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Big Bore 400EX - 440EX Top Speed Test. Showcasing Custom, Handmade Brakes Lines From Core Moto

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In this video, we use a Garmin inSearch Mini to test the top speed on this bored 440ex. Custom Core Moto brake lines just made it onto this bike, and finally we found some foot pegs that we love! Check out the 400ex foot pegs over at p4quads, because we think you're gonna love them too.
Current Price - $12,659
Parts & Cost List:
Initial purchase price- $900
First engine build- $1000
Second engine build- $1000
Third engine build- $1500
Custom Wiring harness- $600
Alba Racing beadlock wheels- $370
Plastics- $500
Rigid headlights- $190
Rigid lights installation- $200
Core front/rear brake lines - $260
Alba brake line clamps- $15
ASV levers- $135
Pro taper Bars- $140
Starter switch- $40
Houser anti-vibe bar clamp- $95
Fox Shocks Float 3- $620
Renthal rear sprocket 36 teeth- $78
Pro X front sprocket 14 tooth- $15
Tusk Rear hubs- $105
CFM oil cooler- $160
CFM shrouds- $55
CFM Battery box- $150
American Star tie rods- $90
American star tie rod ends-
OEM Honda skid plates- $325
Pelican tool box- $48
HMF muffler- $440
ModQuad case saver- $25
Alba Racing intimidator front bumper- $80
EK premium X-ring chain 520 pitch- $182
Yuasa battery- $66
UNI dual filter- $31
Alba gas cap- $26
Cerakoted Engine Covers- $200
Engine cover helicoils- $264
Lonestar bearing carrier - $170
All Balls wide carrier bearings - $45
Outlaw racing rear brake disk - $50
Honda OEM rear caliper and master cylinder - $190
CRU rear axle nut/clip/sleeve - $44
Alba Racing +1” steering stem - $160
P4Quads Foot Pegs - $95
Engine bolt kit from alloyboltz.com
Engine crankcase seal kit from Outlaw Racing
Crankcase plugs from Outlaw Racing
Billet Shifter from Pro Design
32mm chain roller from ModQuad
Plastics treated with Gtechniq C4
Paint is the following:
- Base coat: PPG self-etching epoxy
- Intermediate: CARC two-component, waterborne, acrylic aliphatic urethane used for military vehicle coating.
- Finish: Spectracron 380 2-part High-Solids Poly-iothane, Polyester Polyurethane, enamel topcoat
Spectrocron 380 is used to paint heavy equipment such as skid steers and front-end loaders and has a pencil hardness greater than most powder coat systems.
Tags: atv movie
ATV Quad Yamaha Honda Cross Sand banshee350 Trx400ex HillclimbRide Polaris KTM mxr 450 525 and Kawasaki KFX450R
mxr sx yfz450 kfx540r trx450r yamaha honda suzuki kawasaki mx tracks sound motoworks fox elka long travel yoshimura tags msr hiper race h-bomb film bomb squad huevos 1 2 3 4 5 6 7 8 9 10 11 12 13 14 dirt bike blak cops atv vs cops police crash compillation professional gopro sand pit dune jump atv quad movie sport stunt fox racing ltr450 brp can am ds450 rzr outlaw raptor blaster banshee 400ex warrior 350 500 kfx z400 mojave 250r quadracer quad racer atc DJI Restoration,
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28 авг 2024

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Комментарии : 86

@sethsrcgarage4300 3 года назад

Now that’s a baller setup right there, I love it, I have a similar setup on my 2013 400x

@johnclark655 3 года назад

Not too shabby, best one I’ve seen yet

@swampgumpharpy7977 3 года назад

Thanks, John. We are really happy with how it turned out.

@johnclark655 3 года назад

Swamp Gump Harpy I have an 04 TRX 450 R and it took me a long time to complete, I am a truck driver and I am gone for long periods of time. I wish somehow you could see my project, I’m new at doing all of the stuff on RU-vid so I’m not sure how I could show you my project.

