Polini’s new cylinder for the Prebug zuma is here to change the game. No need to buy a Big intake manifold!
This kit includes a improved reed valve housing (cast into cylinder), 4 petal reed valve, 360° intake manifold for 17 to 21mm CP carbs.
New head gasket design – copper ring style head gasket. 0.2 and 0.3mm base gaskets included to adjust squish
Dual ring piston design
10mm wrist pin!
