complete Stage 6 "mk1" 70cc cylinder kit. 20+ hp out of the box with bolt on stage 6 components...high 20's with proper tuning, port adjusting and guru mastery. absolutely insane! that's half the hp of my truck.
The special adapter plate bolts to the engine case, the cylinder is
mounted via external bolts so that there are no bolts cutting through
the cylinder; this new design opens up all kinds of options for tuners
to modify and optimize their engine (porting) without being subject to
the usual restrictions. A Viton O-ring seal between adapter plate and
cylinder makes future readjustments unnecessary.
Regarding performance, the Stage6 R/T 70cc Cylinder Kit MKI reaches 20 to 22hp and can
easily be placed among the top 70cc high-end racing kits on the market.
The thermal properties are excellent - the combustion chamber is bolted
to the cylinder at five points, each coming with its own cooling
pocket. These highly critical areas are thus stabilized and the risk of
piston seizure is minimized.
The exhaust flange is attached with 3 bolts. It is suitable for Stage6 R/T exhausts, other flange types are available.
47.6mm diameter bore
39mm stroke
12mm wrist pin
85mm con rod length
includes everything in the photos plus a big sack o bolts, wrist pin and clips
Better than a significant other 
