416 bore...

[red_rider_069]

i currently have a 440 big bore.. i'm thinking about gonig back down to a 416 becasue so many ppl say it runs better.. does any one have any info on that.. and would i have to resleeve for the 416? or does a stock sleeve work? i hear stock sleave fits but idk:confused: please let me know if you have put a 416 into you 400 thanks.. =)

[honda729]

i got my stock sleeve bored to a 416

[red_rider_069]

Originally posted by honda729
i got my stock sleeve bored to a 416
but do you jsut put in a differnt piston or what? i have to put my stock sleeve back i know that.. but what piston do you have in it?!?!

[TRXRacer1]

Originally posted by red_rider_069
but do you jsut put in a differnt piston or what? i have to put my stock sleeve back i know that.. but what piston do you have in it?!?! You can't put your stock sleeve back, you'll need another cylinder all together. A 416 is 2mm over stock and I certainly wouldn't ditch your 440 for one.

[F-16Guy]

I've been on this forum for quite a while, and one of the best threads I've ever read regarding 440 kits (or engine building in general, for that matter) is below. If you bought a kit with a Wiseco flat-top 11:1 89mm piston, you need to read this thread in it's entirety. It will explain why people incorrectly think that a 416 will beat a 440. You may be able to save a good chunk of money and get the peformance you're missing by having your cylinder decked to achieve the proper compression ratio and squish band. It's kind of a long read, but it has a ton of information and will help you make the most of your engine. I think this thread is pretty old, so if it doesn't mention it, I would highly suggest getting professionally installed heavy duty head studs if you tear your engine down.

Happy reading:
http://www.exriders.com/vbb/showthread.php?s=&threadid=8316&highlight=have+decked

[REDRIDDER]

Originally posted by TRXRacer1
You can't put your stock sleeve back, you'll need another cylinder all together. A 416 is 2mm over stock and I certainly wouldn't ditch your 440 for one. you can contact LA SLEEVE they can make a sleeve to fit the bored cylinder and you could have them bore the new sleeve to fit a 416 piston and also itll have enough room to be bored out to a 440 again in the future.A plus is the sleeve will be thicker than it was stock.

[TRXRacer1]

Originally posted by REDRIDDER
you can contact LA SLEEVE they can make a sleeve to fit the bored cylinder and you could have them bore the new sleeve to fit a 416 piston and also itll have enough room to be bored out to a 440 again in the future.A plus is the sleeve will be thicker than it was stock. I'm sure you can but that is one hell of a waste of money! You could pick up a used cylinder and have it bored for under $100.

[red_rider_069]

well i dont know what to do now haha
i think im gonna stick with the 440 and jsut get a new piston :D

so the thing with the deck height... is that only with the pistons that come in kits o? I dont really understand. if someone could better explain to me whats all going on.

[red_rider_069]

Originally posted by FoxHondaRider
so the thing with the deck height... is that only with the pistons that come in kits o? I dont really understand. if someone could better explain to me whats all going on.
no idea.. i'd like to know aswell

[TRXRacer1]

It goes with any piston. There's a good explanation of this in "ask Mickey" part I or II in the tech articles here.

[86 Quad R]

actually what you could do is go with a new 440 b/b sleeve and use it in it's raw form and use the corresponding piston. this will give you the 416cc's your after. otherwise you'll have to get another stock oem cylinder and have it bored to a 416 as previously mentioned.

[red_rider_069]

Originally posted by 86 Quad R
actually what you could do is go with a new 440 b/b sleeve and use it in it's raw form and use the corresponding piston. this will give you the 416cc's your after. otherwise you'll have to get another stock oem cylinder and have it bored to a 416 as previously mentioned.
yea well thanks.. im gonna go with a 440 12.5:1 compression piston instead.. my sleeves perfectly fine =)

[TRXRacer1]

Originally posted by 86 Quad R
actually what you could do is go with a new 440 b/b sleeve and use it in it's raw form and use the corresponding piston. this will give you the 416cc's your after. otherwise you'll have to get another stock oem cylinder and have it bored to a 416 as previously mentioned. I thought the BB sleeve was around a 426, not a 416.

[red_rider_069]

Originally posted by TRXRacer1
I thought the BB sleeve was around a 426, not a 416. no idea:confused: