Zestaw tłoków KB Performance, 96″/103″ do 110″ Twin Cam. +.030″

Forged big bore conversion piston set. Used for converting 96″ (3-3/4″ bore) and 103″ (3-7/8″ bore) to 110″ (4″ bore) big bore. With dished piston domes. Works with all stock cylinder heads; 96″ and 103″ with 85cc chamber and SE; MVA and CVO with 95cc chambers. 9.5:1 CR with stock 96″/103″ 85cc head. Piston weight 350gr. Piston pin weight 89gr. Piston pin dia. .927″ / offset. Head type: Dish with +13.3cc. Compression height 1.086″. Bore 4.000″. Stroke 4.375″ (4-3/8″). Rod length 7.667″. Cyl. length 4.938″. Note: Will not work as bolt-in with OEM H-D 4″ big bore conversion cylinders in OEM 96″ & 103″ crankcases. The cylinders will hit a small step in the crankcase. Also clearance between piston skirt and crankcase must be checked at bottom dead center. Cases with a large cast-in bump; just below the machined area for the cylinder sleeve; must be machined for adequate piston skirt to crankcase clearance. This is on both front & rear cylinder exhaust sides of the crankcase. Note: Will not fit 110″ CVO models. Note: All KB forged pistons come equipped with offset wrist pins / piston pins. There is a front and rear section on the piston and it is necessary to install it in the correct way. Please refer to the installation instructions; as provided with each piston set; prior to installation.