@swampgumpharpy7977 3 года назад

@@johnclark655 email pics to me at ngray@tankspek.com

@johnclark655 3 года назад

Swamp Gump Harpy I don’t have an email account at this moment because I have an Apple phone and it crashed recently and I forgot my password to my account. Here is my cell phone number 269-363-2201, I will be glad to send you all of the pictures of my project

@johnclark655 3 года назад

Swamp Gump Harpy I’m not completely finished with it, I still have plans for the engine and powder coating the frame. That’s about all I have left to do on this thing

@gstark4751 4 года назад

Glad to see you like the foot pegs. If you ever have any questions with the 400ex motor or really any motor Jeff Snure is the guy to talk to. And if you haven’t already installed some Headstuds for your motor I recommend the Gt Thunder headstuds he makes.

@dirtrider6090 3 года назад

I have an issue I can’t shift to 5th gear on any of my ex

@Brandon-jr5sn 3 года назад

@@dirtrider6090 how many do you have?

@dirtrider6090 3 года назад

@@Brandon-jr5sn 2

@Brandon-jr5sn 3 года назад

@@dirtrider6090 when your on neutral you shift 1 down and then 4 up

@duner88 4 года назад

Watch your head studs. I would recommend putting some arp head studs in it. The 440 kits love spitting out head gaskets. Love the build man. I’m currently working on rebuilding a ktm 505sx

@swampgumpharpy7977 4 года назад

It has head studs. Before, it was blowing head gaskets about every other tank of fuel! 😣 We really haven’t gone into detail about what’s been done to this quad, but we should some time. Would make a long video.

@duner88 4 года назад

Swamp Gump Harpy that sounds right. Glad you did them just looking out man.

@swampgumpharpy7977 4 года назад

ryan marcum Man, you keep looking out. It takes a village to keep these relics running like they ought to. Comments like yours is how we’ve learned. Well, that and thousands of hours of hands on. Thanks for adding some good pointers.

@KimKim-oo2up 2 месяца назад

Hi sir, may I know what brand did you used for that Big bore kit? And where you bought it? Thank you sir!

@swampgumpharpy7977 2 месяца назад

It has since been rebuilt to a 416, all JE.

@chrisbarrier6839 2 года назад

That's a beautiful quad. Except for you have everything but the guards that go on your foot pegs to keep your feet from getting run over when you go off a jump. Looks good but I'd still beat you in a race with my 400ex lol

@swampgumpharpy7977 2 года назад

Hard pass on guards for a trail quad

@justinmoses6447 3 года назад

What wheel and tire size are you running for front and rear. Just purchased a 400 myself for a renovation project and been conflicted with sizes to run.

@swampgumpharpy7977 3 года назад

9” back (5+3 offset), and 10” front. Good luck, pal.

@isaiaguilera6279 3 года назад

Could be faster on dirt have you tried that in a straight way trail or sum

@outdoorssmith5454 2 года назад

My dad had a 400 E X that did 110 mph when it was bored out to 440 and it was a 2001

@swampgumpharpy7977 2 года назад

That's really awesome! That's a lot of horse power along with proper gearing. I wonder what the torque was on trails with it geared that high.

@damienrodriguez3288 2 года назад

I am restoring my 2001. I installed the big bore 440 back around 05. It clocked 113 on the gps. Been setting since 13. Im hoping to somehow get to 120 this time 😆

@outdoorssmith5454 2 года назад

@@damienrodriguez3288 I hope you get it, his was built for climbing the cinder hills we have here that are a mile tall and almost vertical lol

@bigcrazyassbayouboy 3 года назад

Bad ass build

@swampgumpharpy7977 3 года назад

🙌 Thanks!

