• The new cylinder heads are designed to run on low octane fuel
• The narrow squish band width allows closer head to piston clearance for the best MSV ratio (maximum squish velocity).
• Two versions are available for each kit one standard, one for higher performance. The standard head would suit a standard cylinder using a box pipe or bolt on power pipes. Those those wanting a high performance head already altered for use with tuned / modified kit, with a power pipe, using 98 oct fuel, more retarded ignition larger carbs etc
• The new heads have a computer designed MSV at specific rpm peak for port timings.
• The heads have been re cast for better heat dissipation with finned area, more central mass to stop head warpage.
• Side plug head design has been retained for ease of use on the Lambretta, but the central combustion chamber gives better combustion process over offset standard design
• Narrow squish band design helps stop detonation and over heating of piston crown
• The narrow squish and low MSV ratio design is excellent for sustained higher rpm running of tuned engines.
• The cylinder head casting design also allows for centre plug machining should you wish, although this is for special order only.
• The all new cylinder heads are CNC machined, so the new design is replicated each time every time.
• The new cylinder heads also have some new forward thinking in them, allowing the next generation of Imola, Mugello, Monza and new high powered kit currently under test, to have extra bolt down design, which should completely eliminate the possibility in the leaking of gasket surfaces.

Cambridge Lambretta have been at the fore front of Imola, Monza and Mugello cylinder kits, helping to develop and improve them as we went along. Initially we started importing these kits in 1999, and we are now the main agent in the UK for the range of kits.

The Imola kits fit all 125/150/175 engine casings, and are probably the most powerful kit on the market for the smaller engine casings. A complete alloy cylinder, with Nicaisl lining, reed valve induction, and redesigned exhaust port (from the standard Lambretta). The kit produces from 14 to 22hp depending on specification, carb, exhaust and timing options chosen. The basic package of the Imola includes cylinder, piston, gudgeon pin, circlips, gaskets, studs and nuts, as well as the inlet manifold and reed valve assembly. We also produce full package options which include carburettor, cylinder head, exhaust for example.

The Monza kit is similar to the Imola, but this kit is designed for use on 200cc engine cases. Again an alloy cylinder with reed valve, all the parts are supplied for the conversion. Carburettors, and exhaust can be included in a tailor made package to suit your requirements. Two retail variants of the kit are available, 200 and 225. Many other sizes and options are available as a special order **see below for details, 215, 235, 240, 250cc sizes can be achieved with differing strokes of crank and cylinder sizes.

All standard Imola 186 and Monza 200 & 225 cylinder kits are designed to run on 58mm stroke crankshafts which is standard Lambretta. Both conrod length options are available i.e 108mm for Li, SX, GP and 116mm for TV type conrods. The differing Imola 200, Monza 215, 240 & 250 special order kits are mainly for use with the 62mm stoked crankshafts**. The carburettor exits on the opposite side to standard on all kits, if your Lambretta has a battery tray this will need to be removed and re welded to the other side of the frame. The Imola and Monza require large carburettors, we recommend one from the Dell'Orto PHBH range. On Series one and two machines there is enough room to run a remote filter, on all series 3 machines no air filter is used. All Mechanical parts within your engine will need to be checked and or replaced as need due to the high power output of these kits, more details of what we recommend can be found further below.

The cost of the longer stroked kits does typically work out more expensive then the standard kits, as these cylinders are supplied bare. No nicasil lining is carried out so that work can be carried out to ports, transfers and other such items tailoring the kit to your requirements, the cylinders are then sent for lining when all work is carried out.

Recommended options
Touring set up. Basic cylinder kit, with machined cylinder head to match. Carburettor 28mm Dell'Orto PHBH, exhaust either a clubman for standard looks, or the JL Road exhaust. This will give a good spread of power, achieving around 15 to 18bhp.
Fast road/ race set up. As above, but with the use of the Dell'Orto 30mm PHBH Powerjet and either JL Race exhaust or the Imola snail. Using the JL Race, This will achieve 18+ BHP, and give a good allround very quick set up. Using the Imola snail gives an engine that produces more power, but does so by allowing the engine to rev harder and longer and is considered Race spec.

What else will I need
As the Imola kit is basically designed for 125 / 150 / 175 scooters, on average these machines produce any thing from 5 to 8 bhp. With the Imola at minimum you should be making 13BHP, and upto 23BHP plus, so you can see the rest of your engine needs to be in very good shape. Monzas are the same, and dont forget any power output figure you have of Innocenti Lambrettas from brochures etc, the power was taken at the flywheel, our power quotes are from the rear wheel.
Click Here to view a list of parts and prices for the parts we would recommend you replace as standard.

Further Tuning
We offer further tuning and modifications to Imola & Monza cylinders. Although the standard Imola is one of the fastest options on the market for 125/150 engine cases, people always feel the need to go faster and push it further, well of course we can help! Although not in set levels or price structures, we can tailor a package to suit you. The following is a brief guide and outline.
Stage 1
The standard cylinder is taken and the transfer and exhaust ports are blended and polished, the exhaust port is matched to the exhaust manifold. This would involve either you sending your exhaust U bend or stub, or if we have the stub or U bend details on file (we do for all exhausts we sell) this is not needed. A cylinder head is machined specifically to your requirements, you choose touring spec or fast race spec. It is best to phone us and discuss your requirements on the cylinder head. Cost of the Stage 1 tune is £85.00
Stage 2
As per stage one, but additional work is carried out to your crankcase to make use of the larger transfer area of the Imola kits. Your engine casings are taken, de greased and vapour blasted. Extra alloy is then welded to the transfer ports, and a new top finger port is added. This top finger port promotes better mid range torque. All transfer and finger ports are them matched and blended to the shape of the Imola inlets both on the cylinder and the casing. This blending is carried out fully. This type of tune basically matches your ports to the Imola cylinder in the best possible way, many tuners would call this a stage 7, 8 or higher on a normal or other exotic type of cylinder

Questions / Top

Questions / Top

Questions / Top

Questions / Top

Questions / Top