Increase the displacement of 883cc and 1200cc engines to 1250cc at 10.3:1 compression
May be used with stock 1200cc cylinder heads, but S&S CNC ported heads are recommended
Stock 1200cc cylinders and 1986-'2003 883cc cylinders may be bored to accept the 3-9/16" bore 1250cc pistons, but 2004-'16 883cc cylinders may not be used

This item fits:

See compatible vehicles above

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We offer 60 day free returns!
Returns must be in NEW/UNUSED condition in ORIGINAL PACKAGING.
If the part is used there is a possibility that you will not receive a full refund, as we do have to resell the item.
Electrical parts are NOT returnable.
All Returns must be authorized by us and you will get a RMA number to put on the outside of the box.
If an exchange needs to be made we will gladly work with you, however you must pay for shipping to return item AND shipping to get the new item to you.
In the event that we make a mistake, they do happen occasionally (we are sorry), we will cover shipping costs to get you the correct item.