Introducing ULTRA STROKER pistons from Wiseco designed by engine builders with 20 plus years in the industry One of the definitive ways to get more power from your Banshee is by increasing the stroke of the engine. This is a pair of BRAND NEW Wiseco forged ULTRA STROKER pistons. These pistons are custom made by Wiseco (part number 11882)They allow you to run a 4mm stroke long rod crank (58mm stroke 115mm rod) - The stock banshee head will require a .060” base gasket to work properly. I also offer the .060” base gasket as well. Availability is 64.00, 64.50, 65.00, 65.50, and 66.00mm sizes for your cylinders These are Wiseco forged pistons that takes all the good features to make much more power than Blaster pistons: - The piston domes are 13 degrees - so you can run a stock banshee head (must use the .060 base gasket) - a Blaster 573 piston has 9 degrees, so the squish is not optimal when using a stock Banshee head. - 6mm pin offset location - compensated for the increased stroke and rod length 1. The raised intake windows allow the piston windows to be fully open at BDC. (Unlike the blaster piston, in which they are mostly closed at BDC) - Please see the last auction photo for a visual between an ULTRA piston (left) and a BLASTER piston (right) Why use ULTRA STROKER PISTONS?You have a stock bore banshee, and you don't want to bore it .080”over to the last bore just to run Blaster pistons (Blasters are 66.00mm or larger)You don't have to re-cut 9 degree Blaster dome for your Cool Head or re-cut your stock head (we also sell 13 degree ultra stroker domes that are bolt on - the only modification with a Pro Design Cool Head is our custom CNC cut dome and using a .020” base gasket instead)You don't want to run a spacer plate, the transfer timing will be out of specifications, above 135 crank angle degree. In stock & ready to ship - receive it in 2-3 days with free shipping! THIS AUCTION IS FOR A STAGE 1 KIT: 2 x Wiseco Ultra pistons, with rings, c-clips, and wrist pins1 x .060 base gasket for use with stock OEM Yamaha Banshee head(You need to use a 4mm long rod stroker crank and stock Banshee head with this setup) FREE shipping within the contiguous lower 48 US statesFREE insurance on all parts purchasedFREE tracking or delivery confirmationFREE local pickup availableFREE 30 day return policy on all parts that are not as describedFREE product replacement if you are unsatisfiedFREE 100% refund on all returned parts Thanks for shopping at MOTOR CITY ATV, LLC of Metro Detroit, MICustomer satisfaction is our top priority. We want a 5 star rating in each category! We ship every day & have daily UPS and USPS pickupsMany of these same parts are also on our MOTOR CITY ATV website, but we put all the “one of a kind” items up here on eBay, so unfortunately, we cannot combine eBay orders with those from our website. If you have a question about any of our items, or have a problem with your order, please email us before bidding; Leaving a negative feedback will not help a problem get resolved, but an email or phone call will! We take apart hundreds of ATVs every year, if you need a part, just ask, we have it! Many Yamaha Banshee parts are universal, and will fit the following years: 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 and 2006. 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 Add a map to your own listings. FREE Trial!