@carterfunair2999 4 года назад

With x maxxis rear and grim reaper 10 ply

@chriszavattieri9304 28 дней назад

I'll smoke that on video and I have a 440 with a stage 3..I rock a 450r LMFAO big difference

@carterfunair2999 4 года назад

My.440 with stage 3 hotcams and a 440 kit and a jetted out carb will do abour 93

@thatbigblock7007 4 года назад

Carter Funair my raptor does 107mph

@swampgumpharpy7977 4 года назад

#flexin

@jcrowe3065 4 года назад

My nikes will do 20 mph for 3 seconds 👊🏻

@lathen._3172 3 года назад

on stock sprockets?

@matthewjohnson2495 2 года назад

All the people that has a 400ex has no idea how hot they run let alone if you do any hill climbing but if I was you I’d get them jugs out of the front of the motor so that thing can get some air and if you don’t have a lazor temp reader you should get one so you’ll see why I say get rid of them jugs. No bearings last like factory Honda and breaks to as far as I’m concerned

@mitch9509 Год назад

$30 trans/engine oil cooler kit from any auto parts store and adding it inline before or after the stock oil cooler and it never over heats.

@xander2204 2 года назад

How you get the blue plastics

@anthonyhall6945 3 года назад

What the jets on the carb

@slowman9786 3 года назад

What exhaust wrap is that, and do you recommend it?

@swampgumpharpy7977 3 года назад

It’s whatever they had at the parts store. Nothing fancy, and it comes in either bronze or black. If it’s properly installed with high-heat ceramic paint behind it, and treated with layers of ceramic paint after it’s installed, it’s supposed to reduce engine heat exposure significantly. Seems to last about two years. I like it fairly well because it’s functional, but wear gloves. Trust me on that.

@karfanatvihypeoli9631 Год назад

how many hp for this quad

@swampgumpharpy7977 Год назад

Only dyno around isn't a place where we do business. Probably will never know.

@YourFavCliper 4 года назад

What are the aluminum shields kinda by the shocks called?

@swampgumpharpy7977 4 года назад

Those are air shrouds, made by CFM.

@jiggalojonski 3 года назад

14 sproket front is OEM tho the rear seems to have been an aftermarket ratio

@swampgumpharpy7977 3 года назад

14 & 36

@jiggalojonski 3 года назад

@@swampgumpharpy7977 14 and 39 is stock which goes to 60MPH or 100KM here in Canada what a big difference 3 teeth makes an extra 15MPH

@mitch9509 Год назад

Stock on the newer models is 14 and 39. But on the 99-07(I think those years are right) the stock sprockets are 15 and 38.

@fmjjr339 4 года назад

What kind of plastics are those and where can I get them ?

@swampgumpharpy7977 4 года назад

These Plastics are made by Maier, and were purchased from ZMP Performance. You can get the 400ex plastics with or without the stock headlight cut-out. These are racing plastics, so they are without the cut-out. The color is called electric blue.

@noahgoulet5028 2 года назад

What cdi so you recommend on a regualr400 ex

@swampgumpharpy7977 2 года назад

Stock CDI on a carbureted 400. Make your fuel adjustments at the carb with jetting and your air flow adjustments with the intake and exhaust. Then dial in your needle and let the stock CDI alone.

@leonardwysingle4436 3 года назад

Do you fix them up for others. I need mine bored?

@swampgumpharpy7977 3 года назад

We don’t fix these up for others. CT Racing is the place we would recommend for that.

@lsxdirtbag1530 4 года назад

It sounds like you have a hell of a knock

@swampgumpharpy7977 4 года назад

Yes it does. Of course, 400EX’s all have noisy valve trains, but it’s likely that the valves weren’t put back stock after brake-in on this motor. The sound could also be pre-ignition from some older fuel that we were running that day.

@lsxdirtbag1530 4 года назад

Id definitely say valves honda bottom ends almost never go out

@swampgumpharpy7977 4 года назад

Agreed, pal. Thanks for watching!

