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KFX400

KFX400-Motor-Banner kfx400 KFX400 KFX400 Motor Banner
KFX400 440cc Big Bore Motor Package……$1395.00 Kit includes: New Cylinder Works 94mm big bore cylinder, CT head porting, 5 angle radius Race valve job, Web cams, R&R valves and shim head, valve stem seals, cylinder Works 440 Kit, and Cometic complete top-end gasket set.
KFX400 440cc Big Bore Complete Package……$2725.00 Kit includes: Complete 440 Big Bore Motor Package listed above along with the pipe kit, Keihin 39mm or 41mm FCR carb, TRX400EX intake boot, and a TRX400EX K&N air filter with Outerwear.
PLEASE NOTE: Your head is returned assembled and ready to bolt on and run. This kit price is for you shipping us your top-end only. If you would like to ship us your complete motor, add $250.00 for R&R of top-end.
CLICK Here for Shipping Instructions for Your Motor
mag_4D_MX_Z400_build_vid kfx400 KFX400 mag 4D MX Z400 build vid mag_4D_MX_Z400_build kfx400 KFX400 mag 4D MX Z400 build
mag_AI_Z453_build kfx400 KFX400 mag AI Z453 build mag_OR_Z440_build kfx400 KFX400 mag OR Z440 build

 

Description

Price

Photo

Exhaust-Product-Title-KAW kfx400 KFX400 Exhaust Product Title KAW
KFX400 Pipe Kit $559.95buynow kfx400 KFX400 buynow PP-S400-PK2 kfx400 KFX400 PP S400 PK2  180x120
CT Spark Arrestor 7 Disc End Cap Kit with Bolts $94.95 PP-DISC-12kSpark arrestor disc 12, CT end cap & bolts kfx400 KFX400 PP DISC 12kSpark arrestor disc 12 CT end cap bolts 180x103
ATV Exhaust Turn Down End Cap – Turn down tip includes 6 stainless steel bolts. $64.95buynow kfx400 KFX400 buynow

PipeEndCap4232 kfx400 KFX400 PipeEndCap4232 180x120

Shop-Product-Title-KAW kfx400 KFX400 Shop Product Title KAW
Head Porting – CT Racing has done significant amounts of flow bench and dyno testing to offer you the best port layout for your application. We highly recommend getting a valve job at the same time the head is being ported. Our CNC valve job ties in with the port work to offer extremely effective flow numbers. $350.00 450R Ported Head kfx400 KFX400 450R Ported Head 180x120
3 Angle Valve Job – Quality valve job. $144.00 450R 3 Angle Head kfx400 KFX400 450R 3 Angle Head 180x120
5 Angle Radius Race Valve Job – The 5 angle radius Race valve job significantly raises the flow characteristics at low valve lift and definitely shows a horsepower increase throughout the useable power curve. $192.00 LB-023 Valve job (4 valve) 5 angle performance radius valve job. kfx400 KFX400 LB 023 Valve job 4 valve 5 angle performance radius valve job
5 Angle Radius Race Valve Job for +1mm Exhaust Valves – The 5 angle radius Race valve job significantly raises the flow characteristics at low valve lift and definitely shows a horsepower increase throughout the useable power curve. The 5 angle valve job really shines on big valves as the seat diameter is opened up all the way into the aluminum casting, blending to the port work. Adding +1mm valves to a modified engine package helps the mid to top-end horsepower. Most aftermarket hi compression pistons are clearanced for +1mm valves. $240.00 450R +1mm Head kfx400 KFX400 450R  1mm Head 180x120
Split 4 Stroke Cases, Inspect Crank & Trans, & Reassemble $550.00
Re-sleeve 4 Stroke Cylinder (labor only) $150.00
Disassemble & Reassemble 4 Stroke Top-end (from bottom-end only) $300.00
Disassemble Head, Clean Ports, Prep, & Reassemble $95.00
Rebuild 4 Stroke Crankshaft (labor only) $125.00
Guide replacement (plus parts) per guide std. size

Install guide, size guide. Must have valve job done after valve

guide installation.

