300ex head and top end on a 250x case and tranny? Will it fit??
#1
Would it be possible to put a 300Ex head and top and onto my 250X case? would everything bolt right up? a 400Ex head probably wouldn't work, right?
beacuse i want a bigger bore and want it as reliable or as close to reliable as stock...so i figured, instead of going with a 265X or bigger, how about bolt up a 300Ex head, and bore it out to 330cc, and then put all the works into the motor like high compression piston and all that good stuff?
What do you guys think??
Anyone ever try this?
beacuse i want a bigger bore and want it as reliable or as close to reliable as stock...so i figured, instead of going with a 265X or bigger, how about bolt up a 300Ex head, and bore it out to 330cc, and then put all the works into the motor like high compression piston and all that good stuff?
What do you guys think??
Anyone ever try this?
#4
When you are talking about the displacement you are talking about the amount of area the piston displaces. If you get a bigger piston, it will displace more, the piston is wider moving more air, fuel, and exhaust per stroke. If the rod and crankshaft are designed to make the piston move further up and down you will also get more displacement. This is what BermBanger is talking about. I don't know all that much about the 250X, so I don't know if the 300EX gets it's extra cc's out of the bore, or the stroke.
One thing that I tried on my old 300EX is I put a vented air box lid on. I had to rejet, but I got more power. The air box is restrictive on this machine, look at the front where it takes in the air, it sucks trough two small tubes in the frame. I read in a 300ex pipe shoot out that you get a 1/2 horse power increase by doing this. I don't know you might have already tried this, but it's an easy cheap power gain.
One thing that I tried on my old 300EX is I put a vented air box lid on. I had to rejet, but I got more power. The air box is restrictive on this machine, look at the front where it takes in the air, it sucks trough two small tubes in the frame. I read in a 300ex pipe shoot out that you get a 1/2 horse power increase by doing this. I don't know you might have already tried this, but it's an easy cheap power gain.
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