Change Currency: USD

Change Language: DeutschDanskEnglish (UK)English (US)EspañolFrançaiseעברית (ישראל)DutchTürkçe

Engine Rebuilding

Your Premier Engine Building Service in Apple Valley, CA. 

Engine Rebuilding Prices

KTM, Honda, Yamaha, Suzuki, Kawasaki, Husqvarna, Polaris

4-STROKE Complete Rebuild, 2000 and newer bikes only!

Tear down entire engine, inspect and replace parts as needed. This includes the transmission, clutch, crankshaft, oil pump, water pump, engine bearings, cam, cam chain, cylinder, head, valves and seats. On reassembly we deglazed the cylinder and install a new piston. De-carbon and rebuild the head with new valves, cut seats, replace guides and seals as needed. The crankshaft is rebuilt or replaced as needed. Prices below are with the engine out of frame.  We are a professional engine rebuild service and do not shortcut anything that is needed.  If yo want it done right we are the place for your engine rebuild or hop-ups.  We have a ton of experience with all brands and models of Dirtbike, ATV's, & UTV Engines.
Complete Engine Rebuild (labor only) includes 3 angle valve job.
Japanese  $800
KTM's  $825
Top End Rebuild Only (labor only) includes 3 angle valve job.
Japanese $675
KTM's $675
We also offer single oil system modifications for 2008-2011 KTM 450/ 530 XC-W and EXC Models.  Cases must be split for this modification and additional cost is $200.  Get rid of the terrible KTM split engine oil design.  This is the only way to get rid of the oil transfer problem known on these models.  We also offer upgraded Aluminum oil pump gears for your KTM 450/530 XCW/ EXC.  We have a ton of experience with this engine and know how to make it last.

2-STROKE Complete Rebuild

Tear down entire engine, inspect and replace parts as needed. This includes the transmission, clutch, crankshaft, engine bearings, power valve water pump and cylinder. On reassembly we deglazed the cylinder and install a new piston. The crankshaft is rebuilt or replace with new main bearings and seals.

Complete Engine Rebuild (labor only)

Japanese Bikes $450
KTM’s $470

Top End Rebuild Only (labor only)

Japanese Bikes $ 350
KTM’s $375
Single Cylinder UTV Engines $650
Twin Cylinder UTV Engines $800
Triple Cylinder UTV Engines $1000
Single Cylinder Valve Job $180
Twin Cylinder Valve Job $360
Triple Cylinder Valve Job $500
Machine Work
 Single Cylinder Valve Jobs $225
Install New Valve Guides  $50 each includes guide
Rebuild 4-stroke Crank $225 Labor
Rebuild 2-Stroke Crank $180 Labor
Shave KTM 2-Stroke 250/300 Cylinder Head $80
Diamond Hone Cylinders $40
Balance 2008-16 KTM 250/ 300XC Crank $250
Port and Polish 4-Stroke Cylinder Head $400
Port and Polish 2-stroke Cylinder $400
2016-2018 KTM 450 XCF/SXF 6-Speed Transmission Conversion ($300 Parts)
2016-2018 Husqvarna FC/FX 450 6-Speed Transmission Conversion ($300 Parts)
The prices above are labor costs only. Complete Rebuild price is with engine out of the frame. To R&R engine from the frame add $250 for most models.  A compete estimate and suggestions are made once the engine is torn down. Performance parts, porting and other engine modifications can be added and is usually less expensive when done during the rebuild. 
Offroad Engine Shipping Services:  For our out of area/ state customers we charge $120 Flat Rate Return Shipping of your engine with insurance.  Please ship in a 48 quart or larger ice chest for a 2-Stroke Engine and a 54 quart or Larger Ice Chest for a 4-Stroke Engine.  This is the best method for shipping and offers the best protection available.  These are very inexpensive from Walmart or Amazon. 
A complete estimate will be made upon engine disassembly. All parts that are needed will be replaced at additional cost upon your approval. This will include items such as damaged cylinders that need re-plating, case damage, head damage, gears, forks and clutch parts. These prices are calculated with the engine out of the frame.  If you bring compete motorcycle the price will be about $250 more for complete engine rebuilds where I must remove the engine to work on it. In frame includes removing and reinstalling the engine, oil and coolant change, air filter service, general servicing as it relates to the engine, greasing the swing arm pivot and test ride.
Warranty: Due to the nature of and use of race engines most shops and re-builders do not offer a warranty of any kind. Blais Racing Services offers a limited warranty that covers faulty workmanship for thirty days. Manufacturers can only warranty their part if it breaks. Engine damage and or seizure due to jetting, dirt or lack of oil or coolant are never covered. You must check you fluids before riding. Thoroughly break in and the test your engine within the thirty day period. If you have any problems, unexpected noises or concerns please call immediately.
Shoot us an email preferably or call today!  760-961-9127.  You will get the quickest response by email as its easiest for me here.




California Cancer and Reproductive Harm WarningWarning: cancer and Reproductive Harm -

These warnings are not an indication that these products are violating any safety standards or regulations.

However, as our products might be sold in the state of California, we are legally obliged to inform customers about the potential presence of these chemicals in our products.


Copyright© 1999 - 2021. All rights reserved to Blais Racing Services

eCommerce by CubeCart