$36.00
Intake-Product-Title-KAW kfx400 KFX400 Intake Product Title KAW
Dura Blue Foam Air Filter $36.18buynow kfx400 KFX400 buynow Dura-Blue-Filter kfx400 KFX400 Dura Blue Filter 180x120
Pro Design Pro Flow Foam Air Filter Kit $94.95buynow kfx400 KFX400 buynow AF-PD-221 kfx400 KFX400 AF PD 221 180x120
Pro Design Pro Flow Replacement Foam Air Filter $42.75buynow kfx400 KFX400 buynow Pro_Design_Foam_only kfx400 KFX400 Pro Design Foam only 180x120
Pro Design Pro Flow K&N Air Filter Kit $123.95buynow kfx400 KFX400 buynow AF-PD-221 kfx400 KFX400 AF PD 220 180x120
Pro Design Pro Flow Replacement K&N Air Filter $66.45buynow kfx400 KFX400 buynow Pro_Design_K&N_only kfx400 KFX400 Pro Design KN only 180x120
K&N Filter ATV Powerlid – Replaces stock airbox lid with K&N Filter element. With increased airflow, produce more HP w/ added protection of another filter. Comes complete with filter cover and jetting. $150.35  $121.95buynow kfx400 KFX400 buynow K&N-ATV-Powerlid kfx400 KFX400 KN ATV Powerlid 180x120
Bigbore-Product-Title-KAW kfx400 KFX400 Bigbore Product Title KAW
KFX400 Cylinder Works Standard Bore Kit 94mm – Available with Vertex 11.4:1 or with JE 12:1Kit includes: New Cylinder Works 94mm Standard Bore cylinder, Forged Piston Kit, and Cometic top-end gasket set. $589.95buynow kfx400 KFX400 buynow TRX450 Big Bore Kit kfx400 KFX400 TRX450 Big Bore Kit 180x120
Engine-Product-Title-KAW kfx400 KFX400 Engine Product Title KAW
KFX400 CP Piston Kit 90mm – Available in 12.5:1 Comp Ratio. $295.00buynow kfx400 KFX400 buynow kfx400 KFX400 CP Piston Kit 180x120
KFX400 CP Piston Kit 94mm – Available in 12.5:1 Comp Ratio. $295.00buynow kfx400 KFX400 buynow kfx400 KFX400 CP Piston Kit 180x120
KFX400 CP Piston Kit 95mm – Available in 12.5:1 Comp Ratio. $295.00buynow kfx400 KFX400 buynow kfx400 KFX400 CP Piston Kit 180x120
KFX 400 JE Piston Kit 90mm – Available in 12:1 and 13.5:1 Comp Ratios. $299.99  $242.99buynow kfx400 KFX400 buynow JEPistons kfx400 KFX400 JEPistons 180x120
KFX 400 JE Piston Kit 92mm 416cc Big Bore – Available in 12:1 Comp Ratio. $299.95  $242.99buynow kfx400 KFX400 buynow JEPistons kfx400 KFX400 JEPistons 180x120
KFX 400 JE Piston Kit 94mm 434cc Big Bore – Available in 12:1 Comp Ratio. $299.95  $242.99buynow kfx400 KFX400 buynow JEPistons kfx400 KFX400 JEPistons 180x120
KFX 400 JE Piston Kit 95.5mm 450cc Big Bore – Available in 13:1 and 13.5:1 Comp Ratios. Choose from Standard Piston or PRO SERIES Piston. $349.99  $296.99buynow kfx400 KFX400 buynow JEPistons kfx400 KFX400 JEPistons 180x120
KFX 400 Wossner Piston Kit 90mm – Available in 12:1 and 13.5:1 Comp Ratio. $170.00  $153.00buynow kfx400 KFX400 buynow Wossner Piston kfx400 KFX400 Wossner Piston1 180x120
KFX 400 Wossner Piston Kit 94mm 434cc Big Bore – Available in 12:1 Comp Ratio. Cylinder resleeve and bore required. $203.34  $183.00buynow kfx400 KFX400 buynow Wossner Piston kfx400 KFX400 Wossner Piston1 180x120
KFX 400 Wossner Piston Kit 95.5mm 450cc Big Bore – Available in 12:1 and 13.5:1 Comp Ratio. Cylinder resleeve and bore required. $203.34  $183.00buynow kfx400 KFX400 buynow Wossner Piston kfx400 KFX400 Wossner Piston1 180x120
KFX 400 Vertex Piston Kit 90mm – Available in 11.3:1 and 13.5:1 Comp Ratios. $162.16buynow kfx400 KFX400 buynow Vertex-4-Stroke-Piston-Kit kfx400 KFX400 Vertex 4 Stroke Piston Kit 180x120
KFX 400 Vertex Piston Kit 91-94mm Big Bore 407-440cc – Available in 11.3:1 Comp Ratio. Aftermarket cylinder sleeve required. $173.14buynow kfx400 KFX400 buynow Vertex-4-Stroke-Piston-Kit kfx400 KFX400 Vertex 4 Stroke Piston Kit 180x120
KFX 400 Cometic Complete Top-end Gasket Set – Available in 92mm, 94mm Big Bore, and 97mm Big Bore. Available in Standard or EST. Standard does not include valve stem seals. EST = Extreme Seal Technology (includes valve stem seals) $41.30buynow kfx400 KFX400 buynow C3201-EST KFX450 08 96mm kfx400 KFX400 C3201 EST KFX450 08 96mm 180x120
KFX 400 Winderosa Complete Gasket Set – This complete engine gasket set also includes all of the engine oil seals – crank, countershaft, and ETC. Winderosa Gaskets are extemely high quality US made gasket sets. $116.47  $104.83buynow kfx400 KFX400 buynow Windersoa-Gasket-Set2 kfx400 KFX400 Windersoa Gasket Set2 180x120
KFX 400 Hot Rods Connecting Rod – Available in stock stroke. $159.95  $127.95buynow kfx400 KFX400 buynow hot_rods_connecting_rods kfx400 KFX400 hot rods connecting rods 180x120
KFX 400 Hot Rods Crank – Available in Stock Stroke and +4mm Stroker. Main bearings not included. $479.95  $407.95buynow kfx400 KFX400 buynow Hot Rods Cranks kfx400 KFX400 Hot Rods Cranks 180x120
KFX400 Hot Rods Heavy Duty Complete Bottom End Kit – Available in Stock Stroke or +4mm Stroker. This kit includes main bearings, seals, gaskets, and crank. $629.95  $535.95buynow kfx400 KFX400 buynow hot_rod_bottom_end_kit kfx400 KFX400 hot rod bottom end kit 180x120
KFX 400 Web Cam Intake & Exhaust Camshaft Set – Available in Woods, TT/MX, Desert (mid/top), Drag, and MX builds $675.00  $607.50buynow kfx400 KFX400 buynow Web Cams PS kfx400 KFX400 Web Cams PS 180x120
KFX 400 Hot Cam Intake Camshaft – Available in Stage 1 and Stage 2. Cam uses stock auto-decompression mechanism. Intake and exhaust cams sold separately. $245.92  $209.92buynow kfx400 KFX400 buynow hot-cam-stock-photo kfx400 KFX400 hot cam stock photo 180x120
KFX 400 Hot Cam Exhaust Camshaft – Available in Stage 1 and Stage 2. Cam uses stock auto-decompression mechanism. Intake and exhaust cams sold separately. $280.81   $238.95buynow kfx400 KFX400 buynow hot-cam-stock-photo kfx400 KFX400 hot cam stock photo 180x120
KFX 400 Kibble White Stainless Steel Valves – Available in Standard and +1mm Oversized in both Intake or Exhaust Valves. Recommend valve spring kit part #EC-KW-60-60045. $29.81  $26.85 eabuynow kfx400 KFX400 buynow valves kfx400 KFX400 valves 180x120
KFX 400 Hi Performance Racing Valve Spring Kit with Retainers – This Kit (EC-KW-60-60045) is Recomended to use with above Kibble White Valves $148.65  $133.79buynow kfx400 KFX400 buynow Raptor700RValveSprings4076 kfx400 KFX400 Raptor700RValveSprings4076 180x120
Clutch-Product-Title-KAW kfx400 KFX400 Clutch Product Title KAW
Hinson Billetproof Clutch Basket $259.99  $234.00buynow kfx400 KFX400 buynow Hinson-Clutch-Basket kfx400 KFX400 Hinson Clutch Basket 180x120
Hinson Clutch Kit with Fibers, Steels, & Springs $199.99  $170.00buynow kfx400 KFX400 buynow Hinson-Clutch-Kits kfx400 KFX400 Hinson Clutch Kits1 180x120
Ignition-Title-Banner-KAW kfx400 KFX400 Ignition Title Banner KAW1
Dynatek Programmable ATV Ignition – Direct plug in performance: 4 programmable timing curves, programmable rev limiter, external curve selector switch, plug-in module replacement, and more. Comes with CT Program Installed. dynatek-program-atv-ignition kfx400 KFX400 dynatek program atv ignition 180x120
Carburetion-Product-Tle-KAW kfx400 KFX400 Carburetion Product Tle KAW
KFX400 Keihin FCR Carburetor w/ Cable – Available in 39mm and 41mm and includes thumb throttle cable. $880.95buynow kfx400 KFX400 buynow FCR Carbs kfx400 KFX400 FCR Carbs 180x120
KFX400 Keihin FCR Carburetor Kit – Available in 39mm and 41mm. Kit includes carburetor, thumb throttle cable, TRX400EX intake boot, and TRX400EX K&N air filter w/Outerwear. $999.95buynow kfx400 KFX400 buynow FCR Carbs kfx400 KFX400 FCR Carbs 180x120
Controls-Product-Title-KAW kfx400 KFX400 Controls Product Title KAW
Fasst 1-1/8″ Flexx Bars – These are the best off road bars money can buy. Bars come with three different elastomers to get the proper cushioning for your type of riding along with a cross bar pad in your color choice of blue, grey, or red. Please Note: 1-1/8″ bar mount kit is required. $389.95buynow kfx400 KFX400 buynow FASSTFlexBars2 kfx400 KFX400 FASSTFlexBars2 180x120

