KITS FOR 1999-2006 TWIN CAM® ENGINES
Factory 1999-2006 Twin Cam® engines are equipped with 4” stroke crankshafts. The factory cylinder bore size of 3-3/4” yields the 88” displacement. We can turn your 88” engine into either a 95 or a 98”, simply by resizing the factory cylinders.
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
*To ensure you enjoy a premium experience with a Zipper's Kit, Please fill out a Job Order Sheet prior to completing an order on the website.
Click here for Zipper's Job Order Sheet
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KITS FOR 2007-UP TWIN CAM® ENGINES
Factory 2007-up Twin Cam® engines are equipped with 4-3/8” stroke crankshafts. The factory cylinder bore size of 3-3/4” yields the 96” displacement, which was gradually increased to 3-7/8” starting in 2010 for 103” displacement. We can turn your 96” engine into either a 103 or a 107”, and your 103 into a 107” simply by resizing the factory cylinders.
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
***To ensure you enjoy a premium experience with a Zipper's Cylinder Kit, Please fill out a Job Order Sheet prior to completing an order on the website.
Click here for Zipper's Job Order Sheet
Please choose your application below then select the radio button next to the item to purchase, then add to cart
These cylinders, when used with our 4-5/8” stroker crankshaft, increase displacement to 124”. Complete kits include cylinders, forged flat top piston kit, head and base gaskets. Requires case boring (instructions included) and stroker piston cooling jet kit. These cylinders are .183” longer than stock and require a wider intake manifold. Fits in all frames.
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
***To ensure you enjoy a premium experience with a Zipper's Cylinder Kit, Please fill out a Job Order Sheet prior to completing an order on the website.
Click here for Zipper's Job Order Sheet