MY FRIEND HAS A 98 300EX WITH A DESTROYED ENGINE. HE WAS LOOKING TO BUY A WHOLE NEW ENGINE BUT IS HAVING TROUBLE FINDING ONE. I WAS WONDERING IF ANY OF YOU GUYS WOULD HAVE OR KNOW WHERE WE COULD GET ONE THAT IS IN GOOD CONDITION. WE FOUND AN ADD IN ATV MAGAZINE FOR EAST COAST ATV, THEY HAVE THEM FOR ABOUT $1,400 USED. I WAS ALSO WONDERING IF ANY OF YOU HAVE ORDERED OR DEALT WITH THEM BEFORE WE GO AND ORDER AN ENGINE FROM THEM. WE WOULD HATE TO BUY A JUNK ENGINE AND BE STUCK WITH IT. THANKS FOR ANY HELP YOU COULD PROVIDE US WITH.

 

why dont you gust get a 350x motor and put it in. it would be alot faster.

 

What is wrong with your friends engine? What happened to it?

 

i bought one 2 years ago used i think from them and it has been good to me but i also freshend up the top end.

 

HE WAS RIDING IT AND DIDN'T REALIZE WHEN HE HIT A FROZEN CLUMP OF DIRT IT KNOCKED A HOLE IN THE BUTTOM OF THE ENGINE AROUND THE DRAIN PLUG.

 

DON'T YOU THINK THAT WOULD BE MORE EXPENSIVE? I THINK IT WOULD. HE DOESN'T WANT TO DEAL WITH ALL THE MODIFICATIONS, HE JUST WANTS TO PUT THE NEW ENGINE AND GO.BESIDES THE 300 ENGINE WOULD BE AT LEAST SIX YEARS NEWER. AS FOR FASTER I HAD A 300 WITH A WHITE BROS. CAM IN IT AND I OUT RAN THE 350X, AND IT ONLY COST'S THREE HUNDRED BUCKS IF YOU DO ALL THE WORK YOURSELF.

 

YOU THINK YOU BOUGHT IT FROM THEM OR YOU THINK IT WAS USED?

 

IT WAS USED & I THINK IT WAS FROM THEM . STILL NO REGRETS.

 

Did you consider replacing the bottom cases, it might be cheaper and you will have all new parts, and the same engine. If it seized you might be ahead by buying a new engine, considering the work that would be involved with ripping down the engine, and getting all the bearing out of the old case, and putting it in the new one. I recommend if you do decide to rip the engine down to have a service manual, not the owner's manual that tells you nothing about ripping the engine down, and a torque wrench, so when you are done you have a quad that will run correctly.

 

hey man East Coast Atv they have all kinds of motors new and used. it says used 300 ex motors are from $900 to $1400. their number is 1-215-529-4632. later