Keith Walters (longtime customer from the U.K) with a motor we helped him with.

Keith's side car racer is far from a 836cc motor (970cc) but we wanted to show his efforts on the 836cc piston page of the website.
These 836cc piston choices are lighter, dimensionally perfect and are offered with various coatings for different applications.  




"Billet" 65mm (836cc) Lightweight Wiseco Cycle X Pistons (K Models)

We are proud and excited to release these Billet Wiseco pistons with our race proven Cycle X domes. Without blanks or forgings to achieve the race proven dome configurations, the pistons needed to be billet and built from scratch.

Why Billet?
Without blanks or forgings to achieve the race proven dome configurations, the pistons needed to be billet and built from scratch.
Secondly, Billet pistons can be machined on the undersides to reduce even more weight and run shorter wrist pins.
Conclusion, world class pistons for your five decade old hot-rod Honda.

These pistons have a bare weight of 161 grams and have a Armor Glide skirt coating, tool steel wrist pins, 2559XA ring sets, .00190 piston to cylinder wall clearance, and larger and deeper valve pockets for big valves and big camshafts.

Depending on the year or combustion chamber modifications, the compression ratios are in the 11.5 to 12.5 range. Your camshaft selection will affect or alter this figures.

Note: The compression ratios was determined with the timing edge of the piston flush with the top of the cylinder.

Note: The cylinder heads are stock cc combustion chambers without milling or surfacing and a .040 head gasket.

69-76 "K" model 22cc cylinder head combustion chambers will have approx 12.8 ratio
77-78 "K" model 24cc cylinder head combustion chambers will have approx 12.1 ratio

ENP-BILLET836-K     $699.95






Honda 750 SOHC 69-78 836cc
("K" Models)

Manufactured by Wiseco.

10 1/4 Compression. These pistons have the valve cutaway machined in them for bigger cams. Without this cutaway, you can only use smaller cams without much power gain.
These 836cc (65mm) pistons have been used for probably 4 decades. Good stuff!

Piston Kit Includes:
Pistons, Rings, Circlips, & Wrist Pins

ENP-836-K     $549.95

New price: $489.00




Big Bore Combustion Chamber Blending

This combustion chamber service will perfectly match your larger cylinder bore to your combustion chamber.

This procedure is done to any bore size and is accomplished on our milling machine and then hand finishing for extreme accuracy.

$129.00 (Parts and labor)












Thermo Barrier Coating

We are reintroducing or reminding the public about thermo barrier coatings for pistons and combustion chambers. This is the same coating used on our vintage heavyweight super bike (AHRMA) which had remarkable long intervals between tear-downs. 

Here's one of my favorite tests from years ago...
The dome coatings in particular were tested on a hot rod v-twin motor (Harley) that started when the owner was super skeptical about the claims of thermo barrier coatings.

Here's what he did...

The front cylinder piston was uncoated. The rear cylinder piston was coated with the above mentioned process. During the running process, the heat sensors showed the rear cylinder 65 degrees cooler. True story. We have noticed the benefits of these coatings many, many years ago and have decided to stock thermo barrier pistons and cylinder heads for the performance minded.

Piston coating: $139.00

Combustion chamber coating: $139.00

Call to order.






If you're in need of tech help, refer to our pistons tech tips page.




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NOTE: As of July 1st, 2018, an extended goods and services tax (GST) has been applied to all Australian consumers buying overseas, charging an extra 10% in taxes to us with each purchase. To ensure that you can continue to purchase from us in Australia and we can provide our parts at our usual lower cost, please contact us at the email below if interested in any particular parts so that we can make a special shipping arrangement for you.


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The purchaser shall assume all legal, personal injury risk and liability and all other obligations, duties and risks therewith.
There is no warranty on High Performance products.

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Cycle X Global Headquarters

6246 US Hwy 51 South

Hazelhurst, WI 54531

Phone: 715-356-7346