Heads/Head Components

Hard Luck Speedshop Milwaukee 8 Ported Heads Introducing our Streets Killer head package for M8 engines. This comprehensive package includes precision porting of intake, exhaust ports, and combustion chamber. We also conduct a meticulous valve job, replacing valve seats, valves, guides, and seals for optimal performance. Each component is carefully set up with new springs, retainers, washers, and keepers, precisely calibrated to your specific camshaft specifications, ensuring unparalleled performance. Specs - - Port and Polish- Contoured and Flowed- Competition Valve Job- White Diamond Race Valves (+1, +1.5 Int or +.5 Exhaust)- Race Springs, Washers, Retainers and Keepers- M8 Bronze Valve Guides- M8 Red Viton Jacket Seals Core Exchange Available - Lead time EST 4 weeks.

Ward Performance CNC Ported Milwaukee 8 Cylinder Heads Ward Performance CNC ported cylinder heads are available for 17-later Milwaukee-8 engines. If you are looking for the best performing high end cylinder head available for the M8 engine look no further. The Ward heads are a horsepower proven design and are on many of the top performing M8 engines around the world. Rick Ward's experience at the top level of racing and engine development has taken these heads to the next level. Recommended for engines making 150-220Hp  Features: Extensive CNC porting +1 or +2 oversize valves Multi radius competition valve job .625" lift beehive style springs Replacement of valve guides & seals Re-machining of gasket surfaces Heads are thoroughly tested, valve seats are replaced if necessary 89cc or 85cc combustion chamber (can also do others at request) Exchange with core charge or 5 week turnaround on customer supplied heads If you want to send your heads in first there is no core charge. If you need us to send heads in for you the core charge is 650$ post order. +1 is set for .600 lift springs. .640 springs availabe for extra charge post order.

Description Note: we are currently experiencing longer than normal lead times due to extreme volume. For information please contact us at info@fuelmotousa.com  Fuel M8 Moto Level A CNC Cylinder Head Porting The Fuel Moto M8 Level A CNC cylinder head was developed through dyno & extensive flowbench testing to deliver excellent performance increases on H-D Milwaukee-Eight engines with an emphasis on broad power. The Fuel Moto M8 Level A heads are CNC ported from the the valve seat to the guide, new .580 lift valve springs, competition valve job, and work best on 117-128" engines in the 130-150Hp range. Requires larger throttle body & injectorsr (SE 64mm TB with CNC ported manifold recommended) and exhaust system that is designed & proven to support the horsepower level for this application. M8 Level A Cylinder Head Porting includes the following: CNC ported with an emphasis on broad torque & HP custom FM porting performed by Ward Performance Multi radius competition valve job New high silicon/vanadium Kobe alloy .580 lift beehive style springs Replacement of valve guide seals Re-machining of gasket surfaces Heads are thoroughly tested, valve seats are replaced if necessary 89cc combustion chamber Exchange with core charge or send in your heads to be serviced

S&S 79cc and 89cc Heads 79cc Heads: These S&S® Super Stock® high performance cylinder heads are designed for stock displacement or slightly modified 2006-'16 engines up to 110". The 79cc combustion chamber provides a significantly higher than stock, but still manageable compression ratio. Machined for S&S® electric or manual compression releases. The moderately sized 1.940" intake and 1.575" exhaust valves maintain port velecity in smaller displacement engines for good low and midrange response. S&S® High performance valve springs allow the installation of camshafts with up to .650" lift. Compatible with stock rocker boxes, exhaust, and intake manifolds. Wrinkle black powder coat finish matches stock silver engine components. 89cc Heads: These S&S® Super Stock® high performance cylinder heads are designed for 2006-'16 engines with stock crankcase. They work well with engines of stock displacement , but are ideal for somewhat larger stroker or big bore engines up to 110". The 89cc combustion chamber provides a slightly higher than stock, but still manageable compression ratio in larger than stock engines.This makes them a good choice for touring bikes and other heavy vehicles. Machined for S&S® electric or manual compression releases. The large 2.000" intake and 1.605" exhaust valves maintain port velecity for good low and midrange response, but supply enough air for slightly larger engines to perform to their full potential. Intake ports flow 264 cfm compared to stock heads at 182cfm. S&S® High performance valve springs allow the installation of camshafts with up to .650" lift. Compatible with stock rocker boxes, exhaust, and intake manifolds. Wrinkle black powder coat finish matches stock black engine components. Features: High-flow performance heads Chamber designed for stock-style, flat-topped pistons Port design increases flow, while maintaining velocity Set up for .640 maximum lift EFI compatible Includes compression release machining with plugs Available in silver and black wrinkle powder-coated 79 cc heads: 1.94" intake/1.575" exhaust valves 89 cc heads: 2" intake/1.605" exhaust valves Made in USA  

S&S Heads for Evo  S&S is a name that goes hand and hand with proven performance. Why would you trust anyone else with  your Evolutions performance mods? Features: Port design increases flow, while maintaining velocity Set up for .585 maximum lift EFI compatible Fits 84-99 Evolution Big Twin Made in USA Available in silver and black wrinkle powder coat 82 cc chamber, 8.8:1 in 80" motor, 9:5.1 in 96" motor 90" intake/1.75" exhaust valves Uses stock manifold

Trask MystFree Breather Kit The Trask Mystfree kit is made from durable billet aluminum. This product is designed to drain oil into the rocker more efficiently. If you're looking to reduce oil misting from the breather on your Touring, Dyna, or Softail Harley Davidson, then this is exactly what you need. Trask is a brand you can count on, you won't be disappointed with the Mystfree kit. Features: Machined 6061-T6 billet aluminum construction Helps oil drain more efficiently into the rocker Reduces oil misting coming from the engine breathers Made in the U.S.A.

Feuling Rocker Box Breather Kit Kit includes billet breather housings, gaskets, breather filter elements, umbrella valves, top rocker cover gaskets and ARP® hardware Machined from billet 6061 aluminum with square surfaces promoting excellent gasket and breather system sealing Properly sized breather holes for optimum engine breathing Made in the U.S.A.

S&S Sidewinder Valve Springs Unique S&S design dual-spring kit reduces the risk of valve float For valve lift to .585" with 1.800"/130 lb. installed height, 325 lb. at max lift Includes springs, top and bottom collars, keeper shims and valve seals Made in the U.S.A.

Kibblewhite Racing Valve Spring Kits 600" max lift kits are designed for maximum performance Feature interference-wound, double-chrome silicone springs; heat-treated steel base washers Include steel retainers Made in the U.S.A.

Valve Spring Kit Kibblewhite Hd .600 Lift Twin Cam 88-103" Wound from premium kobe super-clean chrome silicon wire.Kpmi valve springs are heat-treated, stress relieved and shot peened to insure maximum performance and life.Springs are engineered for each specific application using proprietary advanced spring design simulation, and analysis software.Engineers pay special attention to cam and spring harmonics, stress, mass and operating rpm.

Valve Spring Kit Kibblewhite Hd .600 Lift Twin Cam 88" Wound from premium kobe super-clean chrome silicon wire.Kpmi valve springs are heat-treated, stress relieved and shot peened to insure maximum performance and life.Springs are engineered for each specific application using proprietary advanced spring design simulation, and analysis software.Engineers pay special attention to cam and spring harmonics, stress, mass and operating rpm.

Progressively wound springs using Kobe super-clean, chrome silicon-based wire that is heat treated and shot peened Tight-tolerance, FEA-designed hardened steel Posi-Loc™ style upper retainers to ensure correct assembly height and resist keeper "pull through" Hardened steel basewashers control lateral movement Kits use OEM-style valve keys (sold separately) Made in the U.S.A.