Fly Aero Taper 1-1/8″ Fat Bars with Bar Pad – Bars are available in black, gun metal, or silver. Please Note: 1-1/8″ bar mount kit is required.

$69.95  $59.95buynow kfx400 KFX400 buynow Fly-Areo-Tapper-Handlebars kfx400 KFX400 Fly Areo Tapper Handlebars 180x120

Fly Universal 1-1/8″ Handlebar Mount Kit – This is a clamp set than converts your stock 7/8″ bar clamp to the 1-1/8″ Fat Bar set up. Can be used with any brand 1-1/8″ bars.

$44.95  $39.95buynow kfx400 KFX400 buynow Fly-Handlebar-Unv-Clamps kfx400 KFX400 Fly Handlebar Unv Clamps 180x120
Streamline Reflex Pro Pack with Clutch and Brake Lever – Available in Black, Blue, Red, and Orange.
$199.99  $164.95buynow kfx400 KFX400 buynow Streamline-Reflex-Pro-Set kfx400 KFX400 Streamline Reflex Pro Set 180x120
Streamline Steering Stabilizer 7-Way Adjustable Non-Rebuildable – Available in Silver, Red, Blue, or Black.
$139.99  $126.00buynow kfx400 KFX400 buynow Streamline-Steering-Dampner kfx400 KFX400 Streamline Steering Dampner 180x120
Streamline Steering Stabilizer 7-Way Adjustable Rebuildable – Available in Silver, Red, Blue, or Black.
$159.99  $144.00buynow kfx400 KFX400 buynow Streamline-Steering-Stabl2 kfx400 KFX400 Streamline Steering Stabl2 180x120
Streamline Steering Stabilizer 11-Way Adjustable Rebuildable – Available in Silver, Red, Blue, or Black.
$179.99  $162.00buynow kfx400 KFX400 buynow Streamline-Steering-Stabl kfx400 KFX400 Streamline Steering Stabl 180x120
Streamline Steering Stabilizer Carbon 11-Way Adjustable Rebuildable – Available in Silver, Red, Blue, or Black.
$199.99  $180.00buynow kfx400 KFX400 buynow Streamline-Steering-Stl-Car kfx400 KFX400 Streamline Steering Stl Car 180x120
Pro Design Tether Kill Switch – Available in Black, Blue, or Red $36.95buynow kfx400 KFX400 buynow KILLSWITCH kfx400 KFX400 KILLSWITCH 180x120
CV4 Billet Tether Kill Switch Mount – Handlebar mount for Pro Design and Pro Armor tether kill switches.This mount allows you to mount your switch to the bar without using up all of the spacing. Allows you to mount the switch much closer to the bend. Available in Black and Red. $49.95buynow kfx400 KFX400 buynow CV4_Billet_Tether_Mount kfx400 KFX400 CV4 Billet Tether Mount 180x120
Brakes-Product-Title-KAW kfx400 KFX400 Brakes Product Title KAW
Streamline Steel-braided Front Brake Line Kit – (Please specify color & length) Available in black, blue, clear, green, red, or smoke. Some colors and lengths may need to be special ordered. $89.95  $80.96buynow kfx400 KFX400 buynow Streamlin Brake Lines kfx400 KFX400 Streamlin Brake Lines 180x120
Streamline Steel-braided Rear Brake Line – (Please specify color & length) Available in black, blue, clear, green, red, or smoke. Some colors and lengths may need to be special ordered. $39.95  $35.96buynow kfx400 KFX400 buynow Streamlin REAR Brake Lines kfx400 KFX400 Streamlin REAR Brake Lines 180x120
