Yamaha YFZ 450 (04-09) DOHC 5v

** 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 do NOT need a PayPal account to shop with us, you can use your credit card.
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.

Camshaft Profiles:

.355/.338

276°/281°

252°/257°

187/159e

Regrind

N/A

Bolt in profile increases overall performance throughout RPM range. Requires performance valve spring kit if using stainless valves. Price Per Set (2).

Hardweld

80-561

$532.00 + core

New Cam

80-562

$746.00

.355/.355

276°/282°

252°/258°

187/943

Regrind

N/A

Race profile designed to increase mid and upper end performance. Maintains excellent torque. Requires performance valve spring kit if using stainless valves. Price Per Set (2).

Hardweld

80-611

$532.00 + core

New Cam

80-612

$746.00

.355/.355

282°/282°

258°/258°

943

Regrind

N/A

Race profile designed to increase mid and upper end performance. Requires performance valve spring kit if using stainless valves. Price Per Set (2).

Hardweld

80-571

$532.00 + core

New Cam

80-572

$746.00

.356/.356

282°/282°

262°/262°

963

Regrind

N/A

Race profile designed to increase mid and upper end performance. Requires High Compression Piston / Big Bore, Exhaust System, and Performance Valve Spring Kit. Check ALL clearances! Price Per Set (2).

Hardweld

80-661

$532.00 + core

New Cam

80-662

$746.00

.356/.363

282°/286°

262°/263°

963/216

Regrind

N/A

Made for TT applications. For race engines only. Requires High Compression Piston 14:1, Performance Valve Spring Kit, and Exhaust System. Check ALL clearances! Price Per Set (2).

Hardweld

81-181

$532.00 + core

New Cam

81-182

$746.00

.360/.338

266°/268°

244°/247°

297/192

Regrind

N/A

Torque profile designed to give excellent throttle response. Requires performance valve spring kit if using stainless valves. Price Per Set (2).

Hardweld

80-581

$532.00 + core

New Cam

80-582

$746.00

Other Products:

Cam Core

CC-Y22

$297.00

Please specify year and model when ordering. New cams are sold outright. No core required. Price Per Set (2).

Cam Gear, Adjustable With Adaptors

CG-Y45

$210.00

Use with all WEB CAM profiles for precise engine tuning. Kit includes adjustable sprockets, adapters, cam bolts. Price Per Set (2).

Valve Spring Kit With Aluminum Retainers

VC-Y07

$218.50

Kit includes performance single PSI springs, Aluminum retainers, and bottom. OK to .400" valve lift. Price Per Set (5).

Valve Spring Kit With Titanium Retainers

VC-Y46

$205.00

Kit includes performance dual springs, Titanium retainers, valve guide seals, and bottoms. Required if using stainless steel valves. OK to .380 valve lift. Price Per Set (5).

Valve Spring Kit With Titanium Retainers

VC-Y49

$300.00

Kit includes performance single PSI springs, Titanium retainers, and bottom cups. OK to .400" valve lift. Price Per Set (5).

Valves, Stainless Intake Center Standard Size

IV-Y09

$38.00

Standard size 27 mm. Price (Each).

Valves, Stainless Intake Standard Size

IV-Y06

$38.00

Standard size 27 mm. Price (Each).

Valves, Stainless Intake Center Oversized +1 mm

IV-Y10

$38.00

Oversized to 28 mm. Price (Each).

Valves, Stainless Intake Oversized +1 mm

IV-Y08

$38.00

Oversized to 28 mm. Price (Each).

Valves, Stainless Exhaust Standard Size

EV-Y11

$38.00

Standard size 28 mm. Price (Each).

Valves, Stainless Exhaust Oversized +1 mm

EV-Y12

$38.00

Oversized to 29 mm. Price (Each).

Valves, Titanium Intake Center Oversized +1 mm

IV-Y15

$160.00

Oversized to 28 mm. Price (Each).

Valves, Titanium Intake Oversized +1 mm

IV-Y14

$160.00

Oversized to 28 mm. Price (Each).

Valves, Titanium Intake Center Oversized +2 mm

IV-Y18

$160.00

Oversized to 29 mm. Price (Each).

Valves, Titanium Intake Oversized +2 mm

IV-Y17

$160.00

Oversized to 29 mm. Price (Each).

Valves, Titanium Exhaust Oversized +1 mm

EV-Y16

$160.00

Oversized to 29 mm. Price (Each).

Valves, Titanium Exhaust Oversized +2 mm

EV-Y18

$160.00

Oversized to 30 mm. Price (Each).

Valve Guide, Shortened .030" Intake Standard Size

VG-Y02-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 .030" Exhaust Standard Size

VG-Y02-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).

Pictures:

Installation Information:

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Last update: May 16 2012

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Phone: 951.369.5144