@enjoythesho1992 3 года назад

@@lsxdirtbag1530 I've seen crank bearings go on hondas

@michaelthomas788 Год назад

There's no way in f****** hell that's that's a 440 Big bore kit that only goes 75 miles an hour I updated it to stage 2 air cleaner cam jet kit complete exhaust added a 2 oil cooler primary chain 15 tooth sprocket in the front 36 in the rear my 2004 stock bore wisco jug and piston 10.5:1 compression ratio I get my 400ex to 85mph according to the GPS speedometer I added to my bike which is supposed to be more accurate then every speedometer on every

@kadenfletcher8095 4 года назад

Hey what 440 kit did you use

@dinkdink1806 4 года назад

I jus got my 440 done i used hot rods kit top n bottom wiseco piston

@gabriellopez8101 3 года назад

Do you remember where you got the shock covers?

@swampgumpharpy7977 3 года назад

It doesn’t have covers. These are just bare fox shocks.

@gabriellopez8101 3 года назад

Swamp Gump Harpy on the back shock sorry for phrasing that wrong

@swampgumpharpy7977 3 года назад

Gabriel Lopez No problem! Those were bought 4 years ago when we did the first build. They looked awesome as a full set, and were better than most shocks I’ve seen. Unfortunately, they’re not made any longer. Had a lot of folks ask me about them!

@gabriellopez8101 3 года назад

Swamp Gump Harpy :( well thanks anyways for the reply

@matthewjohnson2495 2 года назад

Running a 36 on the back will kill your bottom end and over all torque and you would think it would help the top end but I can tell you the bike would have to have 50 h/p to be able to pull a 14/36. I’d bet 100 bucks that it will be faster with a 14/37 cause there’s more of a chance that it will have the power to pull it. Try it and see

@Nunya-gk9fr 2 года назад

Have you ripped that rear brake line out yet lol?

@swampgumpharpy7977 2 года назад

Nah man. That's cute you're being so concerned.

@dylanriggs7128 3 года назад

Why run no nerf bars?

@swampgumpharpy7977 3 года назад

Because I don’t like them.

@thomasfuller8848 3 года назад

Videos for When xnxx dont load

@mitch9509 Год назад

Man problems lol. That's what you get for not using pornhub

@oscarrangel8899 4 года назад

How much does a build like that cost

@swampgumpharpy7977 4 года назад

If you’ll click the drop down menu, the mods on this are itemized with prices. The final price is north of $12,000. We admit that this is truly insane, but lots of fun! 😄 A build exactly like this could be had for around $9,000 - $10,000 if you’re experienced, and can perform the engine work yourself.

@dinkdink1806 4 года назад

@@swampgumpharpy7977 i jus did a 440 ex build im bout 6000 into it and still few more things im gonna do to it

@mitch9509 Год назад

Idk why but that darn piece of cardboard that is in your hat becaudr you didn't take it out before wearing it the first time... is driving me nuts lol. I'm just giving you a hard time and I'm kidding. But beautiful build. I've rebuilt a few 400s engines and nothing ever broke afterwards. Maybe you're doing something wrong or need your torque wrench calibrated lol.

@swampgumpharpy7977 Год назад

We were having it rebuilt at shops. Finally shipped the motor to California to have it built right, and still not good on the top end, so we just rebuilt it ourselves. It's all good now. If it makes you feel better, the hat got sat on.

@400exadventures3 3 года назад

Not a huge fan of this build really I’d want nerf bars carbon fiber plastics and I’d build the engine one good time not 3 separate times 😂😂😂😂😂 and buy some of the 450stuff instead of stock Honda stuff what’s the point? I’d rather buy better stuff and get better performance stuff rather then stock Honda stuff that’s just the same old stuff but that’s me 🤷🏻‍♂️

@swampgumpharpy7977 3 года назад

And if I were your parents I would not have made you fat with big ears. Stock Honda parts like... what, the brakes?? Go build one if you like, in the mean time, soft ball your bullish!t right in, kid, and I’ll hit it out of the park every time.