All 1000 cc engines like that in the F4R have been tuned more and more not just to provide better performance, but also to better use the dynamics of four cylinders working in unison. This is why we increased the bore from 76 mm to 79 and left the stroke unchanged at 55 mm. Cubic capacity thus became 1078 cc - the maximum obtainable from this engine. This is where the MV Agusta racing department managed by Andea Goggi began to work. Their aim was to improve internal fluid dynamics by polishing ducts and working their magic on "chamfering the innards" to gain a few CV. The new combustion chamber geometry was part of an overall reworking of the heads where computer controlled equipment guaranteed work of the very highest order. The pistons were made lighter than those in the 1000 and con-rod geometry was changed. The real difference however lies in the timing system that was made from different sized exotic materials for each and every element. The intake and exhaust valves are still radial (unique MV AGUSTA figure), but are now titanium and the intake valves are now bigger measuring 31 instead of 29 mm. With the wider bore, changes were also needed to the camshaft profile. On the other hand, the valve bowls (still steel) were decreased in size to lose a few grammes weight. They were decreased from 28 to 26 mm but still have double springs. These bowls, along with the keepers, valve guides and valve seats are all made by Del West, the American market leader in this sector, and despite the exorbitant price of these components, they were perfect for a machine as exclusive as the F4CC. The weight saved by these higher working speed components led to improved engine "usability" not to mention the fact that they shaved 4 kilos off the weight of the F4CC engine as against the F4R. Other components that contributed to weight savings were the magnesium timing, gearbox, clutch, blow-by and alternator covers.