What would have more hp and torque. What one would be faster all around.
You do not need to resleeve if you bore to a 416 do you?
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Registered User
What would have more hp and torque. What one would be faster all around.
You do not need to resleeve if you bore to a 416 do you?
Research Assistant
Engine Research Center
University of Wisconsin-Madison
Department of Mechanical Engineering
2003 400ex
2005 Arctic Cat F7 EFI
Senior Member
I dunno if 416 would be better then 440.
426, however, is much faster then the 440 kit. You do not need a resleeve on 416 or 426...
-Justin
YFZ450
98% of the teenage population will try, does or has tried smoking pot. If you're one of the 2% who hasn't, copy & paste this into your signature.
Registered User
i would get the 416 and the cam.
2005 450r
*sold* 2001 400ex
"If you think you can, you can. If you think you can't, your right."
"A leader will take you where you want to go. A great leader will not necessarily take you where you want to go but where you ought to be."
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Senior Member
do the 416 w/ cam, i did and it made a huge difference, probably more reliable too, plus i've heard from a lot of people say that they have a lot of problems with head gaskets blowing out with a 440.
2003 400ex,
416 10.8:1 Ross piston kit,
hotcam stage 2,
leager +2+1 arms,
pep triple rate shocks,
lonestar +4 axle,
GT Thunder cdi,
complete stainless yoshimura rs3 comp,
AC racing front bumper,
tinners scoops,
X Factor monster peg nerf bars,
pro design kill switch,
tag x-5 handlebars,
K&n w/ outerwears
ITP c series wheels with holeshot xcr tires,
E-Z pull clutch lever/perch
complete shockwears,
renthal 14 tooth front,
dyno jet,
AC racing full body skidplate
airbox eliminater
frame powdercoated gun metal grey
Run what you brung
go with 416 and cam... youll be better off IMO
02' Silver 440ex
Full P&P, Edelbrock Doug Eichner 440 carb, Motoworks SR4, Hotcams, Wiseco 11:1, Hotrods...
Got Gas Money?
440 and cam.. i just finshed mine up not to long ago, and it rips... no gasket problems or anything... just make shure whoever does the sleeve work knows what they are doing when they put it in.
Have fun
Vic
99 Grand Prix GTP : Caged, Wheelie Bar's, Lexan Windows, Stattam T67, ZZP Built Trans, Stage 5 Turbo Cam, ZZP CNC Heads, L36 9:1:1, 540 whp and quest for 9's
2001 440Ex.. Hiper, Razar, TCS, Shorty LRD, Supertrap,Herman,K&N, Wave, RPM, Tag, Houser, Shift, Outterwears, Quad Tech, JE, HRC, DG,Moose, RK, CRF Timing Chain, Branett,Skat trak, then sum...
Registered User
I don't understand gaskets that well. Do you order them for that size that your going to bore it to or do you modify the gaskets. Thanks for the help.
Research Assistant
Engine Research Center
University of Wisconsin-Madison
Department of Mechanical Engineering
2003 400ex
2005 Arctic Cat F7 EFI
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