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View Full Version : 426 mod Q's


sparks400ex101
02-20-2003, 11:38 AM
what all do i need to make a 426 ive been debating between the 426 and 416 which will give me more top end? ive heard the 416 but ive also hear the 426 is also strong top end and if i go with a 426 what is everything i need the make it take full advantage of the mods??:confused:
Extremeracer167
02-20-2003, 11:39 AM
well u will need a .120 piston, Cam, good exhaust, and ide get some head studs from TC.
Natertot426ex
02-20-2003, 11:53 AM
look what I have. My really rips
sparks400ex101
02-20-2003, 12:36 PM
thanks i appreciate it man i want to build one i just cant decide between that and a 416
sparks400ex101
02-20-2003, 12:45 PM
i just noticed i typed 426 im sorry bout that i meant 425 i dont know what i was thinkin bout
honda400exrider
02-20-2003, 05:35 PM
NAtertot, did u have any problems with your rev limiter? ive heard stories of it making it difficult to start:ermm:
Chanman420q
02-20-2003, 05:41 PM
i also am having a tuff time deciding on a 416 or 425... i know im stock right now but i just got some some mods... i think im gunna do my bore kit when i get my cam. I also would like to know whixh gave more top end. Also Which is going to be more reliable?
Sick0
02-20-2003, 09:10 PM
I would go with the 416, one reason is you could go to a 426 if you have to bore it out more. I would also say a 416 will rev faster but the 426 will make more power. I would think the power won't be much diffrent between the two if the rest of the mods are the same.
Natertot426ex
02-21-2003, 07:05 AM
It didn't want to start when it was cold but now I don't have any problem starting it. I put an Edelbrock carb on it and it will fire right up now. if you put a bigger pilot jet into it it may help it. I have a lot of top end. In a flat out drag with a stock raptor we are real close at the bottum but as soon as I hit top end of my power band i pull away from him farely fast.
Chanman420q
02-21-2003, 06:05 PM
desions... what will give a better overall power, and whats gunna be more reliable? speed isnt everything but whats gunna be faster :p
Steve-o 400EX
02-21-2003, 08:21 PM
Go 416, it revs a little quicker and the 426 only gives about a half horsepower more. Unless you are going to get major head work, oversized valves and the whole kitten kabootle, go with the 416 because its cheaper, more reliable and goes like hell!:devil