M-8 Cylinder Head Breather
S & S Cycle 136 " Big Bore Kits for M-8 Models
Harley may have dispensed with the cylinder head breather on its new design of VVT CVO heads , but in all likelihood , it will be some time before its new engine tech makes its way into the mainstream Softail and Touring models ( if at all ). Oceanside , California headquartered Feuling Parts ' new Feuling cylinder head breathers for M-8 engines are CNC-machined from billet 6061 aluminum with square surfaces , promoting excellent umbrella valve sealing . Longer main breather exit nipples with dual O-rings to promote better breather system sealing and properly sized breather inlets and location mean optimum engine breathing - the unique design maximizes breather volume and allows for easy serviceability . The breather bodies have multiple drain ports located on the inside floor and the ports are chamfered on ID to allow easy drainage , yet are squared off on the exits to deter filling from splash oil . Anodized in Feuling Red , the kits include the billet breather housings , billet covers , breather filter
elements , umbrella valves and quality hardware . CEO Luke Leatherman says that its breathers " work , seal and hold an engine vacuum . Testing shown on a healthy , sealed engine without external venting via the dipstick or transmission top cover will see 3-4 oz of oil in the sump , and once the dipstick is removed , another 3-4 oz will drain . " These breathers can be used with external venting via dipstick , transmission cover and air cleaner and are a stock replacement for Touring and Softail M-8 engines - rocker cover gaskets will need to be additionally purchased ; one-year warranty available ."
FEULING PARTS Oceanside , California , USA Tel : 619 917 6222 info @ feulingparts . com www . feulingparts . com
Le Pera ' Tailwhip UpFront '
In the continuous pursuit of horsepower , bigger is always better , and that ’ s where S & S Cycle , the masters of ' Proven Performance ', comes in with its biggest big bore kit yet . Take the stock cases or S & S ' recently released MK-Series crankcase and match them to these massive 4.320 " bore cylinders and pistons - available in Black Granite , highlighted fins or wrinkle black finishes . " When paired with the 4 5 / 8 " stroker flywheel , this combination results in a
Internationally recognized ' boutique ' motorcycle seats designer Le Pera ' s ' Tailwhip UpFront ' for 2008 - 2023 ( except 2023 and up VVT engine CVO models ) is described as " taking the KickFlip one step further ." An established top-seller and genuine Le Pera original concept , the whipped-up tail of the ' KickFlip ' combines more passenger comfort with a platform that allows riders to " explore their adventurous side .". However , the new ' UpFront ' gives the driver more ease to reach the handlebars with 6.75 " of back support and a generous 11.75 " wide seating area - wide enough for comfort , but still a narrow enough profile to be stylish . The real ' bump ' in the new design though is that it moves the driver a full 2 " closer to the handlebars . Available in Double Diamond , Pleated or Basket Weave , features include a durable , black Biker Tec cover with bonded polyester thread for durability , molded Marathon Foam , a 16-gauge powdercoated steel baseplate with carpeted seat bottom and countless custom colors and options . Le Pera celebrated its 50th anniversary as the market ' s design leader last year and the still familyowned manufacturer still handcrafts all its seats in-house at its North Hollywood , California headquarters .
LE PERA ENTERPRISES North Hollywood , California , USA Tel : 818 767 5110 info @ lepera . com www . lepera . com heart-pounding 136 " monster of an M-8 engine that still perfectly fits in the stock chassis . The big bore stroker cylinder and piston kits for 2017-up M-8 models are available for 136 " and 131 " applications , with original engine serial numbers retained and . 045 " MLS ( multi-layered steel ) head gaskets . They retain the stock engine height , include a 1312 or 136 " cam cover badge and require S & S 4 5 / 8 " stroker crank ( part # 320-0605 ).
S & S CYCLE INC . Viola , Wisconsin , USA Tel : 608 627 1497 sscust @ sscycle . com www . sscycle . com
38 AFTERMARKET MOTO DESIGN - FEBRUARY 2024 www . AMDmag . com