Max Power Inc. offers the largest selection of big bore kits for motorcycles and ATV's anywhere. Max Power is the home of the Ice Cube cylinder. Max Power has big bore and stroker kits available for both 2 stroke and 4 stroke engines. We are also your one stop engine performance shop selling stock displacement performance modifications, high compression pistons, Hot Cams, Web Cams, big bore kits, Hot Rods stroker crankshafts, Rossier exhaust systems, Jardine exhaust systems, Leo Vince exhaust systems, Wiseco pistons, CP Pistons and Cometic gaskets. Max Power Inc. also offers full service cylinder head work including porting and oversize valves from Xceledyne and Kibblewhite. Max Power is one of only 4 companys in the US that has a true in-house cylinder plating facility. Max Power can plate your cylinder with nickel silicon carbide called Apticote 2000, Max Power offers cylinder porting, head modifications, 2 stroke big bore kits, Stroker engines, supermini mods and is the only company that makes the YZ167. 2 Stroke and 4 stroke stroker crankshafts and crankshaft balancing are available too.
TRX 488cc Big Bore - ICE CUBE
TRX 491cc Big Bore/Stroker - STEALTH
TRX 500cc Big Bore/Stroker - STEALTH
TRX 511cc Big Bore/Stroker -ICE CUBE
TRX 511cc Big Bore/Stroker - STEALTH
TRX 522cc Big Bore/Stroker -ICE CUBE
TRX 522cc Big Bore/Stroker - STEALTH
Click here to see additional performance options for your TRX 450R!
| $549 | We Modify your cylinder |
| $75 | Exchange Cylinder |
| $899 | "Bolt On" - Includes Cylinder |
| $899 | Installed |
TRX468 STEALTH Specifications: |
Fits 2006-Current TRX450R |
| Bore: Yes | Stroke: No | Actual Displacement = 467.66cc |
| Engine Modifications Included: | |||||
| Cylinder: | Bored and plated with Apticote 2000 Ceramic coating | ||||
| Fuel Required: | 91 - 100 octane - Options Available | ||||
| Piston: | CP or Wiseco Piston - Options available | ||||
| Head: | No modification required | ||||
| Crankcase: | No modification required | ||||
Click Here to order this kit now!
| $950 | We Modify your cylinder |
| $75 | Exchange Cylinder |
| $1199 | "Bolt On" - Includes Cylinder |
| $1250 | Installed |
TRX488 STEALTH Specifications: |
Fits 2006-Current TRX450R |
| Bore: Yes | Stroke: No | Actual Displacement = 486.95cc |
Click Here to read what Dirt Wheels had to say about the TRX488 Ice Cube kit
| Engine Modifications Included: | |||||
| Cylinder: | "Ice Cube style" forged aluminum sleeve plated with Apticote 2000 Ceramic coating | ||||
| Compression: | Many options available customized to your preference. | ||||
| Piston: | Xtreme coated piston | ||||
| Head: | No modification required | ||||
| Crankcase: | No modification required | ||||
Notes: Can later be stroked to 511cc or 522cc
Click Here to order this kit now!
Click Here to read what Dirt Wheels had to say about the TRX488 Ice Cube kit
Click here to read the TRX488 vs TRX522 Dirt Wheels Comparison Article
| $1149 | "Bolt On" Kit - Includes Cylinder |
| $300 | Optional install and blue print |
TRX488 ICE CUBE Specifications: |
Fits 2006-Current TRX450R |
| Bore: Yes | Stroke:No | Actual Displacement = 486.95cc |
| Engine Modifications Included: | |||||
| Cylinder: | Billet Aluminum Cylinder plated with Apticote 2000 Ceramic coating | ||||
| Compression: | Many options available customized to your preference. | ||||
| Piston: | Xtreme coated piston | ||||
| Head: | No modification required | ||||
| Crankcase: | No modification required | ||||
Notes: Can later be stroked to 511cc or 522cc
Click Here to order this kit now!
