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Moto Guzzi Sump Extension Big Block Engine with an oil filter inside sump - 750 to 1000 engines.

Heat treated Cast alloy and CNC machined for accuracy Drops oil level by 30mm away from the crankshaft. Sump sits lower into air draft aiding cooling and helps to keep oil temperature lower.

Supplied with, all bolts and 2 sump gaskets.

Cost $230.00.
Normally in stock.


Moto Guzzi Sump extension Big block engine without oil filter early 700,750 & 850T. Supplied only to order

Heat treated Cast alloy and CNC machined for accuracy Drops oil level by 30mm away from the crankshaft. Sump sits lower into air draft aiding cooling and helps to keep oil temperature lower. In addition a new oil pick up is supplied because the oil level is too low for the original oil pick up. Supplied with all bolts, gaskets and new oil pick up.

Cost sump extension, $220.00 Oil Pickup kit $125.00.


Moto Guzzi Sump extension Big Block with full flow engine oil cooler 750 to 1000 engines

This is a full CNC machined extension has all the same benefits as the standard extension but is 32mm thick with a full flow oil cooler outlet at the front. Oil is diverted on the return to the oil filter via an oil cooler and then returned to the oil filter. Oil outlets are - 5 hose outlets with 14mm x 1.25 thread in extension. These engines, when modified even slightly run very high oil temperatures, in the region of 125 to 130 degrees C sitting in the sump and this is before it actually enters the bearings which is to high. This extension could be used as an extension only minus the oil cooler but would require a minor modification.

Cost for extension: $495.00.
Bolts, gaskets and oil cooler not included.


Moto Guzzi Sump Extension for Small Block Engines

Heat treated Cast alloy and CNC machined for accuracy Drops oil level by 30mm away from the crankshaft. Sump sits lower into air draft aiding cooling and helps to keep oil temperature lower.

Supplied with mounting bolts, oil filter bolt & seal washer and filter spacer .

Cost $225.00.
Normally in stock.
(2 x sump gaskets additional $9.50 ea)


CNC machined alloy Rocker Bridge for Moto Guzzi round fin engines

These rocker bridges are currently under development and being tested. They are much lighter than the steel originals. They reduce valve train vibration and harmonics and give much better valve clearance control due to improved expansion rates by using similar materials. We hope to have these ready In the near future, however no firm cost has been set at this stage.


Moto Guzzi Titanium valve adjuster nuts 2V engines. 750 to 1000 engines

Titanium half width adjuster nuts reduce the weight in the valve train which is great for valve train durability STD. Also their strength is at least 50% greater than steel. A standard 13mm nut weighs 3.8 to 4.00grams each, Titanium nuts weigh 1.8grams each. If you are able to reduce the valve train by approximately 10grams, this means a valve spring has the potential to run at 300RPM higher without valve spring harmonics being an issue.

Cost for 4 Titianium nuts $70.00


DLC coated parts

These engines do suffer badly in the valve train area so to improve durability especially under race application I can now offering a DLC coating process. This a process that increases the surface hardness of wearing surfaces, it is only microns deep but can vastly improve the life of components. This is the same process that is used on all high performance race engines today. Currently I am getting valve tappets, rocker shafts and piston pins coated, but other parts can have this process applied.

Please contact for further information


Twin Spark Plug Conversions For Moto Guzzi Cylinder Heads

Cylinder heads for both the older round-cylinder and current square-cylinder engines (excluding the V-50 series engine) can be fitted with a second 10 mm spark plug. The additional plug benefits performance and fuel economy.

Note for maximum benefit the ignition timing needs to be adjusted to non-factory specifications.The cylinder heads you provide must be in reasonable condition because the drilling of the new spark plug hole requires precise fixing of the head in a jig.

The conversion of the round-cylinder heads is a much easier job because there is no need to relocate the oil galleries in the head. The round head conversion includes 2 shorter head studs to replace those which are present under the large plugs.

The square head kit shown comprises of 2 shorter head studs to replace those which are present under the large plugs, and braided oil hose to replace the existing hose. The new hoses attach to the brass union (which can be seen near the new spark plug) that is the new entry point for oil. As well, 2 spacers are provided to adjust the depth of engagement of the 10mm spark plugs.


Aprilia RSVR Velocity Stacks

Velocity Stacks for RSVR 1000 (and possibly other 1000 models). These stacks were developed to aid bottom-end torque, and provide approximately 10% torque increase throughout the rev range, at the expense of only 1 horsepower from the peak figure.

The stacks are machined from solid billet alloy and attach in the same method as the original equipment, with no modifications required.


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