AF Rayspeed Mammoth 200 cc Head with Cooling Surface 66 mm

Cylinder Head AF Rayspeed Mammoth 200 cc for Lambretta Mammoth 200 cc for Lambretta 125 LI/Special/DL/GP/150 LI/Special/SX/DL/GP/175 TV 2°-3° Ø 66 mm, with enlarged cooling surface The 'Mammoth' cylinder heads for Lambretta motors, produced by AF Rayspeed, have a noticeably larger circumference than the original items. This feature provides a noticeably larger cooling surface area and a more efficient heat transfer. They also include extra fins on the underside and a number of openings to improve the airflow across its surface. A special threaded hole is also featured to facilitate the fitting of a SIP/KOSO temperature sensor. They have a compression ratio of 10:1 with a 1.2mm squish band tolerance and original stoke measurement. The larger circumference of these cylinder heads makes a larger cylinder cowling essential. Conclusion : An effective step towards improved air-cooling for tuned motors. SIP - TIP : Do not forget to order a suitably-dimensioned cylinder cowling! (#15075200)