Honda CRF 450 R SOHC 4v

Prices And Specifications Effective September 2023, 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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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.

Web Cam Inc. makes every effort to ensure the accuracy of the prices and specifications listed on our web site. However, prices and specifications are subject to change without notice. Prices listed do not reflect shipping and handling charges, nor sales tax (if applicable). WEB CAM INC. IS NOT RESPONSIBLE FOR ANY INACCURACIES.


VALVE
LIFT

DURATION

DURATION
@ 0.050"

GRIND NUMBER

REGRIND

HARD
WELD

NEW
BILLET

943/921

N/A

N/A

57-372

$605.00

Bolt in profile increases overall performance throughout RPM range.
Qty:

961/962

N/A

N/A

57-492

$605.00

Performance profile designed to increase mid and upper end. Requires Exhaust System, High Compression Piston, and Performance Valve Spring Kit. Check ALL clearances!
Qty:

208/921

N/A

N/A

57-502

$605.00

Race profile. Works well for TT, Super Motard or MX. Requires Exhaust System, High Compression Piston, Larger Diameter Followers, Shortened Valve Guides, and Performance Valve Spring Kit.
Qty:

493/729

N/A

N/A

57-592

$605.00

Performance profile designed to increase mid and upper end. Requires Exhaust System, High Compression Piston, Larger Diameter Followers, Shortened Valve Guides, and Performance Valve Spring Kit.
Qty:

493/921

N/A

N/A

59-542

$605.00

Performance profile designed to increase mid and upper end. Requires Exhaust System, High Compression Piston, Larger Diameter Followers, Shortened Valve Guides, and Performance Valve Spring Kit. Please Call Us At 951/369-5144 To Order 59-542

493/739

N/A

N/A

57-542

$605.00

High lift, short duration racing profile. Excellent throttle response. Requires High Compression Piston, Performance Valve Spring Kit, Shortened Valve Guides, and Larger Diameter Followers. Check ALL clearances!
Qty:

242/921

N/A

N/A

57-802

$605.00

Race profile designed for extreme acceleration with added mid and upper end performance. Requires Exhaust System, High Compression Piston, Larger Diameter Followers, Shortened Valve Guides, and Performance Valve Spring Kit. Check ALL clearances!
Qty:


Part Type

PART #

$45.00

28 mm x 20 mm x 3.0 mm Price (Each).
Qty:

$45.00

26 mm x 18 mm x 3.0 mm Price (Each).
Qty:

$75.00

CNC machined from billet alloy to exact tolerances for perfect fit. This tensioner can not back out allowing the cam chain to jump the sprockets as the auto adjusters have been known to do. In the CRF models fits (04-14). Price (Each).
Qty:

$120.00

The PRO Series is designed for the racer who frequently adjust his engine. The easy-access socket head adjuster screw is perfect for tight spaces. The interior o-ring design ensures that repeated adjustments will not eventually flatten the o-ring against the jam nut. The PRO Series design features an internal o-ring and custom-machined adjuster bolt. The bolt is broached with a 4 mm hex. Does not fit CRF 450 R (02-03) models, or the TRX 450 ER 06, and the 10-14 models as well. Price (Each).
Qty:

$375.00

Kit includes performance dual PSI springs, aluminum retainers, and bottom cups. OK to .500" valve lift. Price Per Set (4).
Qty:

$285.00

Kit includes performance single springs, hardened bottoms, and titanium retainers. Recommend for Flat Track use and Hi-Rev applications. OK to .394" Valve Lift. Price Per Set (4).
Qty:

$210.00

Kit includes performance dual springs and Titanium retainers. OK up to 0.440" valve lift. Check ALL clearances! Price Per Set (4).
Qty:

$370.00

Kit includes performance dual springs, Titanium retainers, and bottom cups. OK to .500" valve lift. Recommend using with Titanium valves. Price Per Set (4).
Qty:

$32.00

Standard size 36 mm CRF 450 R (02-08), +1 mm OS for the 450 X (05-17). Price (Each).
Qty:

$46.00

Oversized +1 mm to 37 mm for Honda CRF 450 R (02-08), +2 mm OS for the 450 X (05-17). Price (Each).
Qty:

$32.00

Oversized +1 mm to 37 mm, +2 mm OS for the 450 X (05-17). Price (Each).
Qty:

$77.00

Oversized +2 mm to 38 mm, +3 mm OS for the 450 X (05-17). Price (Each).
Qty:

$46.00

Standard size 36 mm Honda CRF 450 R (02-08), +1 mm OS for the 450 X (05-17). Price (Each).
Qty:

$46.00

Standard Size 31 mm for CRF 450 R (02-06), +1 mm oversize for CRF 450 R (07-08), CRF 450 X (05-17), TRX 450 ER (06-14), TRX 450 R (06-09). Price (Each).
Qty:

$32.00

Standard Size 31 mm for CRF 450 R (02-06), +1 mm oversize for CRF 450 (07-08), CRF 450 X (05-17), TRX 450 ER (06-14), TRX 450 R (06-09). Price (Each).
Qty:

$32.00

Standard size 30 mm. Price (Each).
Qty:

$46.00

Oversized +1 mm to 32 mm for CRF 450 R (02-06), +2 mm oversize for CRF 450 (07-08), CRF 450 X (05-17), TRX 450 ER (06-14), TRX 450 R (06-09). Price (Each).
Qty:

$77.00

Oversized +1 mm to 32 mm for CRF 450 R (02-06), +2 mm oversize for CRF 450 R (07-08), CRF 450 X (05-17), TRX 450 ER (06-14), TRX 450 R (06-09). Price (Each).
Qty:

$25.00

Made from special C630 Bronze material for longer wear. Standard size. Adds additional retainer to guide seal clearance. Must use for lifts above 0.385". Custom sizes available +.001, +.002, +.004, +.010. Price (Each).
Qty:

$25.00

Made from special C630 Bronze material for longer wear. Standard size. Adds additional retainer to guide seal clearance. Must use for lifts above 0.385". Custom sizes available +.001, +.002, +.004, +.010. Price (Each).
Qty:

$20.00

Replacement valve guide seals. Price Per Set (2).
Qty:

$15.00

Replacement valve guide seals. Price Per Set (2).
Qty:



General Information

Congratulations

Degreeing In Your Camshaft

General Valve Spring Information

Valve Spring Installed Height Information

Web Cam Full Catalog


Vehicle Specific Information

Honda CRF 450 R SOHC 4v Parts List.


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Phone: 951.369.5144