405″ Ex. Valve Lift
• Top End Gasket Kit by Cometic
• KPMI® C630 Bronze Standard Valve Guides
• KPMI® S.S. and Inconel® White Diamond® Valves, Stock Head Dia.
The product image may not be accurate on the page. Please refer to the description and specifications before purchasing.
| Installation Instructions | Click Here |
| Type | Intake / Exhaust |
| Retainer Material | Titanium |
| Intake Valve Lift | 0.440″ |
| Intake Installed Height | 1.340″ |
| Intake Seat Pressure | 50# |
| Intake Open Pressure | 162# |
| Intake @ Lift | 0.440″ |
| Exhaust Valve Lift | 0.405″ |
| Exhaust Installed Height | 1.360″ |
| Exhaust Seat Pressure | 90# |
| Exhaust Open Pressure | 220# |
| Exhaust @ Lift | 0.405″ |
| Valve Type | Intake / Exhaust |
| Valve Material | Intake- White Diamond® Stainless Exhaust- White Diamond® Inconel® |
| Coating | Hard Chrome |
| Intake Head Diameter | 38.00mm / 1.496″ |
| Intake Stem Diameter | 0.1960″ |
| Intake Tulip | 20º |
| Intake Overall Length | 3.080″ |
| Exhaust Head Diameter | 31.00mm / 1.220″ |
| Exhaust Stem Diameter | 0.1955″ |
| Exhaust Tulip | 23º |
| Exhaust Overall Length | 3.165″ |
| Remarks | Standard |
| Guide Type | Intake / Exhaust |
| Guide Material | C630 Bronze |
| Reference | See Figure 1 |
| Intake Outside Dia.: (G) | 0.4360″ / Std. |
| Intake (A) | 0.535″ |
| Intake (B) | 0.535″ |
| Intake (C) | 0.590″ |
| Intake (D) | 0.670″ |
| Intake (E) | 0.433″ |
| Intake (F) | 0.1960″ |
| Exhaust Outside Dia.: (G) | 0.4360″ / Std. |
| Exhaust (A) | 0.630″ |
| Exhaust (B) | 0.630″ |
| Exhaust (C) | 0.730″ |
| Exhaust (D) | 0.870″ |
| Exhaust (E) | 0.433″ |
| Exhaust (F) | 0.1955″ |
Additional information
| Weight | 1.5 kg |
|---|---|
| Dimensions | 25 × 25 × 8 cm |
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