Features & Benefits:-
* ID # 12873
* Bore = 4.250″
* Stroke = 4.500″
* Fully CNC machined
* Balanced to +/- 1 gram
* Double forced pin oilers
* Forged from high strength 2618 alloy
* Designed for maximum pe
.250″ bore cylinders #DAY-80660
* Follow ring end gap and piston to cylinder clearances as per the supplied manufacturers instructions
* Pull the engine down first & measure the existing bore to determine if oversize pistons are required PRIOR
