This 74 Panhead cylinder and piston kit is bored and honed to 87.325mm with a stock compression of 8.5:1. Cylinders have original casting marks as on stock cylinders for this year group. Genuine Hastings rings included. Both cylinders are equipped with oil passages drilled through the wall to allow oil to return through the bore to the crank case. Pistons are pre-fit ready to run. Break in slowly first 500 miles. *NOTE: All cast iron cylinders have same piston to wall clearance .0025 -.003. Bore size is 3.4380 -3.4385 inner diameter.
FITMENT
TECH NOTES
ACCESSORY ITEMS
REPLACEMENT PARTS
Tech Notes
Cylinders have M-1-0 date code.