Do you want to have a higher top speed, better cruising speed, more pulling power for gear and hills? Then you need a 970 HO Engine. Following is a complete description of work performed and parts replaced in our engines.

    All of our engines are disassembled down to their component parts, cleaned, inspected, machine, cleaned again, and reassembled using only OEM Honda parts and seals. Our HO Engines use a Weisco piston developed by a fellow enthusiast and machined by Wiseco on a limited production run. Right now our engines using the Chanito Big Bore kit are the only PROVEN method to make your Ruckus go faster and harder then any other modification can provide while keeping the factory Honda engine. All engine blocks are machined locally here in Fort Collins, Colorado to exacting standards. Pistons are matched with blocks during production to give you the best performance. All mating surfaces are machined for a trouble free fit. The cylinder head is completely rebuilt with new seals, machining of valve seats, and a cleaning and centering of the exhaust port. Any bearings, pumps, seals, or other worn parts are replaced. Engines will always receive new seals, and valve stem seals. Valves are shimmed to recommended specifications. Please note that we are currently only building customer engines, so you will need to ship us your engine for the work to be done. Engines with over 1,500 miles or engines from 2002-2005 will also get a new crank and oil pump for an additional $150.

The 970 Engine and Head Program is available separately or as a complete Race Engine. We now offer the 970 HO head as a kit, the Big Bore bottom end as a kit, or we can build you a complete Race Engine. Prices are as follows:

Our HO Head is offered as a bolt on option for anyone wanting to increase the performance of either a big bore or standard bore engine. This head has been bench flowed, ported and polished to flow 25-30% better than stock. Comes complete with an HO Cam matched to flow 100% for our HO head. We will need a complete working and assembled head with rockers, cam, valves, springs, etc. for the work to be done. Upgraded 2008+ valves are available upon request for additional charge. Please note that it is very common for engines with some miles, or those ridden in dusty conditions to need new valves.

• Price Breakdown:

• Head Work - $300

• HO Cam - $185

• OEM or Cometic Head Gasket - $15 (49cc or 58cc)

• ARP Head Bolts - $60

• 970 HO Head - $560

970 HO Head - $575 USD Shipped to the 48 States

Complete Big Bore Bottom End/Short Block  - This engine block has been bored out to 58.1cc. Expect a dramatic increase in performance across the rpm range. Rebuilt with OEM parts

• Short Blocks with over 1,500 miles will also get a new crank and oil pump (this is NOT an exception) for an additional $150

• Please note, this engine does NOT come with a head, this is a short block ONLY, rotating assembly, crank, pump, cover, chain guides, chain, 2002-2005 style tensioner or what you supply (we recommend upgrading to the 2006+ style, 58cc head gasket included

• Big Bore Short Block - $700

Big Bore Short Block - $715 USD Shipped to the 48 States

Upgrades

ARP Head bolts $60

970 HO Cam $185

Full Race Engine (comes complete assembled and ready to run with ARP Head Bolts) - $1,200

• All of the recommendations above apply, feel free to e-mail any questions you may have

Full race engine - $1,200 USD Shipped to the 48 States

These engines are hand built and can take as long as 6-8 weeks for completion depending on parts available, machining, etc. Please keep this in mind when ordering an engine.

• Cores are only accepted if the engine came from a running scooter. If we cannot use your core to re-build another engine you must pay for the parts needed for repair not to exceed $200. This rarely happens.

• Engines with over 1,500 miles will also get a new crank and oil pump (this is NOT an exception) for an additional $150

• We can NOT accept cores with broken castings; this includes, head, block, mounting tabs, accessory mounts, etc.

• Also, heads that have been milled, decked, notched, or excessively ported cannot be accepted

• All engines are sold AS IS with no guarantee of performance or longevity, you are purchasing a racing part and it is sold as such

• PLEASE NOTE: Re-jetting is required, other performance modifications recommended (i.e. HO Cam, Intake, Exhaust, CDI, etc.)

• All engines are to be used for off-road or racing use ONLY. The displacement increase may affect your local laws regarding scooters. We are NOT responsible for any changes to legal requirements effected by the increase in engine size. Please follow local laws and do research before purchasing