Racetec low profile cooling heads
Klinik RC has through their Racetec brand released new lightweight billet machined low profile cooling heads for O.S. and other similar engines. Cast stock heads are very heavy (70-90g) and not very efficient dissipating heat from your engine. Machined aluminium has 2x the thermal conductivity vs cast and the head weighs in at 30-40% less (53g) than the cast counterpart, significantly lowering COG. Machined from billet stock aluminium they are anodised in black, pink, red or blue and finished with lasering on the Racetec logos.
Source: Klinik RC [klinikrc.com]