Skip to content
*IMPORTANT NOTICE: Due to increase in fraudulent orders the billing & shipping address must match when placing your order. Thank you for your patience and understanding.
*IMPORTANT NOTICE: Due to increase in fraudulent order the billing & shipping address must match when placing your order. Thank you for your patience and understanding.

Banshee 4 mil 421 Serval Cylinder Big Bore Top End Rebuild Cool Head Domes Kit

by BPRATV
Original price $2,184.99 - Original price $2,184.99
Original price
$2,184.99
$2,184.99 - $2,184.99
Current price $2,184.99
THE BADDES 421cc BANSHEE BIG BORE ON THE PLANET!  WORKS ON ALL YEARS AND MODELS!
    • 421cc 68x58mm CPI Serval cylinder (see below for info)
    • Wiseco 573 Series pro lite forged pistons
    • Hi temp piston rings
    • Wristpins 
    • Circlips
    • Pro Design billet cool head
    • Cool head o-ring kit
    • Pump gas billet cool head domes
    • Cometic one piece Cheetah Cub base gasket 
    • Intake gaskets
    • TITANIUM head stud kit with TITANIUM 12 point flange nuts
    • TITANIUM 12 pt base nuts
    • TITANIUM stud extenders with TITANIUM nuts
    • TITANIUM cylinder to case stud kit
    • All Ti studs are Allen head
    • All Ti fasteners are heat treated, Grade 5 Titanium alloy and come with a LIFETIME WARRANTY* 
    • Water Jacket plugs
    • Uses +4mm 115mm rod stroker crankshaft - Does not work with stock crank
    • No case mods are required
    • All brand new parts
    • 1 year warranty*

    We are BPRATV.  Feel free to visit us on the web, give us a call, come in to our Upland, CA location.  Business hours are Mon to Fri 7am to 4pm, PST.

     PRICES AND LISTINGS ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE.

    DO YOU MAKE A LIVING WORKING ON BIKES? ARE YOU A SHOP OR DEALER?  IF SO CONTACT US ABOUT OUR DEALER PROGRAM THAT GIVES YOU DISCOUNTS ON EVERYTHING WE SELL!

    Payments:  We accept all forms of traditional and online payment methods available – Cash, MC, AMEX, VISA, DISC, Paypal, Venmo, Cashapp, among others.  Payment can be made online or over the phone.  PRICES ARE SUBJECT TO CHANGE AND LISTINGS MAY BE REVISED AT ANY TIME WITHOUT NOTICE.

    **Products we sell: At BPRATV we sell parts from the best names in the industry, and we stock the same parts from different manufacturers so that when back orders occur we have an alternate part to send that is the same quality.  This would be the ONLY reason your order might be slightly different when it arrives. 

     Returns: Please check your order completely when you receive it and contact us if there is an issue.  99% of problems can be easily solved without returning the entire order.  We accept returns within the first 30 days, and returned items are subject to a 10% restocking fee  Orders must be sent back 100% complete and all parts must be brand new, never installed, in the original packaging, to receive a refund for them.  Once items have been modified, installed, or used in any way they are not eligible for return.  It is the buyer’s responsibility to ensure returned parts arrive to us in the same condition they were when they left our facility.  

     *Warranty: We stand behind all parts we sell 100%.  If after installation there is an issue contact us for a warranty return.  This product is NOT DIY.  Over 99% of people in the world are not qualified to build an engine, and it is the responsibility of the person doing the work to ensure the parts work correctly.  We ALWAYS STRONGLY recommend parts be installed by a qualified, experienced mechanic.  STUD WARRANTY: Our studs are made from Grade 5 Ti alloy, stronger than pure Ti, and the best quality fastener for your Banshee.  Ti alloy is as strong or stronger tham most forms of Chromoly, it is more heat and corrosion resistant than Chromoly, and it is HALF THE WEIGHT of Chromoly.  If for any reason a stud fails during use, not installation, we will send a new, complete stud kit.  No other parts or any labor are included, and it cannot be converted to a refund or discount on any order.  Our warranty does not cover any failure that is a result of improper installation, tuning, break in, maintenance, or misuse.  For any warranty to be considered the part(s) in question must first be sent back to us for inspection, NO EXCEPTIONS.  We do not warranty parts based on phone calls, photos, emails, what you read online, or another mechanic's assessment alone.

    Feedback: Positive feedback is 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 just contact us and we will do what is needed to help you feel as "positive" as possible about your experience.  Also, we want information from customers when their experience is less than desirable so we know what areas need improvement the most.  Please work with us and we will ALWAYS work with you.

     

    Compare products

    {"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

    Select first item to compare

    Select second item to compare

    Select third item to compare

    Compare