TRX 491 Stealth Big Bore/Stroker
| $1059 | We Modify your cylinder |
| $75 | Exchange Cylinder |
$1320 | "Bolt On" - Includes Cylinder and Crankshaft |
| $1559 | Optional Install and Blue Print |
TRX491 STEALTH Specifications: |
Fits 2006-Current TRX450R |
| Bore: Yes | Stroke: Yes | Actual Displacement = 490.29cc |
| Engine Modifications Included: | |||||
| Cylinder: | Bored plated with Apticote 2000 Ceramic coating | ||||
| Compression: | 13:1 | ||||
| Piston: | Xtreme coated piston | ||||
Head: Crankshaft: | No modification required Aftermarket stroker crankshaft | ||||
| Crankcase: | No modification required | ||||
Notes: Balancing the crankshaft is highly recommended. Add $250
Click Here to order this kit now!
TRX500 Big Bore/Stroker STEALTH
| $2185 | We Modify your cylinder |
| $75 | Exchange Cylinder |
$2335 | "Bolt On" - Includes Cylinder and Crankshaft |
| $2575 | Installed |
TRX500 STEALTH Specifications: |
Fits 2006-Current TRX450R |
| Bore: Yes | Stroke: Yes | Actual Displacement = 500.85cc |
| Engine Modifications Included: | |||||
| Cylinder: | Bored plated with Apticote 2000 Ceramic coating | ||||
| Fuel Required: | Many options available customized to your preference. | ||||
| Piston: | Xtreme coated piston | ||||
| Crankshaft: | Max Power stroked and balanced OEM crankshaft with Falicon Knife Rod | ||||
| Crankcase: | No modification required | ||||
Click Here to order this kit now!
TRX511 Big Bore/Stroker - ICE CUBE
| $1869 | "Bolt On" Kit - Includes Cylinder and Crankshaft |
| $500 | Optional install and blue print |
TRX511 ICE CUBE Specifications: |
Fits 2006-Current TRX450R |
| Bore: Yes | Stroke: Yes | Actual Displacement = 510.51cc |
| Engine Modifications Included: | |||||
| Cylinder: | Billet Aluminum Cylinder plated with Apticote 2000 Ceramic coating | ||||
| Fuel Required: | Many options available customized to your preference. | ||||
| Piston: | Xtreme coated | ||||
| Crankshaft: | Aftermarket stroker crank | ||||
| Crankcase: | No modification required | ||||
Notes: Balancing the crankshaft is highly recommended. Add $250
Click Here to order this kit now!
TRX511 Big Bore/Stroker - STEALTH
$1399 We Modify your cylinder $75 Exchange Cylinder $1650
"Bolt On" - Includes Cylinder and Crankshaft $1899 Installed
$1650
TRX511 STEALTH Specifications: |
Fits 2006-Current TRX450R |
| Bore: Yes | Stroke: Yes | Actual Displacement = 510.51cc |
| Engine Modifications Included: | |||||
| Cylinder: | "Ice Cube style" forged aluminum sleeve plated with Apticote 2000 Ceramic coating | ||||
| Fuel Required: | Many options available customized to your preference. | ||||
| Piston: | Xtreme coated | ||||
| Crankshaft: | Aftermarket stroker crank | ||||
| Crankcase: | No modification required | ||||
Notes: Balancing the crankshaft is highly recommended. Add $250
Click Here to order this kit now!
TRX522 Big Bore/Stroker - STEALTH
Click here to read the ATV Sport TRX522 Review
| $2325 | We Modify your cylinder |
| $75 | Exchange Cylinder |
$2600 | "Bolt On" - Includes Cylinder and Crank |
| $2825 | Installed |
TRX522 STEALTH Specifications: |
Fits 2006-Current TRX450R |
| Bore: Yes | Stroke: Yes | Actual Displacement = 521.5cc |
Engine Modifications Included: | |||||
Cylinder: | "Ice Cube style" forged aluminum sleeve plated with Apticote 2000 Ceramic coating | ||||
Fuel Required: | Many options available customized to your preference. | ||||
Piston: | |||||
Crankshaft: | Stroked and balanced OEM crank with Falicon Knife rod. | ||||
Crankcase: | No modification required | ||||
Click Here to order this kit now!
