Stage 1 Porting and Valve Seat Machining with Black Diamond Valve Train Kits Start at $650
Stage 2 Porting, Ampco Seats and Guides, Valve Seat Machining, and Xceldyne Valve Trains Start at $1,020

250/450F Cylinder Head Packages
Our Stage 1 & 2 packages can be performed to engine parts that you supply, or we can supply a new OEM head to perform the work to. We also stock thousands of valve train parts and are associate distributors for Black Diamond and Xceldyne parts. A Moose racing top end gasket and seal kit is supplied with both Stage 1 & 2 packages.
STAGE 1
Porting and texturing, baking soda blast-cleaning, assembly and valve clearance adjustment. Seals and top end gaskets included. $325 labor only, plus parts.
This service is for new OEM heads or new bikes that do not need valve replacement.
STAGE 2
Same as Stage 1 with a multi-angle Serdi valve job and original seats. $375
STAGE 3
Same as Stage 1&2 with installation of CV4 copper-beryllium valve seats and guide replacement especially for Xceldyne titanium valve train parts. $650 with seats and guides.
VALVE TRAIN OPTIONS
For riders interested in reliability we offer Black Diamond valve train parts made of stainless steel and titanium with double spring sets to prevent floating and matched to the stock valve seats. 4 stainless valves and complete spring kit with titanium retainers $375 also Ferrea, Faction, & Wiseco available. (POA price on application)
CV4 Xceldyne
For racers who maintain their bikes in a high state of tune and are looking for the most performance should choose Xceldyne titanium valves and springs. 4 Titanium DLC coated valves and PSI springs and low-friction seals $800
CLICK & PRINT 4-STROKE SERVICE FORM
PRICE MATRIX CHART FOR NEW HEADS BUILT
Built with your choice of valves, cams, and spares like pistons, gaskets, and big bore kits. All parts are new OEM from worldofpowersports.com All heads are assembled with new OEM clips and no shimming. We offer FREE valve shimming when you buy new cams and buckets.
2004-2008 Honda CRF250R
$525 Stage 1 package with new Honda head.
Add for valve train parts
Black Diamond $370 = $900
Xceldyne $800 = $1,325
2002-2008 Honda CRF450R
$525 Stage 1 package with new Honda head.
Add for valve train parts
Black Diamond $375 = $900
Xceldyne $800 = $1,325
2004-2008 Kawasaki KX250F/Suzuki RMZ250
$700 Stage 1 package with new Kaw head.
Add for valve train parts
Black Diamond $375 = $1,075
Xceldyne $800 = $1,500
2006-2008 Kawasaki KX450F
$700 Stage 1 package with new Kaw head.
Add for valve train parts
Black Diamond $375 = $1,075
Xceldyne $800 = $1,500
2005-2008 Suzuki RMZ450
$800 Stage 1 package with new Suzuki head.
Add for valve train parts
Black Diamond $375 = $1,125
Xceldyne $800 = $1,600
2001-2008 Yamaha YZ250F
$800 Stage 1 package with new Yamaha head.
Add for valve train parts
Black Diamond $425 = $1,225
Xceldyne $850 = $1,650
2003-2008 Yamaha YZ450F
$800 Stage 1 package with new Yamaha head.
Add for valve train parts
Black Diamond $425 = $1,225
Xceldyne $850 = $1,650
Telephone Orders Call 1-630-825-5645
Email: ericgorr@hotmail.com