My 426 rebuild

[PaRedneckRiders]

Ok so not to long ago i decided i was gona by another 400ex with the money i got from selling my cr500

So i figured why dont i find a decend blown up 400 and start from scratch, i found a blown 400 locally for 500$
the guy told me it only needed a piston and rings because the person he bought it from put the piston in backwards and smacked it off the valves (so i figured it needed valves)

well i figured i would just post some pics of b4 and where i am now

As of now it will be an 11:1 wesico 426
Kibble white valves
Will add more goodies later on such as cam and 450r carb

So heres a pic of when i first got it (not that grat becasue it was dark outside)

[PaRedneckRiders]

Scored some silver maier plastic with a quadtech carbon fiber hood

[PaRedneckRiders]

the clutch is back together and the cylinder and piston r back on

[PaRedneckRiders]

cylinder head and cylinder head cover are back on really starting to come together,
Gona try and pull a long night and get as much done as i can

[PaRedneckRiders]

and this is as it sits right now

[jcs003]

just a suggestion. you should powdercoat the side cover and such while its apart. its not very expensive and well worth it IMO.

[childert79]

Your moving along pretty fast. You resleeve your cylinder and eliminate the base gasket? You probably already know but you need atleast an oversize oil tank and scoops. Goodluck with the build:)

[jman7290]

Cool pics man, we are rebuilding my brothers engine to a 426 with a stage 1 hot cam, GT Thunder HD head studs, and HD timing chain.


05 440 11:1 Big Bore, Hot Cams stage 2, GT Thunder HD studs and HD timing chain, Ported & Polished, Trinity stage 4 full exhaust, Doug Eichner signature series 440 carb with billet spacer plate, AMR stage 3 CDI with Monster Coil, Uni Filter with Pro Design Billet intake adapter and aluminum air box with scoop and outerwear, over sized aluminum oil tank wih air ports, Elka Elite front shocks with Full Flight +2 A-Arms, LoneStar +3 axcalaber axel with billet twin row bearing carrier, LSR brake block off, ITP Rims, DG Fat series swing arm skid, DG Race Peg nerf bars, DG V-Lite front bumper, DG case saver, OMF air scoops, Rox dash panel and hand gaurds, Precision steering stabilizer, Fasst Flex bars, ODI Grips, Outerwears shock covers.

[PaRedneckRiders]

ya im working on the oversize oil tank or at least a good set of air scoops and the quad tech race hood should help with airflow also
As for poweder coating i was really thinkin about it becasue i know a couple ppl that powder coat parts in small batches i could get it done real cheap but at the moment im kinda starped for cash so i juz wanta finish it and make it nicer later on

Here is one of the latest pics, got the carb and airbox on but juz sat the tank on to c what its gona look like

[PaRedneckRiders]

another updated pic

[MidnightBlade]

Hmmm...........need a bigger hammer:cuss:

[MidnightBlade]

note if you dont have parts left over you did something wrong

[PaRedneckRiders]

u mean if i do have leftover parts?
well when i bought it the guy handed me the head and cylinder and everything in a box
Then he handed me a big coffee can filled with bolts and theres no way they were all off the quad

Well guys work stops for now because i wont b home this weekend to finish it
But when i get back ill get some new pics and prob a youtube vid or 2

[RaceinCircles]

Hahaha Midnight l hear ya on that one!! We built a 383 stroker motor for our stock-car and had bolt left over and thought 'oh ....' and its been running for 4 seasons now!

Build is lookin good so far! l love that pic with the clymers sittin on the tire.

[MidnightBlade]

every engine my cuz rebuilt he had parts left over. it ran better each time too. lol.......still havent figured where that bolt went?!

[PaRedneckRiders]

haha ya i juz got the manual because this is the first 4 stroke ive rebuilt i rebuild my cr500 b4 i sold it but i figured hey for 20$ i might as well get it ya no haha
and ya i like that pic 2

[PaRedneckRiders]

Is there anything else i could put in this thing to make it run nice and have low and mid range power (other than a cam)
That is somewhat easy to install

[jman7290]

How about a rev box!


05 440 11:1 Big Bore, Hot Cams stage 2, GT Thunder HD studs and HD timing chain, Ported & Polished, Trinity stage 4 full exhaust, Doug Eichner signature series 440 carb with billet spacer plate, AMR stage 3 CDI with Monster Coil, Uni Filter with Pro Design Billet intake adapter and aluminum air box with scoop and outerwear, over sized aluminum oil tank wih air ports, Elka Elite front shocks with Full Flight +2 A-Arms, LoneStar +3 axcalaber axel with billet twin row bearing carrier, LSR brake block off, ITP Rims, DG Fat series swing arm skid, DG Race Peg nerf bars, DG V-Lite front bumper, DG case saver, OMF air scoops, Rox dash panel and hand gaurds, Precision steering stabilizer, Fasst Flex bars, ODI Grips, Outerwears shock covers.

[flyboy1294]

Originally posted by jman7290
How about a rev box!

That would be for extreme top end only.

[PaRedneckRiders]

ya well ive herd some negative things about rev boxs
and seeing as the 400 makes most power on the bottom end and thats where i want more power i dont think it would do me much good

[jman7290]

All that I am saying is for under a hundred bucks it is a great mod, you can get up to 1200 more rpms out of them so when you are up 1200 rpms higher at the top end of one gear it gives you more to the bottom end going into the next gear. And no they wont blow your engine. The stock Honda rev limit is way in the safe zone.

05 440 11:1 Big Bore, Hot Cams stage 2, GT Thunder HD studs and HD timing chain, Ported & Polished, Trinity stage 4 full exhaust, Doug Eichner signature series 440 carb with billet spacer plate, AMR stage 3 CDI with Monster Coil, Uni Filter with Pro Design Billet intake adapter and aluminum air box with scoop and outerwear, over sized aluminum oil tank wih air ports, Elka Elite front shocks with Full Flight +2 A-Arms, LoneStar +3 axcalaber axel with billet twin row bearing carrier, LSR brake block off, ITP Rims, DG Fat series swing arm skid, DG Race Peg nerf bars, DG V-Lite front bumper, DG case saver, OMF air scoops, Rox dash panel and hand gaurds, Precision steering stabilizer, Fasst Flex bars, ODI Grips, Outerwears shock covers.

[PaRedneckRiders]

ya man i no but i guess ill see

[PaRedneckRiders]

ok so now im looking to drop as much weight off the quad as possible
What can i do
the plastic is already race cut
has an e-brake bloke off
and headlights will be bypassed when the silver plastic is put on
What else can i do

[PaRedneckRiders]

will have some new pics up tomorrow
i was gonna work on it but figured well its nice and all my friends are riding so i went to and didnt get anything done

[PaRedneckRiders]

some updated pics of the 426
The plastics just sitting on it thats why it looks stupid

but its almost done

[PaRedneckRiders]

1

[PaRedneckRiders]

2

[PaRedneckRiders]

3

[PaRedneckRiders]

4
Fenders look uneven, well there not its just cause its sittin on the quad and it should look alot better with the silver plastic im juz putting yellow on it to break it in and get used to it

[RaceinCircles]

it wont necessarily get you more low end power, but you can get smaller diameter tires like 18 inch.. or you could also change your gearing..

Just a thought

[PaRedneckRiders]

well im getting 20-11-9 because i cant get them pretty cheap
and i will change the gearing its like a 14-15 now so ill prob drop to like a 13