Ski-Doo Heads, Big-Bore Kits, Porting, and Drop-in Pistons

CLICK HERE FOR SHIPPING INFO ON THE RK TEK MPEM  and ECM TIMING RE-CURVE

                800R to 860R Big Bore 180HP Conversion  

                                                                      &

                                           800R 165HP "Drop In"  Kit

     800R and 800 Series III DUAL RING replacement pistons and rings

	Heads for Ski-Doo Series III (600/700 and 800)and NEW Series IV (800R) Motors
	Heads for the 600, 700, 779, and 809 Rotax Triples
	Ski-Doo 800 (Series III) Twin 827cc (172HP) Big-Bore Kit  with DYNO Sheets
	Ski Doo Rotax 738cc  Big Bore Kits (700 and 600 H.O.)
	Ski-Doo 500SS and 600 Non-H.O.  664cc Big Bore
	Ski- Doo 800 Twin Stock Bore CUSTOM "drop-in"  Piston kit 160HP with Custom head
	Cylinder Porting