TRX522 Big Bore/Stroker - ICE CUBE
Click here to read the ATV Sport TRX522 Review
Click here to read the Dirt Wheels TRX488 vs TRX522 Review
Click here to read the Dirt Wheels TRX522 "Maxed Out" Review
| $2749 | "Bolt On" Kit - Includes Cylinder, stroker crank and gaskets |
| $500 | Optional install and blue print |
TRX522 ICE CUBE Specifications: |
Fits 2006-Current TRX450R |
| Bore: Yes | Stroke: Yes | Actual Displacement = 521.5cc |
Engine Modifications Included: | |||||
Cylinder: | Billet Aluminum Cylinder plated with Apticote 2000 Ceramic coating | ||||
Fuel Required: | Many options available customized to your preference. | ||||
Piston: | |||||
Crankshaft: | Stroked and balanced OEM crank with Falicon Knife rod. | ||||
Crankcase: | No modification required | ||||
Click Here to order this kit now!
Note: Not all parts listed work with every kit in every application. We will recommend combinations to work with your specific application. Please call with any questions. Cylinder Head Porting Your 4-valve head, ported to application and bore/stroke. 5 angle seat grind and seals. Cylinder Head porting with +1 Titanuim Intake and +1 Stainless Exhaust Valves Drag/Dune/TT - Ported to application, 5 angle grind, +1 Ti Intake, +1 ST Exh, Spring Kit w/ Ti retainers, Light weight Rocker, new seals Cylinder head porting +1 Titanium exhaust valves Good all around set up - Ported to application, 5 angle grind, +1 Ti Exh, Spring Kit, Ti retainers, Light Weight Rocker, new seals, exh seats Cylinder Head porting with +1 Titanuim Intake and Exhaust Valves Titanium version of the +1 head above but it revs better with big cams. Cylinder head porting with +1 Ti Intakes and +2 Heavy Duty Ti Exhaust valves. This head is a work of art. They don't make them better than this. This head flows better than any other. Call with questions. TRX's have been known to power up the front wheels at 75mph in 5th gear with this head! Hot Cam Stage 2 Little Better than HRC Cam - good for low compression and mild engines. Hot Cam Stage 3 Good bottom and Midrange - As big as you can go w/o springs and guide work. Web Camshaft - Stage 1 Requires spring Kit and valve guides to be cut down. This is our favorite for MX and Offroad. Needs high compression. Web Camshaft - Stage 2 Requires spring Kit and valve guides to be cut down. This is our favorite for Drag racing and high rev applications. Needs High Compression. Adjustable cam gear Recommended for serious builds to insure proper cam degree. Shim Kit 3 shims each size, 1.2mm-3.5mm in .05mm increments Degree Camshafts (SOHC) Set cams lobe center to spec - labor only Intake Kit Foam Filter Billet intake ring with 2 stage foam filter Intake Kit K&N Billet intake ring with K&N filter (asphalt only) Exhaust System - Rossier Stainless System with aluminum silencer Spark Arrestor Supertrapp style end cap. 41mm FCR Carb TPS and Hot Start - More power everywhere 44mm Lectron Kit Drag Race Only - 522cc w/ big compression Hinson Clutch Assy Excellent set-up for MX and Offroad Hinson Clutch Basket Does not come in assembly. Lock-up clutch Recommended for Drag Race Only Install Big Bore Kit Labor to install and blueprint top end kit - valve adj inc. Install Stroker Kit Labor to install and blueprint stroker kit
Prices subjet to change without notice. Please call to confirm pricing.