Yamaha YZ 450 F (10-12) DOHC 4v
** Prices And Specifications Effective May 2012, And Are Subject To Change Without Notice. **
When a core is required for an item, the core charge will automatically be added to your cart when you add the item. You must return your re-workable OEM core within 180 days of purchase in order to receive a core refund. If we do not offer a core for your application, you need to call us first, and send your core in to be reground / hardwelded.
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You may also call us to order any of the listed items.
All in stock orders placed on-line Monday - Friday before 3:00pm Pacific, will ship the same day.
Please be sure to read our Ordering Policies.
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Camshaft Profiles: |
VALVE
LIFT |
DURATION |
DURATION
@ 0.050" |
GRIND
NUMBER |
|
PART
NUMBERS |
|
|
.415/.360 |
268°/266° |
244°/244° |
45/297 |
|
Regrind
N/A
|
|
High lift short duration profile to increase throttle response. Works great for torque applications. Requires Performance Valve Spring Kit, Shortened Valve Guides, High Compression Piston, and Exhaust System. Check ALL clearances! Price Per Set (2). |
Hardweld
N/A
|
|
New Cam
81-412
$675.00 |
|
|
.395/.360 |
266°/274° |
242°/252° |
483/933 |
|
Regrind
N/A
|
|
Performance profile to increase overall power. Requires Performance Valve Spring Kit, Shortened Valve Guides, and Exhaust System. Check ALL clearances! Price Per Set (2). |
Hardweld
N/A
|
|
New Cam
81-422
$675.00 |
|
|
.415/.355 |
276°/282° |
252°/258° |
493/943 |
|
Regrind
N/A
|
|
Increases mid and upper end performance. Works well in motorcross / flat track applications. Requires Performance Valve Spring Kit, Shortened Valve Guides, High Compression Piston, and Exhaust System. Check ALL clearances! Price Per Set (2). |
Hardweld
N/A
|
|
New Cam
81-432
$675.00 |
|
|
.415/.363 |
276°/286° |
252°/263° |
493/216 |
|
Regrind
N/A
|
|
Mid and top end racing profile. Requires Performance Valve Spring Kit, Shortened Valve Guides, Exhaust System, and High Compression Piston. Check ALL clearances! Price Per Set (2). |
Hardweld
N/A
|
|
New Cam
81-442
$675.00 |
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Other Products: |
Valve Spring Kit With Titanium Retainers |
|
VC-Y83
$200.00 |
|
Performance dual valve springs, titanium retainers and hardened bottoms. OK to .450 valve lift. Price Per Set (4). |
|
Valves, Stainless Intake Standard Size |
|
IV-Y25
$36.00 |
|
Standard size 36 mm. Price (Each). |
|
Valves, Stainless Intake Oversized +1 mm |
|
IV-Y26
$36.00 |
|
Oversized to 37 mm. Price (Each). |
|
Valves, Stainless Exhaust Standard Size |
|
EV-Y25
$36.00 |
|
Standard size 30 mm. Price (Each). |
|
Valves, Stainless Exhaust Oversized +1 mm |
|
EV-Y26
$36.00 |
|
Oversized to 31 mm. Price (Each). |
|
Valves, Titanium Intake Oversized +1 mm |
|
IV-Y24
$150.00 |
|
Oversized to 37 mm. Price (Each). |
|
Valves, Titanium Intake Standard Size |
|
IV-Y23
$150.00 |
|
Standard size 36 mm. Price (Each). |
|
Valves, Titanium Exhaust Standard Size |
|
EV-Y23
$150.00 |
|
Standard size 30 mm. Price (Each). |
|
Valves, Titanium Exhaust Oversized +1 mm |
|
EV-Y24
$150.00 |
|
Oversized to 37 mm. Price (Each). |
|
Valve Guide, Shortened .070" Intake Standard Size |
|
VG-Y04-I
$15.75 |
|
Made from special C630 Bronze material for longer wear. Standard size. Adds additional retainer to guide seal clearance. Custom sizes available +.001, +.002, +.004, +.010 Price (Each). |
|
Valve Guide, Shortened .100" Exhaust Standard Size |
|
VG-Y04-E
$15.75 |
|
Made from special C630 Bronze material for longer wear. Standard size. Adds additional retainer to guide seal clearance. Custom sizes available +.001, +.002, +.004, +.010 Price (Each). |
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Vehicle Notes: |
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Installation Information: |
LINK |
Degreeing In Your Camshaft |
PDF |
JPG |
General Valve Spring Information |
PDF |
JPG |
Valve Spring Installed Height Information |
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