Billet Brake Line Clamp – 1 pair (Please specify color) Can be used with any 3/4″ or 1″ diameter A-arm. Available in black, blue, red, or silver. $34.95  $29.96buynow kfx400 KFX400 buynow Streamlin Brake Lines Holders kfx400 KFX400 Streamlin Brake Lines Holders 180x120
Chassis-Product-Title-KAW kfx400 KFX400 Chassis Product Title KAW
Lone Star Racing Anti-vibration Steering Stem – Available in +1″ exteneded length and 7/8″ or 1 1/8″ Handlebar clamps included.
$409.95  $399.00buynow kfx400 KFX400 buynow Lone_Star_Steering_Stem kfx400 KFX400 Lone Star Steering Stem 180x120
Axles-Product-Title-KAW kfx400 KFX400 Axles Product Title KAW
Lone Star Racing Axcaliber Axle – Axcalibar Pro Racing Axles are one of the most highly recommended axles on the market for both racers and recreational riders. $495.00  $475.00buynow kfx400 KFX400 buynow lone_star_racing_hon_axle kfx400 KFX400 lone star racing hon axle 180x120
Lone Star Racing Dual Row Bearing Carrier – The billet aluminum bearing housings are machined from 6061 aluminum for superior housing strength. $219.00  $209.00buynow kfx400 KFX400 buynow lone_star_racing_billet-car kfx400 KFX400 lone star racing billet car 180x120
Dura Blue Heavy Duty Axle – This axle is a recreational level axle thatis twice the strength of the stock axle. It’s a cost effective choice when reliability is a prime concern. $406.00  $346.00buynow kfx400 KFX400 buynow durablue heavy duty axle kfx400 KFX400 durablue heavy duty axle 180x61
Dura Blue Eliminator 2+2 Extended Axle – The Eliminator axle used for all forms of racing and high performance applications. Many of the models come with the patented Posi•Lock system which removes threaded sections from the flexing area of the shaft (a source of crack generation).

$460.00  $391.00buynow kfx400 KFX400 buynow

DuraBlueEliminator kfx400 KFX400 DuraBlueEliminator 180x63
Dura Blue Eliminator X-33 Pin Drive Axle with CAST Hubs – The X-33 axle uses the same superior material and heat treating as the Eliminator. The unique difference is in the design of the wheel hub mounting area. Standard design ATV axles neck down to about 1″ in diameter. A splined wheel hub slides onto the axle shaft and is retained with a hex nut. As all ATVer’s know, hubs loosen frequently. The X-33 changes all that. The wheel hub is clamped solid and driven by a pin on a 1-3/8″ diameter shaft. This axle is rifled to reduce weight near the rotational axis of the ATV. The X-33 allows for 16 different wheel offset alternatives.

$655.00  $557.00buynow kfx400 KFX400 buynow

durablue_x-33_axle kfx400 KFX400 durablue x 33 axle 180x54
Dura Blue Eliminator X-33 Pin Drive Axle with BILLET Hubs – This X-33 axle uses the same design, superior material and heat treating as the X-33 w/ cast hubs. The unique difference is in the wheel hub and that they are billet aluminum for superior strength.

$736.00  $626.00buynow kfx400 KFX400 buynow

X-33-Billet3 kfx400 KFX400 X 33 Billet3 180x76

logo-lower-image kfx400 KFX400 logo lower image

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