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Banshee 4 Mil DM Cylinder Pistons Complete 78x58 Drag Ported CP 4mm Big Bore Kit

$4,999.99

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Compatible Vehicles
Submodel Year Make Model
YFZ350 2006 Yamaha Banshee 350
YFZ350SE Special Edition 2006 Yamaha Banshee 350
YFZ350SP 50th Anniversary Edition 2006 Yamaha Banshee 350
YFZ350 2005 Yamaha Banshee 350
YFZ350SE Special Edition 2005 Yamaha Banshee 350
YFZ350 2004 Yamaha Banshee 350
YFZ350LE Limited Edition 2004 Yamaha Banshee 350
YFZ350 2003 Yamaha Banshee 350
YFZ350 2002 Yamaha Banshee 350
YFZ350 2001 Yamaha Banshee 350
YFZ350 2000 Yamaha Banshee 350
YFZ350 1999 Yamaha Banshee 350
YFZ350 1998 Yamaha Banshee 350
YFZ350 1997 Yamaha Banshee 350
YFZ350 1996 Yamaha Banshee 350
YFZ350 1995 Yamaha Banshee 350
YFZ350 1994 Yamaha Banshee 350
YFZ350 1993 Yamaha Banshee 350
YFZ350 1992 Yamaha Banshee 350
YFZ350 1991 Yamaha Banshee 350
YFZ350 1990 Yamaha Banshee 350
YFZ350 1989 Yamaha Banshee 350
YFZ350 1988 Yamaha Banshee 350
YFZ350 1987 Yamaha Banshee 350
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Compatible Vehicles
Submodel Year Make Model
YFZ350 2006 Yamaha Banshee 350
YFZ350SE Special Edition 2006 Yamaha Banshee 350
YFZ350SP 50th Anniversary Edition 2006 Yamaha Banshee 350
YFZ350 2005 Yamaha Banshee 350
YFZ350SE Special Edition 2005 Yamaha Banshee 350
YFZ350 2004 Yamaha Banshee 350
YFZ350LE Limited Edition 2004 Yamaha Banshee 350
YFZ350 2003 Yamaha Banshee 350
YFZ350 2002 Yamaha Banshee 350
YFZ350 2001 Yamaha Banshee 350
YFZ350 2000 Yamaha Banshee 350
YFZ350 1999 Yamaha Banshee 350
YFZ350 1998 Yamaha Banshee 350
YFZ350 1997 Yamaha Banshee 350
YFZ350 1996 Yamaha Banshee 350
YFZ350 1995 Yamaha Banshee 350
YFZ350 1994 Yamaha Banshee 350
YFZ350 1993 Yamaha Banshee 350
YFZ350 1992 Yamaha Banshee 350
YFZ350 1991 Yamaha Banshee 350
YFZ350 1990 Yamaha Banshee 350
YFZ350 1989 Yamaha Banshee 350
YFZ350 1988 Yamaha Banshee 350
YFZ350 1987 Yamaha Banshee 350
THE BIGGEST BADDEST 4mm BANSHEE BIG BORE ON THE PLANET

78X58mm CP Industries DM cylinder fully drag ported
Wiseco 78mm forged DM pistons custom made for CPI
Nitrite coated piston rings
Chrome wristipns
Circlips
+4mm Crankworks billet stroker crank with rods
Genuine Keihin 39mm PWK carbs
UPP DM cylinder carb manifolds
Terrycable steel braided throttle cable
8 inch K&N style hi flow filters
Hinson billet clutch basket
Hinson 8 plate drag clutch
Moto Tassinari V-Force 4 reeds
DM cylinder reed adapters
DM head water inlet and outlet
DM cylinder head shell 
Billet DM cylinder head domes
Complete gasket kit
Cometic one piece DM cylinder base gasket
DM cylinder o-ring kit
DM cylinder adapter for stock cases
DM head studs with nuts
Stud extenders
Water jacket plugs
ARP base nuts
NGK spark plugs
Billet water pump impeller
Water pump bearing
Clutch pusher with bearing mod
Maxlock allen head crankcase stud kit
Transmission bearings
All parts are brand new

Building this engine must be done by a qualified mechanic with experience building Banshee drag engines.  Modifications to your crankcases are required, it runs on race gas or alcohol only, the carbs must be re-jetted and the bike tuned properly, and there additional parts needed for this to run right.  The parts in this listing are the best money can buy.  It is up to the person assembling, installing, and tuning it to make sure it runs correctly and does not fail.  It is a high power, high stress engine and due to the way a drag engine is run parts must be replaced frequently. For all of these reasons there is not warranty.  Make sure this is what you want and need before buying because there are no returns for this item either.  We are happy to assist you with parts, build the engine, or refer you to the places you need.

Banshees are one of our specialties so contact us for all your Banshee needs!

Everything is new in the original packaging.  We are an authorized distributor and the original manufacturer’s warranty applies*.  PRICES AND LISTINGS ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE.

Office hours are Monday to Friday 7am to 4pm PST.  Call, visit us online, or in person from 7am to 4pm at 1538 Howard Access Rd, Suite A, Upland, CA 91786.  We accept all forms of payment – Major credit cards, Paypal, Venmo, Cash App, personal or business check(once cleared), and cash money.

**We stock parts that are the same quality, price, and have the same specifications from different manufacturers so that when back orders occur, like they have been for the last couple of years, we have an alternate part to send you.  That is the only reason your order may arrive looking slightly different from the photos.  We never substitute a cheaper part for an original and if you want a certain brand just ask and we will make sure you get it.

Payments:  We accept all forms of payment – Cash, MC, AMEX, VISA, DISC, PayPal, Venmo, Cash App, among others.  Payment can be made online or over the phone or in person.

Feedback: Positive reviews and feedback are greatly appreciated.  We have changed the way we do business in response to customer concerns and receiving positive feedback when an order goes the way it is supposed to is a huge help.  If you do not feel we deserve positive feedback or reviews just contact us and we will do what is needed to help you feel as "positive" as possible about your experience.  To make it worth your while we will give you 10% off your next order for taking the time to leave us 5-star positive feedback.  That could be hundreds or dollars for 1 minute of your time!