Feuling High-Load  Beehive Valve Springs With Titanium Retainers For M8 Machined from a premium grade Hi-tensile chrome silicon single conical ovate wire, shot-peened with a specially processed thermal heat treat and super NexTex® finish to give these valve springs the needed fatigue life to exceed the high demands of V-Twin engines from stock to performance FEULING® BEEHIVE® valve springs use a smaller lighter weight retainer which drastically reduces the valve weight creating a quicker revving and smoother motion than comparable dual or single valve springs. Valve springs are a direct bolt-in replacement, no spring seat or rocker cover machining required up to .565” lift Springs will accommodate over .600 cam lift, but will require spring seat pocket machining on the cylinder heads to set correct spring open height Smaller lighter weight retainers which drastically reduce the valve weight creating a quicker revving and smoother motion than comparable dual or single valve springs Eliminate valve spring separation, maximize stability, reduce valve-train noise & harmonics Kits include: matched set of Feuling® High Load Beehive® valve springs, Ti retainers, machined spring seats, seat shims, valve locks and a set of premium Viton® valve seals equipped with a spring loaded valve stem wiper system ONLY recommended for large lift camshafts and RACE style engines as these valvesprings if not set properly will create extreme rocker arm deflection Seat lbs./Installed Height 151 Lbs. @ 1.475 (0.485 Lift) 144 Lbs. @ 1.498 (0.508 Lift) 143 Lbs. @ 1.501 (0.511 Lift) 140 Lbs. @ 1.511 (0.521 Lift) 124 Lbs. @ 1.562 (0.578 Lift) 120 Lbs. @ 1.582 (0.592 Lift) 304 Lbs @ 0.990 OPEN HEIGHT Coil Bind @ .945 Recommended for .540”+ lift camshafts Feuling® BeeHive® valve springs must be installed at the correct OPEN HEIGHT, matching max lift to the open height spec of the valve springs Made in the U.S.A.

Feuling Endurance Beehive Valve Springs With Titanium Retainers Made from premium stress-relieved conical ovate wire Feature extremely high-level of fatigue life Use a much smaller and lighter weight retainer to reduce valve weight and create quicker rev and smoother motion Designed to handle the demands of performance engines with 585" and smaller lift camshafts Kits include: Econo BeeHive® valve springs, lightweight 7° steel retainers, machined heat-treated chromoly spring seats, seat shims, valve locks and a set of premium Viton® valve seals equipped with spring-loaded valve stem wiper system Seat lbs./installed height; 183 lbs. at 1.770" (0.510" lift), 175 lbs. at 1.795" (0.535" lift), 172 lbs. at 1.813" (0.553" lift), 165 lbs. at 1.835" (0.574" lift), 160 lbs. at 1.845" (0.585" lift), 380 lbs. at 1.260" OPEN HEIGHT coil bind at 1.190" Dyno proven and track tested Feuling® BeeHive® valve springs must be installed at the correct OPEN HEIGHT, matching max lift to the open height spec of the valve springs Made in the U.S.A. Econo BeeHive® kits are direct replacement with no machining or rocker box clearance required for cams up to .574" lift for 84-04 Big Twin and 86-03 XL and up to .585" lift for 05-17 Twin Cam.

Feuling High-Load Beehive Valve Springs With Titanium Retainers Made from premium stress-relieved conical ovate wire with nitrided surface heat treatment, shot-peened surface enhancements and Nano Peen™ polish Feature extremely high level of fatigue life Use a much smaller and lighter weight retainer to reduce valve weight and create quicker rev and smoother motion Designed to handle the highest demands of performance engines with high-lift, steep-ramped camshafts Kits include: High-Load BeeHive® valve springs, lightweight 10° Titanium retainers manufactured from Ti-17 alloy and micropolished for enhanced fatigue life, machined heat-treated chromoly spring seats, seat shims, valve locks and a set of premium Viton® valve seals equipped with spring-loaded valve stem wiper system Seat lbs./installed height; 217 lbs. at 1.789" (.574" lift), 215 lbs. at 1.800" (.585" lift), 208 lbs. at 1.819" (.604" lift), 200 lbs. at 1.845" (.630" lift), 185 lbs. at 1.900" (.685" lift), 170 lbs. at 1.935" (.720" lift), 415 lbs. at 1.215" (open height) coil bind at 1.125" Dyno proven and track tested Feuling® BeeHive® valve springs must be installed at the correct OPEN HEIGHT, matching max lift to the open height spec of the valve springs Made in the U.S.A. Feuling® BeeHive® valve spring kits are direct replacement with no machining or rocker box clearance required up to .574" lift for 84-04 Big Twin and 86-03 XL and up to .700" lift for 05-17 Twin Cam. Larger camshafts require valve guide machining for seal-to-retainer clearance.