Full Bore


Signature series performance 820cc engine rebuild.

Seadoo 787, 800, 785, 782cc performance motor (internal combustion engine) rebuild.

Signature series of performance engine rebuilds.

Your engine rebuilt as if it was Dan's personal engine.

A straight forward performance engine rebuild that keeps rock solid reliability, runs on pump (premium 91-93 octane) gas and no difficult carb mods. 

We start with the Sea doo 787,800 (stock form is 782cc) and take it to a 820cc’s.  There is no substitute for cc’s.

Precision fitted with Wossner forged racing pistons. Cylinders are ported, slightly increase the compression. Increased intake flow and control with modifying the rotary valve. Followed with atomizing the transfer fuel charge and swirl the head to control detonation and flat out increase performance that the average person can enjoy without having to revolve their life around trying to make it work. 

Wossner logo

Of course it goes without saying that the crankshaft is rebuilt to our Platinum specs and fitted with Teflon coated seals and rods with 4 oil feeders (vents) per rod.   After the crankshaft is reassembled and is trued to perfection and verified on a truing stand then final verification for fit and true running in your engine cases where it is supported on all of the bearing surfaces and verified for true in its real running conditions.

It’s simple, it's solid and it rocks!

Often copied but never duplicated!!!

Thats why all of the details aren't giving just enough.

Time is running out clock

Don't wait till Spring

Signature series performance 820cc engine rebuild.


At this time we aren't accepting complete engine rebuilds while we catch up with the current work load. Please consider our other options like rebuild kits and top end rebuild kits.


$75 return shipping to the 48 continental states.

Includes 2 year warranty and installation gaskets.

Add to cart complete payment and print a copy of the receipt and put in box with engine.  Shipping instructions are covered on our shipping page.  

Don't send  ignition coils, motor mounts, carburetor's, starter, sensors or exhaust manifold.   Severely corroded engines or holed cases may be considered unserviceable!!

Contact us

Email us at info@fullboreonline.com

 Phone 989-340-1321

Mon - Thur 9-5, Friday 9-4

Eastern time.

Shipping address (shipping only)

Full Bore
486 S Ripley Blvd
PMB #228
Alpena, MI 49707