about how much

[ericstam07]

about how much does it cost to do a complete bore job? i wanna bore my 250x to a 330 about how much will it cost.. i kno i can get the .80 weisco piston kit for about 90 bux...

[ericstam07]

wow no one have bored there motor??? kinda hard to believe

[ericstam07]

up come on people

[JOEX]

I've heard around $35-$50.

[ericstam07]

30-50 bux for the whole processes? like gaskets and stuff... if i bore it 80 over and i going to have to get anything else new to hold up with the more power?

[gojk]

The reason no one has replied, is because your are very vague on what info you want.

A bore job, which is just someone matching the cylinder to the pistion, will cost you anywhere from $35-$120 depending on the company doing it.

To get all of the work done for you, like installing the piston, gaskets, blah blah blah. Then that can range anywhere from $200-$3000 depending on what you want done and who is going to do it for you. Give some more info and I am sure people will be more than glad to give you info.

[RiderTRX400ex]

cost me 35 bucks for a bore job, and about 40 for top end gasket kit

[RiderTRX400ex]

o, and i dont think boring it over.80 will make your stock 250's displacment a 330

[ericstam07]

i heard if i bore it .80 it will make my 250x a 330 so im not sure...how much is it to bore the jug?

all i need is weisco piston kit and a jug bore and a new gasket set to bore it right? or do i need to so somthing else?


oh and with a .80 bore would i have to get new valves or a new cam or anything to hold up with the bigger piston?

[cals400ex]

well, .80 over is massive. i have a feeling you were trying to say .080 over. however, that won't get you to a 330. i have a feeling it may be close to 300, without doing the calculations. with stroking, it may be possible.

the formula is:

bore (in cm) X bore (in cm) X stroke X 0.7854 X # of cylinders

[cals400ex]

Originally posted by cals400ex
well, .80 over is massive. i have a feeling you were trying to say .080 over. however, that won't get you to a 330. i have a feeling it may be close to 300, without doing the calculations. with stroking, it may be possible.

the formula is:

bore (in cm) X bore (in cm) X stroke X 0.7854 X # of cylinders


well actually, i thought you had a 300ex, not a 250. so, you would be no where near a 330. you wouldn't even be a 300. if i knew the bore size on the 250x i would be able to tell you how much .080 over was. .080 over is approximately 2mm's. this actually isn't a ton. well, way more than a clean up bore but it isn't going to be gaining you more than 20cc's for example. you might be able to put a 300ex cylinder on and start from there and then bore it out. i am not sure if these two cylinders can be swapped or not. just do a bit of research.

[ericstam07]

well the 300ex and the 250x have the same bore sized the 300 just has a longer stroke...how much does it cost and what do you have to do to stroke an engine? cuz i have heard about people stroking there 250x to a 406 i dont wanna get into that much i just want to keep up with 400's or atleast be able to run with them

[ericstam07]

up

[ghak99]

www.powroll.com

Check out their site. It should give you a good idea of prices for most engine modifications for the 250x.

[hondardr4life]

Boring a 300ex .080 over makes it a true 300, so i dont think it would make your 250 a 300. I believe a 330 big bore kit for a 300ex will make your 250x around a 310, but i'm not 100% sure, thats just a guess.

[ghak99]

A 80mm big bore kit is 330cc's on a 300ex and/or 288cc's on a 250x!!:rolleyes: