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4 mil question


Aaron109

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you probably wouldnt notice any difference at all and for the money you would be spending it would be better to just buy a 4mm longrod crank 115 rods and getting domes cut for it but if u do that you will also want to have your cylinders ported to match up your port timings also u will need to run blaster pistons which start at 66mm

 

 

OR............

 

you could do a spacer plate found here:http://www.ebay.com/itm/Boss-ATV-Racing-BANSHEE-YFZ-350-STROKER-SPACER-PLATE-ALL-YEARS-4mm-race-engine-/181240219798?pt=Motors_ATV_Parts_Accessories&hash=item2a32c24896&vxp=mtr

 

 to raise the cylinders up then there would be no porting required but you would still have to run the blaster style piston which is a 795 series wiseco piston kit found here:http://www.ebay.com/itm/Banshee-66mm-080-4mm-4-Mil-Long-Rod-795-Wiseco-Pro-Lite-Pistons-Piston-Pair-Set-/251358138820?pt=Motors_ATV_Parts_Accessories&hash=item3a861cd1c4&vxp=mtr

 

most of the guys on here will tell you u should not run the spacer plate but it is an option

 

my opinion is also not to run the spacer plate get a coolhead and have a builder cut you some domes you will like it much better being able to change your domes out to play with your compression

 

hope this helps

 

wes

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Everyone is so deadset on a new crank and making it a 4mill......

 

Nothing wrong with a nice 370 long rod motor.

Strip your stock crank down, put on the longer rods and replace your bearings with top quality new ones. You'll never be the victim of a Wang crank.

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I know of 2 people that speak highly of the 370 long rod. 1 of them is in this thread, the other built my motor. I don't have the 370 motor. But he said a well set up one will be able to be pretty damn close to my 4 mil. And a few people have seen/rode my 4 mil or know of my builder.

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LOL.......In that case, why not just keep your motor the same till it's so wore out that a tow strap is needed to start it?

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