Cylinder Head Service Kit, 0.450" Lift, Yamaha®, Various YZ™/ WR™ 450’s, 2014-'21
Cylinder Head Service Kit, 0.450" Lift, Yamaha®, Various YZ™/ WR™ 450’s, 2014-'21
SKU:80-82070
Regular price
$418.67 USD
Regular price
$418.67 USD
Sale price
$418.67 USD
Unit price
per
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Yamaha® YZ™ 450F 2014-'19
Yamaha® YZ™ 450FX 2016-'20
Yamaha® WR450F 2016-'21
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 Spring Kit, Which Allows for 0.435" Valve Lift
- Top End Gasket Kit by Cometic
- KPMI® C630 Bronze Standard Valve Guides
- KPMI® S.S. Black 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 |
| Valve Lift | 0.450" |
| Installed Height | 1.185" |
| Seat Pressure | 46# |
| Open Pressure | 155# |
| @ Lift | 0.450" |
| Valve Type |
Intake/ Exhaust |
| Valve Material | Black Diamond™ Stainless |
| Coating | Black Nitroneg |
| Intake Head Diameter | 37.00mm / 1.457" |
| Intake Stem Diameter | 5.5mm / 0.2158" |
| Intake Tulip | 20º |
| Intake Overall Length | 3.280" |
| Exhaust Head Diameter | 30.50mm / 1.201" |
| Exhaust Stem Diameter | 5.5mm / 0.2155" |
| Exhaust Tulip | 27º |
| Exhaust Overall Length | 3.380" |
| Remarks | Standard |
| Guide Type | Intake / Exhaust |
| Guide Material | C630 Bronze |
| Intake Reference | See Figure 1 |
| Intake Outside Dia.: (G) | 0.4352" / Std. |
| Intake (A) | --- |
| Intake (B) | 0.540" |
| Intake (C) | 0.560" |
| Intake (D) | 0.775" |
| Intake (E) | 0.432" |
| Intake (F) | 0.2160" |
| Exhaust Outside Dia.: (G) | 0.4352" / Std. |
| Exhaust (A) | --- |
| Exhaust (B) | 0.390" |
| Exhaust (C) | 0.760" |
| Exhaust (D) | 1.030" |
| Exhaust (E) | 0.432" |
| Exhaust (F) | 0.2155" |
| Unique Identifier No. | FR327789_01GAUSt |
